THAILAND. Mint Error -- Struck on Silver Planchet -- 9000 Baht, BE 2547 (2004). PCGS MS-69.
cf. KM-Y-492. Struck to commemorate the 200th anniversary of the birth of King Rama IV. A nearly flawless example of this commemorative issue that was struck on a silver planchet instead of gold.
Estimate: $400 - $600