I pulled this out of a junk bin. It looks like a 1950's something cent. Looks very close to the same size as a dime. I heard somewhere that kids back in the 50's or 60's would use different methods to reduce them down in size to a dime and use them in soda and candy machines. Not sure if this is one of them. Your thoughts?
I can remember some kids rubbing the edges on cement sidewalks to reduce their size, so maybe your assumption is correct.
I found this in a CoinStar-type machine reject bin: United States Cent 1946-S altered to pass as a dime It weighs 2.67gm, is 19mm in diameter, and the sides are smooth.
That's exactly what that is!!! I've found several and like collecting them. A very cool piece of numismatic history.
I don't know that there's a definitive way to tell. But a couple of things to consider: 1) The damaged areas don't look fresh, they look aged. Surely that could be altered intentionally but: 2) What's the point of doing this today? These aren't valuable or really even collected so what's the point of trying to make it look old? I assume these are all circa 1960's, +/- 5 years. Somewhere on the 'ole inter web I remember reading that there is a window where vending machines would take them and that can be used to help narrow the date made range.
Pay phones took them, parking meters took them, and vending machines. When things cost a dime, and the metal just needed to be the correct size. You could get a nice bottle of Orange Crush for a dime. (Or a worked penny.)
Ha ha, I'm a weirdo. I don't think they're collectable. At least I've never met anyone else who ever expressed any interest in them, but I think they're cool.
In 2010 President Obama pardoned a former marine who plead guilty to "coin mutilation" in 1963 for doing this. https://www.cnn.com/2010/POLITICS/12/03/obama.pardons/index.html?hpt=T2