Can Anyone Explain The Discoloration On This Dime?

It looks like it has been plated.

Id assume silver maybe steel it does kind of look like some steel cents

The letters are extremely bold but there were no proofs that year so I thought plated but it doesn't seem any more thick than regular

Back in my day as a kid, my mother worked for a dentist and had access to mercury. I would occassionally get some from her to play with; one of the most fun things to do was to rub it on silver coins. It made them look real shiny (sort of looks like your dime). I think the EPA and others frown on such behavior today.

jprine, amazing what he did as kids and we still have only one head on our shoulders. LOL

Hello,

Going on the assumption that this is not a valuable coin I personally would like to see a 'before scratched' and 'after scratched' very close-up side-by-side photo arrangement of a chosen area of the coin...

Even just a thin layer of paint could possibly chip off while electroplating's molecular bond would be less prone to this type of behavior.

In a nutshell via electrolysis electrons flow from an anode through the circuit of a system since they are attracted to an oppositely-charged cathode creating a much stronger molecular bond building upon a plated object etc.

In summary much more detail obviously exists for the electrolysis process which is beyond the scope of this thread but it would be nice see this particular surface under higher magnification just for yucks.

IMHO
mdpmedia