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I think this might be struck on a thick stock, but then again it might Be a well struck rim.
By current images I'm thinking a well struck rim. If the edge was altered and push inward, could affect the thickness or height of the rim.
Can't say this applied for all years, but the US Mints current specification on cent thickness is 1.52 mm. My observation this is not always the case on business strikes. Seems high production volume equals the need to cut corners, meaning machines speed or applied pressure adjustments to maximize production, which reflects often on the edge and the rims appearance.
Also take in account was the planchet square to start and if the upset process normal. Thanks, Doug.
https://www.usmint.gov/learn/coin-a...ecifications
Edited by Halo1st
12/07/2018 3:33 pm