1990 P Penny - Improperly Annealed - Coin Community Forum

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Author	Replies: 5 / Views: 967
SwoonPoon New Member United States 23 Posts	Posted 04/05/2025 10:28 pm Is this penny improperly annealed? Are the letters/numbers being pressed in another error, or does that commonly follow with improper annealing? Report this Post to the Staff

Errers and Varietys Bedrock of the Community United States 73760 Posts	Posted 04/05/2025 10:46 pm Just a damaged coin. PMD. Possibly a Dryer Coin. Not Improperly Annealed. https://www.error-ref.com/improper-annealing/ From error-ref: Quote: Definition: For decades error collectors have puzzled over copper-nickel and Cu-Ni clad coins struck on planchets with a layer of copper on the surface. In times past, these errors were called "copper wash" and "sintered plating" errors. The 1962 nickel shown below is a typical example. It has a thick layer of peeling copper on the right side of the obverse face. The rest of the obverse face and all of the reverse face is black. Copper, red, black, brown, and gray are colors typically found in these errors. Coverage can be complete or incomplete. The copper can range from a slight tinge to a thick coating. Errers and Varietys. Edited by Errers and Varietys 04/05/2025 10:48 pm Report this Post to the Staff
BStrauss3 Pillar of the Community United States 4588 Posts	Posted 04/05/2025 11:33 pm Starting mid-year 1982, the composition of the cent changed from copper (technically bronze due to up to 5% of Zinc in the alloy) to copper-plated zinc. What you are seeing is some of the copper plating being worn off exposing the zinc core. -----Burton 50+ year / Life / Emeritus ANA member (joined 12/1/1973) Life member: Numismatics International, CONECA Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club Owned by three cats and a wife of 40+ years (joined 1983) Author: 3rd Edition of the Sample Slabs book, https://www.sampleslabs.info/ Report this Post to the Staff
Marv65 Bedrock of the Community United States 10485 Posts	Posted 04/06/2025 12:40 am Improperly trapped in a dryer Just a Dryer Coin. Report this Post to the Staff
Dearborn Moderator United States 94932 Posts	Posted 04/06/2025 12:00 pm I see DDD on this cent, also not too sure of a Dryer Coin (unless it is an early one) It would appear that the highest parts of the design elements have extensive (possibly intentional) wear on it exposing the zinc core. Collecting since 1972. Learning from then on "Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin 7070 type set coin count: 51/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Sacagawea Dollars Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels 1938-2005 Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
jbuck Moderator United States 187702 Posts	Posted 04/07/2025 11:22 am PMD regardless of cause. Coin Collector Since 1978 Avatar Old Avatar 7070 Eisenhower Australia Canada World CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
	Replies: 5 / Views: 967

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