coins rare

I have a few X-Metal coins I’m looking to move. All prices include standard shipping. 1997 Romeo - $35 1999 XX - $35 1999 Juliet - $20 2001 Penny Mad Science - $70 CONUS only. PayPal G&S or Venmo if preferred

Not sure if someone want this... SI Coin with drilled hole and a welded ring (without keys of course) for sale. 😄 Got this, as it is, back in the days for a military coin check challenge. But I just put it on a keyring for this photo. I didn't used it daily, just to keep the coin cool...

For sale coins: Half X = 100$ ( Mint condition ) Penny coin = 50$ ( Has patina/cleanable) Thank you for checking!

Selling the the coins pictured below. Asking ***Sold*** for each Mars coin and ****SOLD**** Half-X coin. These prices include CONUS shipping only. These coins have the normal factory scratches or imperfections.

I received a coin the other day and found out that it is actually quite rare. Supposedly it's pretty valuable. I'm not looking to sale it but I would like to know what it's worth.