~4 1/8" diameter, ~.300" thick, 2 1/2 oz. The probability that there were many of these 'minted' seems to be large...but try as I might, I can find no reference to them. It is in pristine condition, an' I'll offer it on eBay if I can get enough information to describe it with accuracy. I'm hoping some of you have seen similar, or even this one...an' can direct me to further illumination. Thanks for lookin'!