You are here:

Coin and Paper Money Collecting/Please look at this penny


strange penny
strange penny  

strange penny
strange penny  
It's almost twice the thickness but the same diameter as a normal penny but .3 grams heavier aswell.

Looks like the die went kaplooet or something else...

HOW CAN A PENNY LIKE THIS COME ABOUT.....If you look above united states the original penny rim is visible aswell as the thinner damaged add on rimedge...

How do I go about getting this thing looked over for authenticity...?

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 to strike a coin. The reverse die is usually stationary, the obverse die is the striking or movable die and the retaining collar keeps the blank in place as it is struck.The variance in weight is not significant.

Coin and Paper Money Collecting

All Answers

Answers by Expert:

Ask Experts


Ronald Fern


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.


Errorscope, Numismatic News, Civil War Token Journal, Error and Variety News

AA Degree LBCC pre Engineering, 1964 BS Degree CSULB Ind Technology, 1968

Awards and Honors
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.

©2017 All rights reserved.