THAILAND. 50 Baht, BE 2517 (1974). Rama IX. NGC PROOF-69 Ultra Cameo.
KM-Y-102a. Mintage: 9,885. Conservation series: Sumatran rhinoceros. Supremely frosted and appealing, this nearly-flawless specimen dazzles with highly mirrored fields and an intensely argent nature to the devices.
Estimate: $200 - $300