Check it out, it ends soon! https://www.ebay.com/itm/353511056350?hash=item524ee6a3de:g:75gAAOSw2CVgrtZS&LH_Auction=1
What are the signs its fake? All I see is a high price for a spotted eagle, from a seller with very low feedback score. I'd avoid it for those 3 reasons, and never suspect its fake (although, I don't collect these).
Looks alright to me. As physics fan said though, it's got milk spots all over it. And someone's fingerprints too. TBH I would pay melt and send it off to be made into a hand poured bar.