Thank you. I was unaware that the coin weighed more than 1 troy oz.
One can set up a “Precious Metals IRA” ...
PMs placed in IRAs must be 99.9% (or better) purity.
American Eagles are legit for a PM IRA.
The old silver coins (pre-1964) were 91% purity, so old silver coins CAN’T be used in PM IRAs.
IIRC - there are also old US gold coins that, like South African Krugerands, are around 91% purity - and therefore not eligible for inclusion in a PM IRA.