THAILAND, Y# 169 , Silver, 250 Baht , BE2526-1983 , Proof, I.Y.D.P. Very rare silver proof coin in Superb Gem Proof condition in NGC Scratch Resistant Holder! Hard to get in so high grade! Rarity! Two Pieforts of this type graded by NGC only PF66 with a mintage of 500 pieces were sold at Stacks Bowers auction in 2019 each for 4800 USD hammer plus Buyer’s Premium 20%. Mintage of this coin is only 233 Proofs!