I know the "proof" medallions are limited to the demand of a year,and can go higher in value. I bought one in the past, or so I thought. when I listed it on
ebay I was informed there are two versions, the proof medallions which can go up due to low mintage, and a proof-like version, the first with a serial number on the edge, the other with a reeded edge. How can I find a source of the less expensive ones that I can better afford?