@ Hondo: it is three step procedure. I say three because is use three ingredients, plus water and heating. If you deep before silver in the cleaning solution (for jewelry, silver), yes you has silver molecules in that solution. In general those solutions are base on cyanide of potassium.
Update: Went to a higher end jeweler today. not reputable coin shops in my area It is silver Weight is 2 penny weight which converts to 3.11 grams Working on better photos
3.11 grams is the exact target weight for a 1959 copper Lincoln Cent. If it were struck on a silver dime planchet, the weight would be 2.5 g. Electroplating one with silver would add only a few milligrams of weight.
Inordinately fascinated by bits of metal with strange markings and figures
It's not silver. It's a high school experiment that's been around for decades. There are hundreds of videos online if you want see how it's made. Your coin is plated .nothing more. Here is one way of many ways to do it.
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