Yes but it's not simple with the combination of 3 erratic values, btc, gold, fiat
The whole lot at 0,65 would cost 39 BTC, I can offer a discount of 1BTC that is more than 2%
When they're in your hand it's very clear they're made of gold but how can I guarantee it in advance?
I have a copy of the invoice when I bought them but I could have forged it, do you have any suggestion?
I'm also worried that the buyer could claim that the parcel contained only a brick and ask for a refund, or
the buyer can be worried too that I send him a brick. I propose that the buyer agrees to film with his smartphone
the opening and inspection of the parcel's contents, this will settle any dispute.