Nice 57-D with Machine Damage Doubling and Die Chips

rmpsrpms

Not a valuable coin, but has interesting second "strike" that caused flats on the features. This phenomenon happens quite often, and is often confused with true die doubling.

ifthevamzarockin

Outstanding photos!

Cool coin!

Oldhoopster

Never thought I'd say it, but the mechanical doubling looks nice. I would put it in a 2x2 and keep it.

jesbroken

A keeper. Great pics.
Jim

ricko

They are great pictures and a really classic example of the issue. Cheers, RickO

JeffersonFrog

Valuable is relative, but I like your coin, and your close-up pictures are fabulous. A full-coin pic would be interesting to see if the doubling is visible without a loupe.

Also, there have been zillions of mechanical/machine doubling posts on these Boards, but I find the excess metal that got pushed into the 9 and 5 crevices (the die chips?) to be unusual. Very cool, two thumbs up, a 10 from the Russian judge, A+, ... Thanks for sharing.

rmpsrpms

Thanks for the comments.

The die chips on the 9 and 5 are due to the die being damaged. Normally there are "bumps" on the die that pushes-in the coin metal, creating depressions on the "9" and "5" of the coin. On this die these bumps have broken out, and in fact they broke fairly deep into the die metal. You can see this in the 3D rendering, which shows the coin metal raised above the level of the high points of the "9" and "5", indicating that the chips in the die broke deeper than these features.

If I invert the 3D rendering, I can create a "die view" which shows what the die looked like. This is a good visual diagnostic tool since it emphasizes the die surface rather than the features. In this case, it shows very clearly the broken-out areas of the die that created the "die chips" we see on the coin:

asheland

I’ve also got a 57-D 🤓

rmpsrpms

Are there any known RPMs from Dahlonega mint?