I know that . .3617 ounces = 10.2540225 grams
The bad thing for the numismatic value of the coin is 10 million proofs were minted. So in other words I guess it basically has no numismatic value. Just mainly the silver content. Again probably why they are able to offer it below spot. It will probably only be worth its silver content. Specially that we don't have the Gerorge Washington proof boxes they came in from the US mint. Kind of sad really to think such a pretty proof coin will never be more valuable then its weight in silver content in bullion form. Still a good deal for a pretty coin though.