Hello, Question: Does anyone know the history and mintage of the Engelhard Prospector series? Particularly, the silver ones? Are there any books, articles, other stuff on how they came about, how many were made, and so on? I do know this: Silver ones minted from 1982 - 1987. Two types for 1984 (Big E and Eagle reverses). Three fractionals in 1985. Thank you.
I have several of these. A few years ago I tried to find out more about them but couldn't find a thing.
