All it would take is one of his buyers get into it with the cops, the cops realizing the art, the buyer rolls on the seller to save himself. I got to go with melting it.
How do you sell unmarked gold ingots? Plus, the value isn’t just the gold itself, but the antiquity. It’s not that hard to sell an antiquity one piece at a time.
Sell one a month and you’re doing well. Keep your job, use the money to save and save. Retire in ten years or so and no one’s the wiser. Too much greed ruins the deed.