I can answer most all questions relating to US coins, tokens, and currency. I'm not strong on world coins or ancients. Primary field of expertise is errors and varieties. Over 55 years experience in coin collecting. Part time dealer since 1976. Employed by McDonnell Douglas/Boeing for over 34 years as an Industrial Engineer/Technical Specialist before retiring in 2002.
Worked weekends for "Lonesome" John in the late 1960's to mid 1970's processing error coins, packaging, and preparing orders. Worked with John Devine and Fred Weinberg on several California Error A Rama's in the early 1970's. Served as display judge at annual Error-A-Rama coin shows. Opened and operated mail order coin business DBA "CAL ERRORS" in 1976. Contributor to Alan Herbert's "Official Price Guide To Mint Errors" and Fivaz/Stanton "Cherrypickers' Guide". Worked Saturdays at Huntington Beach Coin Exchange 1980-1999. Had table and sold coins at a number of coin and gun shows in So CA, AZ and NV. Sell coins, tokens and currency on Facebook. Past "Errorscope" Editor. Presently CONECA Examiner.
ANA, CONECA, CWTS, NLG
Errorscope, Numismatic News, Civil War Token Journal, Error and Variety News
AA Degree LBCC pre Engineering, 1964 BS Degree CSULB Ind Technology, 1968
1st Place EAR Trophy for Civil War Token Errors, NLG Author of Year Award for best monthly coin column "Error News and Views" in small Numismatic paper, owned and published by Ray Anthony.
Understanding how coins and currency are made, and sharing my knowledge of errors and varieties with others.
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Not the best pic. Based on what I see, I'd say it's strike (machine) doubling. Check out the mintmark. In the 70's, mintmarks were placed (punched) into the die surface after the die was made. If the mm
Based on attached pics, I'd say this is post mint damage, or PMD. It appears to be a blob of solder added to coin. Key would be pic of other side. If "normal", not an error. Obverse side should show weakness
The better pics helped. This is a modified coin. Altered coins have no added numismatic value. The coin was "tapped" by some sort of a tool to "hammer" it down slightly in size, rolling up the rim to make
Based on pics, it appears to be post-mint damage, done after the coin was struck. Appears bent and damaged. Take to any major coin shop, they should be able to verify. There are 3 dies that work properly
Not sure which design of this dollar you have, but several dates/designs have been found with no edge inscription. You likely have an error coin that missed this operation. Here's an article on the 2009
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