Domestic U.S. Air Mail was established as a new class of mail service by the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...

Post Office Department (POD) on May 15, 1918, with the inauguration of the Washington–Philadelphia–New York route. Special

postage stamps A postage stamp is a small piece of paper issued by a post office, postal administration, or other authorized vendors to customers who pay postage (the cost involved in moving, insuring, or registering mail), who then affix the stamp to the f ...

were issued for use with this service. Domestic air mail became obsolete in 1975, and international air mail in 1995, when the USPS began transporting First Class mail by air on a routine basis. All post-1977 United States stamp images are copyright of

USPS The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or Postal Service, is an independent agency of the executive branch of the United States federal government responsible for providing postal service in the ...

. Scott cataloged stamps received a "C" designation for airmail issues beginning in 1940. Designated for international mail, and showing a small airplane, the January, 2012 $1.05 Scenic America series issue was designated C150. However, with the January, 2013 issue of the $1.10 Global Forever Stamp no specific airmail purpose was shown in the design. Rather, the Postal Service stated that this "stamp offers a single price for any First-Class Mail International 1-ounce letter to any country in the world." Thus a regular series Scott number, 4740, was designated.

1918–1919

, May 13, 1918 , , 24¢ Rose & Blue
, , Inverted Curtis Jenny Biplane
Design: Claire Aubrey Huston
Engravers: J. Eissler and Edward M. Hall , , 8493 T, 8493 B , , Inverted Jenny

see also , , ~100 (1 plate) Error , - , May 13, 1918 , , 24¢ Rose & Blue
, , Curtis Jenny Biplane
Design: Claire Aubrey Huston
Engravers: J. Eissler and Edward M. Hall , , 8492 T, 8493 T , , US stamp 1918 24c Curtiss Jenny -C3

, , 3,095,955 , - , July 11, 1918 , , 16¢ Green
, , Curtis Jenny Biplane
Design: Claire Aubrey Huston
Engravers: J. Eissler and Edward M. Hall , , F8900 T , , 1918 -n -Curtis Jenny Biplane -C2

, , 3,793,987 , - , December 10, 1918 , , 6¢ Orange
, , Curtis Jenny Biplane
Design: Claire Aubrey Huston
Engravers: J. Eissler and Edward M. Hall , , 1955 T, Unused plate: 9164 , , 1918 -range rtis Jenny BiplaneC1

, , 2,134,988 Reference:

1920–1929

, August 15, 1923 , , 8¢ Dark Green
, , De Havilland Airplane Propeller and Radiator
Design: C. A. Huston
Engraved: H. Dawson and E. M. Weeks , , 14824–14827 L (four plates) , , 1923 Dark Green -Airplane propeller and radiator -C4

1923 Dark Green -Airplane propeller and radiator -C4

, , 6,414,576 , - , August 17, 1923 , , 16¢ Dark Blue
, , U.S. Air Mail Service Insignia
Design: C. A. Huston
Engraved: H. Dawson and E. M. Hall , , 14828-14831 L (four plates) , , 1923 Dark Blue U

, , 5,309,275 , - , August 21, 1923 , , 24¢ Carmine Rose
, , De Havilland DH-4 Biplane
Design: C. A. Huston
Engraved: J. Eissler and E. M. Hall , , 14840–14843 L (four plates) , , 1923 -- 24¢ Rose & Blue -- DH

, , 5,285,775 , - , February 13, 1926 , , 10¢ Dark Blue
, , Map of the U.S. & two planes
Design: C. A. Huston , , 18246 R, 18247 B , , US Airmail stamp 10c 1926 issue

, , more than 42,092,800 , - , September 18, 1926 , , 15¢ Olive Brown
, , Map of the U.S. & two planes
Design: C. A. Huston , , 18746 L , , Airmail Stamp C08

, , 15,597,307 , - , January 25, 1927 , , 20¢ Yellow Green
, , Map of the U.S. & two planes
Design: C. A. Huston , , 18898 R, F18892 B , , Airmail Stamp C09

, , 17,616,350 , - , June 18, 1927 , , 10¢ Dark Blue
, , Spirit of St. Louis , , 18999 R, 19427 , , Lindbergh Airmail Stamp c10

, , 20,379,179 , - , July 25, 1928 , , 5¢ Carmine & Blue
, , Beacon on Sherman Hill
Design: A.R. Meissner , , 19570 T, 19701 T (red)
19546 T (blue) , , Airmail stamp C11

, , 106,887,675 Reference:

1930–1939

, February 10, 1930 , , 5¢ Violet
, , Winged Globe
Design: Alvin R. Meissner , , 19944 L , , Airmail stamp 1930 C12

, , 97,641,200 , - , April 19, 1930 , , 65¢ Green
, , ''Graf Zeppelin'' over the Atlantic , , 20077 L , , Graf_Zeppelin_stamp_65c_1930_issue

, , 93,536 sold , - , April 19, 1930 , , $1.30 Brown
, , ''Graf Zeppelin'' over the Atlantic , , 20085 B , , Graf Zeppelin stamp $1 30 1930 issue

, , 72,428 sold , - , April 19, 1930 , , $2.60 Blue
, , ''Graf Zeppelin''
See also: 1930 ''Graf Zeppelin'' stamps , , 20092 R , , Graf Zeppelin stamp $2 60 1930 issue

, , 61,296 sold , - , August 19, 1931 , , 5¢ Violet
, , Winged Globe
Design: Alvin R. Meissner , , 20606 LL , , 1931 airmail C16

, , 57,340,050 , - , September 26, 1932 , , 8¢ Olive Bistre
, , Winged Globe
Design: Alvin R. Meissner , , 21030 UR , , US Airmail stamp - 1932 c-17

, , 76,648,803 , - , October 2, 1933 , , 50¢ Green
, , ''Graf Zeppelin'' , , 21172 B , , Zeppelin stamp, 50c, 1933 issue

, , 324,070 , - , June 30, 1934 , , 6¢ Dull Orange
, , Winged Globe
Design: Alvin R. Meissner , , 22135 UL , , 1934 US Air Mail Issue c-19

, , 302,205,100 , - , August 30, 1934 , , 16¢ Dark Blue , , Great Seal of the U.S.
(Air Mail Special Delivery) , , _{21313, 21313 F}
– Reprinted imperforate, 1935
, , 1934 airmail stamp CE1

, , 9,215,750 , - , November 22, 1935 , , 25¢ Blue
, ,

China Clipper ''China Clipper'' (NC14716) was the first of three Martin M-130 four-engine flying boats built for Pan American Airways and was used to inaugurate the first commercial transpacific airmail service from San Francisco to Manila on November 22, 193 ...

Design: Alvin R. Meissner , , ₂₁₄₇₃ , , 1935 airmail C20

, , 10,205,400 , - , February 10, 1936 , , 16¢ Carmine & Blue , , Great Seal of the U.S.
(Air Mail Special Delivery) , , _{21497 F, 21495 F, 21493} , , 1936 airmail stamp CE2

, , 72,517,850 , - , February 15, 1937 , , 20¢ Green
, , China Clipper
Design: Alvin R. Meissner , , ₂₁₆₂₂, , 1937 airmail C21 Twenty Cents

, , 12,794,600 , - , February 15, 1937 , , 50¢ Carmine
, , China Clipper
Design: Alvin R. Meissner , , ₂₁₆₂₄ , , 1941_airmail_stamp_C22

, , 9,285,300 , - , May 14, 1938 , , 6¢ Carmine & Blue , , Eagle and Shield , , , , Eagle&Shield US Airmail 6c 1938 issue

, , 349,946,500 , - , May 16, 1939 , , 30¢ Blue
, , Winged Globe
Design: Alvin R. Meissner , , _{F22384 T, 22381} , , 1932 US Trans-Atlantic Issue C-24

, , 19,768,150 Reference:

1940–1949

, June 25, 1941 , , 6¢ Carmine
(200 Subject Electric Eye Plates)
, , The Twin-Motored Transport Plane , , Following are shared among the 1941 issues:
40 plates between 22752-23349
& 22756-9 (4 plates) , , 1941 airmail stamp C25

, , 4,746,527,700 , - , March 21, 1944 , , 8¢ Olive Green
(200 Subject Electric Eye Plates)
, , The Twin-Motored Transport Plane , , 23126 , , 1944 airmail stamp C26

, , 1,744,878,650 , - , August 15, 1941 , , 10¢ Violet
(200 Subject Electric Eye Plates)
, , The Twin-Motored Transport Plane , , , , Stamp US 1941 10c air

, , 67,117,400 , - , August 10, 1941 , , 15¢ Brown
(200 Subject Electric Eye Plates)
, , The Twin-Motored Transport Plane , , , , 1941 airmail stamp C28

, , 78,434,800 , - , August 27, 1941 , , 20¢ Green
(200 Subject Electric Eye Plates)
, , The Twin-Motored Transport Plane , , , , 1941 airmail stamp C29

, , 42,359,850 , - , September 25, 1941 , , 30¢ Blue
(200 Subject Electric Eye Plates)
, , The Twin-Motored Transport Plane , , , , 1941 airmail stamp C30

, , 59,880,850 , - , October 29, 1941 , , 50¢ Orange
(200 Subject Electric Eye Plates) , , The Twin-Motored Transport Plane , , 22779 , , 1941 airmail stamp C31

, , 11,160,600 , - , September 26, 1946 , , 5¢ Carmine
, , DC-4 Skymaster , , 22778, 22779 , , 1946 airmail stamp C32

, , 72,517,850 , - , March 26, 1947 , , 5¢ Carmine
(400 Subject Electric Eye Plates)
, , DC-4 Skymaster , , 23486, 23588, 23973, 25422 , , 1947 airmail stamp C33

, , 971,903,700 , - , August 30, 1947 , , 10¢ Black
(200 Subject Electric Eye Plates)
, , Martin 2-0-2 over Pan American Union Building, Wash. D.C. , ,

23694 , , 1947 airmail stamp C34

, , 207,976,550 , - , August 20, 1947 , , 15¢ Green
(200 Subject Electric Eye Plates)
, , Lockheed Constellation over New York Skyline , ,
23683 , , C35 Airmail stamp 15c

, , 756,186,350 , - , July 30, 1947 , , 25¢ Blue
(200 Subject Electric Eye Plates)
, , Stratocruiser over the San Francisco Oakland Bay Bridge , ,
25615 , , Us airmail stamp C36

, , 132,956,100 , - , January 15, 1948 , , 5¢ Carmine , , DC-4 Skymaster , , , , Us airmail stamp C37

, , 33,244,500 , - , July 31, 1948 , , 5¢ Red , , New York City , , 23846, 23851 , , 1948 Red -New York City C38

, , 38,449,100 , - , January 18, 1949 , , 6¢ Carmine , , DC-4 Skymaster , , , , Us airmail stamp C39

, , 5,070,095,200 , - , May 11, 1948 , , 6¢ Carmine , , Alexandria Bicentennial , , 24085 , , USPostageStampAlexandriaVirginia

, , 75,085,000 , - , August 25, 1949 , , 6¢ Carmine , , DC-4 Skymaster , , , , Us airmail stamp C41

, , 260,307,500 , - , November 18, 1949 , , 10¢ Violet , , U.P.U. P.O. Building , , , , The United States 1949 Mi 601 stamp (75th anniversary of the UPU

, , 21,061,300 , - , October 7, 1949 , , 15¢ Ultramarine , , U.P.U. Globe and Doves , , , , The United States 1949 Mi 602 stamp (75th anniversary of the UPU

, , 36,613,100 , - , November 30, 1949 , , 25¢ Rose , , U.P.U. Boeing Stratocruiser , , , , The United States 1949 Mi 603 stamp (75th anniversary of the UPU

, , 16,217,100 , - , December 17, 1949 , , 6¢ Magenta , , Wright Brothers , , 24158 , , C45

, , 80,405,000 Reference:

1950–1959

, March 28, 1952 , , 80¢ Red Violet , ,

Diamond Head, Hawaii Diamond Head is a volcanic tuff cone on the Hawaiian island of Oahu and known to Hawaiians as Lēahi (). The Hawaiian name is most likely derived from ''lae'' (browridge, promontory) plus ''ahi'' (tuna) because the shape of the ridgeline res ...

, , 24592-4 (3 plate) , , 1952 airmail c46

, , 18,876,800 , - , May 29, 1953 , , 6¢ Carmine , , 50 Years of Powered Flight , , , , 1953 airmail stamp C47

, - , September 9, 1954 , , 4¢ Blue , , Eagle , , 25034-35, 40–41 (4 plate) , , 1954 airmail stamp C48

, - , August 1, 1957 , , 6¢ Blue , , U.S. Air Force, 50th Anniversary , , 25763 , , 1957 airmail stamp C49

, - , July 31, 1958 , , 5¢ Red , , Eagle , , 26052 , , 1958 airmail stamp C50

, - , July 31, 1958 , , 7¢ Blue , , Jet Silhouette , , 26046 , , 1958 blue Jet Silhouette C51

, - , July 31, 1958 , , 7¢ Blue , , Jet Silhouette , , – small holes , , C52

, - , January 3, 1959 , , 7¢ Blue , , Alaska Statehood , , 26225 , , C53

, - , August 17, 1959 , , 7¢ Red & Blue , , Jupiter Balloon , , 26392 , , C54

, - , August 21, 1959 , , 7¢ Rose , , Hawaii Statehood , , 26432 , , Hawaii statehood commemorative stamp 7c 1959 issue

, - , August 27, 1959 , , 10¢ Blue & Red , ,

Pan Am Games The Pan American Games (also known colloquially as the Pan Am Games) is a continental multi-sport event in the Americas featuring summer sports, in which thousands of athletes participate in a variety of competitions. The competition is held ...

, , 26413 , , 1959 - Blue & Red -Pan-Am Games -C56

, - , November 20, 1959 , , 15¢ Orange & Black , , Statue of Liberty , , 26482 , , C58

1960–1969

, June 10, 1960 , , 10¢ Green & Black , , Liberty Bell
Number issued: 39,960,000 , , 26630 , , C57-20854

, - , April 22, 1960 , , 25¢ Maroon & Black , ,

Abraham Lincoln Abraham Lincoln ( ; February 12, 1809 – April 15, 1865) was an American lawyer, politician, and statesman who served as the 16th president of the United States from 1861 until his assassination in 1865. Lincoln led the nation throu ...

, , 26563 , , Usairmail-stamp-C59

, - , August 12, 1960 , , 7¢ Red , , Jet Silhouette , , 26714 , , C060

, - , October 22, 1960 , , 7¢ Red , , Jet Silhouette , , , , C061

, - , June 28, 1961 , , 13¢ Red & Black , ,

Liberty Bell The Liberty Bell, previously called the State House Bell or Old State House Bell, is an iconic symbol of American independence, located in Philadelphia. Originally placed in the steeple of the Pennsylvania State House (now renamed Independen ...

, , 26970 , , Cancelled Liberty bell stamp 13c 1961 issue

, - , January 13, 1961 , , 15¢ Orange & Black , ,

Statue of Liberty The Statue of Liberty (''Liberty Enlightening the World''; French: ''La Liberté éclairant le monde'') is a colossal neoclassical sculpture on Liberty Island in New York Harbor in New York City, in the United States. The copper statue, ...

, , 26878 , , C063

, - , December 5, 1962 , , 8¢ Red
400 Subjects , , Jetliner Over Capitol Building , , – Booklet Pane of 5 + Label
28024 , , 1962 -Red -Jetliner Over Capitol Building -C64

, - , December 5, 1962 , , 8¢ Red
(Perforated 10 Horizontally) , , Jetliner Over Capitol Building , , , , Us-airmailstamp-C65

, - , May 3, 1963 , , 15¢ Red, Brown & Blue , ,

Montgomery Blair Montgomery Blair (May 10, 1813 – July 27, 1883) was an American politician and lawyer from Maryland. He served in the Lincoln administration cabinet as Postmaster-General from 1861 to 1864, during the Civil War. He was the son of Francis Pres ...

Number issued: 42,245,000
Design: Robert J. Jones , , 27466 , , Us-airmail-stamp-C66

, - , July 12, 1963 , , 6¢ Red , , Eagle
Design: V. S. McCloskey , , 27390 , , Us airmail stamp C67

, - , July 24, 1963 , , 8¢ Carmine & Maroon , ,

Amelia Earhart Amelia Mary Earhart ( , born July 24, 1897; disappeared July 2, 1937; declared dead January 5, 1939) was an American aviation pioneer and writer. Earhart was the first female aviator to fly solo across the Atlantic Ocean. She set many oth ...

Number issued: 63,890,000
Design: Robert J. Jones , , 27548 , , Usairmailstamp-C68

, - , October 5, 1964 , , 8¢ Blue & Red , , Robert Goddard
Number issued: 62,255,000 , , 27861 , , Stamp-robert h goddard

, - , March 30, 1967 , , 8¢ Brown , , Alaska Purchase
Number issued: 55,710,000 , , 29013 , , Usairmailstamp-C70

, - , April 26, 1967 , , 20¢ Multicolored , , Audubon "Columbia Jays"
Number issued: more than 50 million , , 29087 , , 967 -20¢ Multicolored -“Columbia Jays” -C71

, - , January 5, 1968 , , 10¢ Red , , Runway , , 29518 , , Usairmailstamp-C72

, - , January 5, 1968 , , 10¢ Red , , Runway , , , , Usairmailstamp-C73

, - , April 4, 1968 , , $1 Multicolored , , Airlift , , , , Usairmailstamp-1341

, - , May 15, 1968 , , 10¢ Red, Blue & Black , , 50th Anniversary of Air Mail , , 29673 , , Us airmail stamp C74

, - , November 22, 1968 , , 20¢ Red, Black & Blue , , Jet & "USA" , , 30510 , , Usairmailstamp-C75

, - , September 9, 1969 , , 10¢ Multicolored , , Moon Landing
Number issued: 152,364,800
Design:

Paul Calle Paul Calle (pronounced KAL-ee; March 3, 1928 – December 30, 2010) was an American artist who was best known for the designs he created for postage stamps, including 40 that were released by the United States Postal Service, and others for s ...

, , – red omitted
– tagging omitted
31378 , , 1969_moonlanding_commemorative_stamp_10c

1970–1979

, May 15, 1971 , , 9¢ Red , , Jet Silhouette , , 32946 , , 1971 airmail stamp C77

, - , May 7, 1971 , , 11¢ Red , , Jet Silhouette , , 33020 , , Usairmailstamp-C78

, - , November 10, 1973 , , 13¢ Red , , Winged Letter , , 34584 , , Us airmail stamp C79

, - , July 13, 1971 , , 17¢ Red, Green & Black , , Statue of Liberty , , 33096 , , 1971 airmail stamp C80

, - , May 21, 1971 , , 21¢ Red & Blue , , USA , , 33279 , , Usairmailstamp-C81

, - , May 7, 1971 , , 11¢ Red , , Jet Silhouette , , , , Usairmailstamp-C82

, - , December 27, 1973 , , 13¢ Red , , Winged Letter , , , , Usairmailstamp-C83

, - , May 3, 1972 , , 11¢ Multicolored , , City of Refuge , , 33463 , , 1972 airmail stamp C84

, - , August 17, 1972 , , 11¢ Blue, Black, Green, Red & Yellow , , Winter Olympics, Sapporo, Skiing , , 33322-6 , , 1972 airmail stamp C85

, - , July 10, 1973 , , 11¢ Multicolored , , Progress in Electronics , , 34192 , , 1973 airmail stamp C86

, - , January 11, 1974 , , 18¢ Black, Red & Blue , , Statue of Liberty , , 34931, 34959 , , Usairmailstamp-C87

, - , January 2, 1974 , , 26¢ Black, Red & Blue , , Mount Rushmore , , 34875 , , Usairmail-C88

, - , January 2, 1976 , , 25¢ Red, Black & Blue , , Plane & Globes , , 36957 , , 1976 airmail stamp C89

, - , January 2, 1976 , , 31¢ Red, Black & Blue , , Plane & Globes , , 36981 , , 1976 airmail stamp C90

, - , September 23, 1978 , , 31¢ Multicolored , , Wright Brothers , , , , , - , September 23, 1978 , , 31¢ Multicolored , , Wright Brothers , , , , , - , March 29, 1979 , , 21¢ Multicolored , , Octave Chanute , , 38856 , , , - , March 29, 1979 , , 21¢ Multicolored , , Octave Chanute , , , , , - , November 20, 1979 , , 25¢ Multicolored , , Wiley Post , , 39197 , , , - , November 20, 1979 , , 25¢ Multicolored , , Wiley Post , , , , , - , November 1, 1979 , , 31¢ Multicolored , , Olympics , , , ,

1980–1989

, October 13, 1980 , , 40¢ Multicolored , , Philip Mazzei , ,
(1980) – perf 10 1/2x11 1/2 , , , - , December 30, 1980 , , 28¢ Multicolored , , Blanche Stuart Scott , , , , , - , December 30, 1980 , , 35¢ Multicolored , , Glenn Curtiss , , , , , - , June 17, 1983 , , 28¢ Multicolored , , Olympics , , , , , - , June 17, 1983 , , 28¢ Multicolored , , Olympics , , , , , - , June 17, 1983 , , 28¢ Multicolored , , Olympics , , , , , -` , June 17, 1983 , , 28¢ Multicolored , , Olympics , , , , , - , April 8, 1983 , , 40¢ Multicolored , , Olympics , , – block , , , - , April 8, 1983 , , 40¢ Multicolored , , Olympics , , – block , , , - , April 8, 1983 , , 40¢ Multicolored , , Olympics , , – block , , , - , April 8, 1983 , , 40¢ Multicolored , , Olympics , , – block , , , - , November 4, 1983 , , 35¢ Multicolored , , Olympics , , , , , - , November 4, 1983 , , 35¢ Multicolored , , Olympics , , , , , - , November 4, 1983 , , 35¢ Multicolored , , Olympics , , , , , - , November 4, 1983 , , 35¢ Multicolored , , Olympics , , , , , - , February 13, 1985 , , 33¢ Multicolored , ,

Alfred V. Verville Alfred Victor Verville (November 16, 1890 – March 10, 1970) was an American aviation pioneer and aircraft designer who contributed to civilian and military aviation. During his forty-seven years in the aviation industry, he was responsibl ...

, , , , , - , February 13, 1985 , , 39¢ Multicolored , , Lawrence and Elmer

Sperry Sperry may refer to: Places In the United States: * Sperry, Iowa, community in Des Moines County *Sperry, Missouri * Sperry, Oklahoma, town in Tulsa County *Sperry Chalet, historic backcountry chalet, Glacier National Park, Montana *Sperry Glacier ...

, , , , , - , June 10, 1985 , , 44¢ Multicolored , , Transpacific 50th Anniversary , , , , , - , August 22, 1985 , , 44¢ Multicolored , , Junipero Serra , , , , , - , March 29, 1988 , , 44¢ Multicolored , , New Sweden Settling , , , , , - , July 14, 1988 , , 45¢ Multicolored , , Samuel P. Langley , , – overall tagging , , , - , June 23, 1988 , , 36¢ Multicolored , ,

Igor Sikorsky Igor Ivanovich Sikorsky (russian: И́горь Ива́нович Сико́рский, p=ˈiɡərʲ ɪˈvanəvitʃ sʲɪˈkorskʲɪj, a=Ru-Igor Sikorsky.ogg, tr. ''Ígor' Ivánovich Sikórskiy''; May 25, 1889 – October 26, 1972)Fortie ...

, , , , , - , July 14, 1989 , , 45¢ Multicolored , ,

French Revolution The French Revolution ( ) was a period of radical political and societal change in France that began with the Estates General of 1789 and ended with the formation of the French Consulate in November 1799. Many of its ideas are conside ...

, , , , , - , October 12, 1989 , , 45¢ Multicolored , , Pre-Columbian America , , , , , - , November 27, 1989 , , 45¢ Multicolored , , Future Mail Delivery , , , , , - , November 27, 1989 , , 45¢ Multicolored , , Future Mail Delivery , , , , , - , November 27, 1989 , , 45¢ Multicolored , , Future Mail Delivery , , , , , - , November 27, 1989 , , 45¢ Multicolored , , Future Mail Delivery , , , , , - , November 24, 1989 , , $1.80 Multicolored , , Future Mail Delivery Miniature sheet, , , ,

1990–2012

, October 12, 1990 , , 45¢ Multicolored , , Tropical Coast , , _{A1111 UL} , , , - , April 27, 1991 , , 50¢ Multicolored , ,

Harriet Quimby Harriet Quimby (May 11, 1875 – July 1, 1912) was an American pioneering aviator, journalist, and film screenwriter. In 1911, she became the first woman in the United States to receive a pilot certificate, issued to her by the Aero Club of Ame ...

, ,
_{S1111 LL}
– Perf 11.2
_{S2222 LR} , , , - , May 17, 1991 , , 40¢ Multicolored , , William T. Piper , , _{A1111 UL} , , , - , June 21, 1991 , , 50¢ Multicolored , , Antarctic Treaty , , _{S1111 UR} , , , - , October 12, 1991 , , 50¢ Multicolored , , Bering Land Bridge , , _{111111 LR} , , , - , 1993 , , 40¢ Multicolored , , William T. Piper , , _{S1111 LR} , , , - , May 12, 1999 , , 48¢ Multicolored , ,

Niagara Falls Niagara Falls () is a group of three waterfalls at the southern end of Niagara Gorge, spanning the Canada–United States border, border between the Provinces and territories of Canada, province of Ontario in Canada and the U.S. state, state ...

, , _{V11111 UL} (First of the Scenic American Landscapes SeriesScenic American Landscapes
/ref>), , , - , July 30, 1999 , , 40¢ Multicolored , , Rio Grande , , _{V11111 LR} , , , - , January 20, 2000 , , 60¢ Multicolored , , Grand Canyon , , _{B1111 UR}
– die cutting omitted error
_{B1111 UR} , , , - , March 6, 2001 , , 70¢ Multicolored , , Nine-Mile Prairie , , _{P11111 LL} , , , - , April 17, 2001 , , 80¢ Multicolored , ,

Mount McKinley Denali (; also known as Mount McKinley, its former official name) is the highest mountain peak in North America, with a summit elevation of above sea level. With a topographic prominence of and a topographic isolation of , Denali is the thir ...

, , _{V11111 UL} , , , - , May 20, 2001 , , 60¢ Multicolored , , Acadia National Park , , – 2001 year date, prephosphored, die cut 11.25 x 11.5 (B1111 UR)
– 2001 year date, overall tagging, die cut 11.5 x 11.9 (B2222 UR)
– 2005 year date (S1111 UR)
– Acadia error, printed on the backing paper (S1111 LR) , , , - , February 22, 2006 , , 63¢ Multicolored , , Bryce Canyon, Utah , , _{S22222 LL} , , , - , February 22, 2006 , , 75¢ Multicolored , , Great Smoky Mountains , , _{P11111 LR} , , , - , February 22, 2006 , , 84¢ Multicolored , , Yosemite National Park , , _{V11111 UR} , , , - , June 1, 2007 , , 69¢ Multicolored , , Okefenokee Swamp National Wildlife Refuge , , _{P11111 LL} , , , - , June 1, 2007 , , 90¢ Multicolored , , Hagatña Bay, Guam , , _{V11111 UR} , , , - , May 16, 2008 , , 72¢ Multicolored , , 13-Mile Woods, New Hampshire , , _{S11111 UL} , , , - , May 16, 2008 , , 94¢ Multicolored , , St. John, U.S. Virgin Islands , , _{V11111 LL} , , , - , June 28, 2009 , , 79¢ Multicolored , , Zion National Park , , , , , - , June 28, 2009 , , 98¢ Multicolored , , Grand Teton National Park , , , , , - , April 11, 2011 , , 80¢ Multicolored , , Voyageurs National Park , , , , , - , January 19, 2012 , , 85¢ Multicolored , , Glacier National Park , , , , , - , January 20, 2012 , , $1.05 Multicolored , , Lancaster County, Pennsylvania , , , ,

Notes on types

References

{{United States Postal Service

Airmail Airmail (or air mail) is a mail transport service branded and sold on the basis of at least one leg of its journey being by air. Airmail items typically arrive more quickly than surface mail, and usually cost more to send. Airmail may be t ...

Airmail stamps An airmail stamp is a postage stamp intended to pay either an airmail fee that is charged in addition to the surface rate, or the full airmail rate, for an item of mail to be transported by air. Airmail stamps should not be confused with airma ...

United States airmail stamps