Deltiology (from
Greek
Greek may refer to:
Anything of, from, or related to Greece, a country in Southern Europe:
*Greeks, an ethnic group
*Greek language, a branch of the Indo-European language family
**Proto-Greek language, the assumed last common ancestor of all kno ...
, , diminutive of , , "writing tablet, letter"; and , ) is the study and
collection of
postcard
A postcard or post card is a piece of thick paper or thin cardboard, typically rectangular, intended for writing and mailing without an envelope. Non-rectangular shapes may also be used but are rare.
In some places, one can send a postcard f ...
s. The word originated in 1945 from the collaboration of
Rendell Rhoades (1914–1976) of
Ohio
Ohio ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the ...
and colleagues at
Ohio State University
The Ohio State University (Ohio State or OSU) is a public university, public Land-grant university, land-grant research university in Columbus, Ohio, United States. A member of the University System of Ohio, it was founded in 1870. It is one ...
.
A biographical sketch of Rhoades's life by his wife Nancy was provided to the Canadian Friends (
Quaker
Quakers are people who belong to the Religious Society of Friends, a historically Protestant Christian set of denominations. Members refer to each other as Friends after in the Bible, and originally, others referred to them as Quakers ...
) Historical Association in 1994. Rhoades had responded to a contest by editor Bob Hendricks in ''Post Card Collectors Magazine'' to create a more scholarly name for the hobby of postcard collecting. 'Philocartist' was a term used in the early 1900s, possibly coined by the noted early philatelist
Fred Melville in his 1903 publication ''The A.B.C. of Stamp Collecting''.
In Vol. 3, No. 1, January 1945, the headline of ''Post Card Collectors Magazine'' read: "Official P.C. Name Disclosed thru Research" and continued "Thru the splendid efforts of careful research by Rendell Rhoades, (of Blanchester, Ohio) the authentic and official name of the Postcard Collectors has been discovered. Mr Rhoades is a Research Associate for Ohio State University, and upon being challenged to find a name for the Postcard Collectors thru several contests held by this magazine as well as by William Morris of New York City, he contacted Dr K.M. Abbott and Mrs Ethel Miller, two well-known authorities on word formation." They identified a word from the Greek language: "deltion" meaning small illustrated tablet, or card."
However, it took about twenty years for deltiology/deltiologist to first appear in a dictionary.
[''Postcard Collector's Magazine'': Postcard Enterprises Inc., Palm Bay, Florida, First Issue January 1976, page 15] Compared to
philately
Philately (; ) is the study of postage stamps and postal history. It also refers to the collection and appreciation of stamps and other philatelic products. While closely associated with stamp collecting and the study of postage, it is possibl ...
, the identification of a postcard's place and time of production can often be an impossible task because postcards, unlike stamps, are produced in a decentralised, unregulated manner. For this reason, some collectors choose to limit their acquisitions to cards by specific artists and publishers, or by time and location.
History
Deltiology appeared at the end of the 19th century, when the mass production of postcards began and received international distribution as the cheapest type of postal items. The first postcard was published in 1869, and by 1875, 231.5 million open letters were sent in the member countries of the
Universal Postal Union
The Universal Postal Union (UPU, ) is a specialized agency of the United Nations (UN) that coordinates postal policies among member nations and facilitates a uniform worldwide postal system. It has 192 member states and is headquartered in Be ...
.

In the late 19th to early 20th centuries, the first organizations of deltiologists appeared. Special magazines and
catalogs began to be published (in Germany, Austria-Hungary, France, Russia, Great Britain, the United States, Italy, Switzerland, Spain, etc.), international exhibitions took place (in
Leipzig
Leipzig (, ; ; Upper Saxon: ; ) is the most populous city in the States of Germany, German state of Saxony. The city has a population of 628,718 inhabitants as of 2023. It is the List of cities in Germany by population, eighth-largest city in Ge ...
,
Saint Petersburg
Saint Petersburg, formerly known as Petrograd and later Leningrad, is the List of cities and towns in Russia by population, second-largest city in Russia after Moscow. It is situated on the Neva, River Neva, at the head of the Gulf of Finland ...
,
Nice
Nice ( ; ) is a city in and the prefecture of the Alpes-Maritimes department in France. The Nice agglomeration extends far beyond the administrative city limits, with a population of nearly one million[Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...]
,
Florence
Florence ( ; ) is the capital city of the Italy, Italian region of Tuscany. It is also the most populated city in Tuscany, with 362,353 inhabitants, and 989,460 in Metropolitan City of Florence, its metropolitan province as of 2025.
Florence ...
,
Nuremberg
Nuremberg (, ; ; in the local East Franconian dialect: ''Nämberch'' ) is the Franconia#Towns and cities, largest city in Franconia, the List of cities in Bavaria by population, second-largest city in the States of Germany, German state of Bav ...
,
London
London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
, etc.), congresses of collectors and postcard publishers (in
Leipzig
Leipzig (, ; ; Upper Saxon: ; ) is the most populous city in the States of Germany, German state of Saxony. The city has a population of 628,718 inhabitants as of 2023. It is the List of cities in Germany by population, eighth-largest city in Ge ...
- 1896, 1910; in
Nice
Nice ( ; ) is a city in and the prefecture of the Alpes-Maritimes department in France. The Nice agglomeration extends far beyond the administrative city limits, with a population of nearly one million[auction
An auction is usually a process of Trade, buying and selling Good (economics), goods or Service (economics), services by offering them up for Bidding, bids, taking bids, and then selling the item to the highest bidder or buying the item from th ...]
s began to be held.

Since the beginning of the 20th century, deltiology has become one of the most popular types of
collecting
The hobby of collecting includes seeking, locating, acquiring, organizing, cataloging, displaying, storing, and maintaining items that are of interest to an individual ''collector''. Collections differ in a wide variety of respects, most obvi ...
, facilitated by the mass production of postcards of diverse topics (
geography
Geography (from Ancient Greek ; combining 'Earth' and 'write', literally 'Earth writing') is the study of the lands, features, inhabitants, and phenomena of Earth. Geography is an all-encompassing discipline that seeks an understanding o ...
,
ethnography
Ethnography is a branch of anthropology and the systematic study of individual cultures. It explores cultural phenomena from the point of view of the subject of the study. Ethnography is also a type of social research that involves examining ...
,
history
History is the systematic study of the past, focusing primarily on the Human history, human past. As an academic discipline, it analyses and interprets evidence to construct narratives about what happened and explain why it happened. Some t ...
, various types of
art
Art is a diverse range of cultural activity centered around ''works'' utilizing creative or imaginative talents, which are expected to evoke a worthwhile experience, generally through an expression of emotional power, conceptual ideas, tec ...
,
technology
Technology is the application of Conceptual model, conceptual knowledge to achieve practical goals, especially in a reproducible way. The word ''technology'' can also mean the products resulting from such efforts, including both tangible too ...
,
sports
Sport is a physical activity or game, often competitive and organized, that maintains or improves physical ability and skills. Sport may provide enjoyment to participants and entertainment to spectators. The number of participants in ...
,
portraits
A portrait is a painting, photograph, sculpture, or other artistic representation of a person, in which the face is always predominant. In arts, a portrait may be represented as half body and even full body. If the subject in full body better re ...
, etc.) and of high-quality art and printings, and by postal exchange between countries which expanded significantly with the strengthening of international relations.
The initial views on deltiology were somewhat different from the ones we have today. At the beginning of the 20th century, it was believed that only a postcard that had been mailed, and thus “fulfilled its function”, could be a worthy collectible. Moreover, many collectors would only be interested in a postcard with a view of a city or locality if it had been mailed from that city or locality. A blank postcard without a postmark was equated to a simple “picture”. Today, however, some collectors actually ignore cards with writing on them.
Deltiology is one of the most popular types of collecting. Postcards are usually valued in proportion to their age and rarity of their subject. Recently, an increased demand for postcards has provoked an increase in prices. For example, the price of certain scarce or historically significant postcards at online auctions can reach $1000, while most postcards would not reach $5.
Identification
There are some general rules to determining when a postcard was printed. Postcards are generally sent within a few years of their printing, so the postmark helps date a postcard. If the card is original and not a reprint, a postcard's original printing date can be deduced from such things as the fashions worn by people in the card, the era in which the cars on the street were made, and other time-sensitive clues. Postcards produced by the Curt Teich Company can be dated more exactly using the company-printed date code on the view side or within the stamp box if visible.
Vintage picture postcards are described as being from the "Golden Age of Postcards," which was generally 1898–1919. Modern 'chromes' are color photographs and thus differ from
photochromes generated from black and white photographs before c. 1915. Picture postcards are also differentiated based on other features: undivided backs are typical for c. 1901–1906 in the USA, prior to 1904 in Canada, and other years in other countries. Divided backs followed undivided backs: c. USA 1907, while white border cards are common from c. 1915-1930. The time of the linens was circa 1930–1950, and modern chromes appeared after 1940.
[
]
Practice
Postcards are collected by historical societies, libraries and genealogical societies because of their importance in research, such as how a city looked at a particular time in history and social history. Many elementary schools use postcards to teach children geography. Postcard
pen pal
Pen pals (or penfriends, penpals, pen-pals) are people who regularly write to each other, particularly via postal mail. Pen pals are usually strangers whose relationship is based primarily, or even solely, on their exchange of letters. Occasion ...
programs have been established to help children in language arts.
Deltiologists collect for various reasons. Some are attracted to the postcards themselves, then narrow down their interests. Others are interested in something in particular, such as ballet, and decide to collect ballet-related postcards to augment their interest in ballet.
Collectors may find picture postcards at home in boxes, attics, or scrapbooks, generate their own on trips and vacations, and acquire them from stores, flea markets, purchasing on the Internet, or other collectors.
[
A number of artists have become recognized for the creation of postcards, and certain publishers specialize in the production and printing of picture postcards.
]
Worldwide popularity
Worldwide, deltiology is the third-largest collecting hobby after stamp collecting and coin/banknote collecting.[ Postcard clubs may be found in many countries, and these clubs, as well as related organizations, frequently host postcard shows. Online postcard clubs have also become popular. They mainly focus on providing their members with catalogs and features for tracking their collections and interacting with each other.
Some websites popularize deltiology by providing opportunities to receive and send postcards to random people around the world.
]
Collection storage
There are three most popular ways to store postcards: index card, in albums and in envelopes. Until the 1990s, collectors mainly used cardboard albums, threading the corners of postcards in the slots. Nowadays, plastic photo albums with pockets are used more often, as a postcard can be inserted in the pockets completely. The album storage method ensures the safety of the collection in the best way, plus it is visually appealing. However, the disadvantages are that as the collection grows it takes up more space, the collection increases in weight (due to the albums), and the overall cost of all the albums needed to house a collection.
With the index card storage method, collections of postcards are located in boxes of the appropriate size. Such boxes can be made by the collector independently from plywood, hardboard and standard shoe boxes. The boundaries of each subsection of the collection are marked with separator cards, which have a format larger than that of the postcard. When it comes to envelopes, a collector can put different postcards in an envelope, dividing them by their themes. The main advantages of these methods compared to albums are compactness, money saving, and time saving (reducing the time spent on inserting and rearranging cards in albums). The main disadvantage is that postcards quickly wear out from constant sorting.
See also
* Postcrossing
Famous Deltiologists
* David Adler (architect)
* Ronnie Barker
Ronald William George Barker (25 September 1929 – 3 October 2005) was an English actor, comedian and writer. He was known for roles in British comedy television series such as ''Porridge (1974 TV series), Porridge'', ''The Two Ronnies'', ...
* Joe Berardo
* Jefferson Burdick
Jefferson R. Burdick (1900–1963) was an American electrician and a collector of printed ephemera, including postcards, posters, cigar bands, and other types of printed materials dating from the mid-nineteenth century to the early 1960s. He is ...
* Abdulla Dubin
* William Harwood (photographer)
* Paul Heaton
Paul David Heaton (born 9 May 1962) is an English singer-songwriter. He was the lead singer and main lyricist of the Housemartins, who had commercial success in the UK and other European countries between 1985 and 1988, releasing several singl ...
* Karl Jaeger (educator)
* Leonard Lauder
Leonard Alan Lauder (March 19, 1933 – June 14, 2025) was an American billionaire, philanthropist, and art collector. Together, he and his brother, Ronald Lauder, were the sole heirs to The Estée Lauder Companies cosmetics fortune, founded by ...
* John Margolies
* Lauro Moscardini
* Martin Parr
Martin Parr (born 23 May 1952) is a British documentary photographer, photojournalist and photobook collector. He is known for his photographic projects that take an intimate, satirical and anthropological look at aspects of modern life, in p ...
* Ron Scarlett
* Jane Scott (rock critic)
Notes
References
* Thomas M. Fürst (compiler, author), Rainer von Scharpen (translation). ''Picture Postcards - a Bibliography. Supplemented by a History of Deltiology'', Schwalmtal, Germany: Phil*Creativ, 2016, , 59 pp.
External links
Worldwide postcard exchange project
PostcardTree
30,000+ digitized and postally used postcards.
166,000+ Postcard catalog
{{Authority control
1940s neologisms
Collecting
Postcards