Found out this week that at least one grade school where one of my grandchildren attends, still teaches basic chemistry with plating pennies as one of many exercises.
Zinc plated Zlincoln. Proper application of heat will give it a gold color.
thats a neat find. my friend got one a month ago or so while we were out. his was a 56 wheat. gave us a nice little puzzle to figure out. then i remebered that expirement from middle school. probably 2002 when we did that project in middle school..