THAILAND. 50 Baht, BE 2517 (1974). Rama IX. NGC PROOF-69 Ultra Cameo.
KM-Y-102a. Mintage: 9,885. Conservation series: Sumatran rhinoceros. A nearly perfect Ultra Cameo, with dazzling, frosted devices and reflective fields. This Gem is certainly an eye-catcher.
Estimate: $200 - $300