I believe this chip is rare only because I had never seen it before picking it up. Let me know if it I'm wrong on the rarity.

I would sell for $15 plus $2 shipping or an equivalent trade

If you have Florida palms or sailing ship c&s to trade, I would trade Maltese cross for 4. The FP and SS chips are ultra common. I have 500 to 1000 of both chips

Does anyone have the green Maltese Cross. I'm curious.