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Reeding is a technique wherein a number of narrow ridges called "reeds" are carved or milled into a surface.The Free Dictionary: "Reeding"
/ref>Dictionary.com: "Reeding"
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In
/ref> Some gold and silver coins were reeded to discourage clipping, i.e. scraping off the precious metals from the edge of the coin, to maintain its stated value in precious metal. This practice was made more difficult through the implementation of reeding by
In
/ref> and is the opposite of fluting.
/ref>
Reeding is a technique wherein a number of narrow ridges called "reeds" are carved or milled into a surface.The Free Dictionary: "Reeding"/ref>Dictionary.com: "Reeding"
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Numismatics
In numismatics
Numismatics is the study or collection of currency, including coins, tokens, paper money, medals and related objects.
Specialists, known as numismatists, are often characterized as students or collectors of coins, but the discipline also inclu ...
, reeded edges are often referred to as "ridged" or "grooved" (American usage), or "milled" (British usage). Some coins, such as United States quarters and dimes, 1 euro
The 1 euro coin (€1) is a euro coin with a value of one euro. It is made of two alloys: the inner part of cupronickel, the outer part of nickel brass. All coins have a common reverse side and country-specific national sides. The coin has be ...
, Australian 5, 10, 20 cents, 1 and 2 dollars, as well many other current coins, have reeded edges.
One reason for having reeded edges was to prevent counterfeiting.Why do some coins have ridges around the edges?/ref> Some gold and silver coins were reeded to discourage clipping, i.e. scraping off the precious metals from the edge of the coin, to maintain its stated value in precious metal. This practice was made more difficult through the implementation of reeding by
Isaac Newton
Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, physicist, astronomer, alchemist, theologian, and author (described in his time as a " natural philosopher"), widely recognised as one of the g ...
in 1698, during his time as warden of the Royal Mint
Warden of the Mint was a high-ranking position at the Royal Mint in England from 1216 to 1829. The warden was responsible for a variety of minting procedures and acted as the immediate representative of the current monarch inside the mint. The role ...
.
Another benefit of certain coins having reeded edges is that it helps the visually impaired
Visual impairment, also known as vision impairment, is a medical definition primarily measured based on an individual's better eye visual acuity; in the absence of treatment such as correctable eyewear, assistive devices, and medical treatment� ...
identify different coin denominations by sense of touch alone.
This dual purpose of reeding is sometimes made explicit on the milled edges of coins themselves. For example, many issuances of the British pound coin
The British one pound (£1) coin is a denomination of Coins of the United Kingdom, sterling coinage. Its obverse bears the Latin engraving ELIZABETH II D G REG () F D () meaning, 'Elizabeth II, by the grace of God, Queen, Defender of the Faith ...
have historically had their edges inscribed with the Latin
Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power ...
phrase '', an adaption from Vergilius' Aeneid
The ''Aeneid'' ( ; la, Aenē̆is or ) is a Latin Epic poetry, epic poem, written by Virgil between 29 and 19 BC, that tells the legendary story of Aeneas, a Troy, Trojan who fled the Trojan_War#Sack_of_Troy, fall of Troy and travelled to ...
meaning 'an ornament and a safeguard'.
Furniture
In furniture
Furniture refers to movable objects intended to support various human activities such as seating (e.g., stools, chairs, and sofas), eating ( tables), storing items, eating and/or working with an item, and sleeping (e.g., beds and hammocks) ...
, reeding is sometimes used around bedposts, and the legs of tables and chairs. Its use in this fashion was inspired by Greek and Roman architectural styles,"reeded leg"/ref> and is the opposite of fluting.
Architecture
Inarchitecture
Architecture is the art and technique of designing and building, as distinguished from the skills associated with construction. It is both the process and the product of sketching, conceiving, planning, designing, and constructing buildings ...
, reeding is a form of molding usually found on columns, and is sometimes considered to be synonymous with gadrooning.Encyclopædia Britannica: "Fluting and Reeding"/ref>
See also
*Knurling
Knurling is a manufacturing process, typically conducted on a lathe, whereby a pattern of straight, angled or crossed lines is rolled into the material.
Etymology
The terms ''knurl'' and ''knurled'' are from an earlier ''knur'' ‘knot in wo ...
* Milled coinage
*Spline (mechanical)
Splines are ridges or teeth
on a drive shaft that matches with grooves in a mating piece and transfer torque to it, maintaining the angular correspondence between them.
For instance, a gear mounted on a shaft might use a male spline on the sha ...
References
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