I do happen to have that
catalog (F&S #1 - the first of their mail bid sales). The coin is illustrated in the plates and is certainly the same item. They list it as 1.13g which is within an expected difference in
scales. It realized $152 = a 10% buyers fee. I agree with Pete that there is nothing here that looks fishy.
I will point out that F&S graded the coin as VF and called it 'Scarce'. Now it is aXF and
Rare. Some of us who have collected a while will get a chuckle out of this and go so far as to predict that this coin will reach 'Mint State' and 'Unique' in another 17 years. Any way you label it, I'd call it a very nice coin.