P mint but looks like silver,, no copper layer. Weight is only 5.9 grams No information about this Quarter other than S mint being silver..
Plating is considered Damage thus it is only worth face value. It could have been a school experiment or mamy other reasons. Also Many companies plate coins such as merrick mint.
Some of the TV hucksters came up with the idea of selling the lower-grade uncirculated coins in sets with very, very thin layers of gold, silver and platinum at a substantial premium. Once the suckers finally discovered that the coins were not worth more than face value, they dumped a lot of them back into the marketplace. Chris
likely platinum plated though, I really don't find any business that's plating the quarters in Silver, it's either gold or platinum.
It could be. The reason is, any planchard being caught in the planchard machine systems and then coming loose later. This later being mixed with clad planchards and then minted later. Too many people today assume that it cannot be done. Think, of the processes that it takes to produce a single coin. Keep an open mind.