I would think he'd get more than 0.69 BTC and would be surprised if he didn't. The last brass 0.5 BTC Casascius coin I sold was for 0.76 BTC in a private sale with someone on these forums and they were glad to pay it in order to get a coin from someone they trust. If someone trusts Chi and has been looking for one of these coins, I could see it getting a premium. Maybe even in the 0.8 BTC range, but it all depends on finding the right buyer. Some people still mention things like spot silver price when negotiation over these coins. Good luck!
Here here but premiums go down when btc is high. What was btc->USD when you sold? Just for reference. Thanks OG
DM sent Chibit.