Thailand
Rama IX gold Proof "White-Eyed River Martin" 5000 Baht BE 2517 (1974) PR67 Ultra Cameo NGC, British Royal mint, KM-Y104. Proof mintage: 623. Conservation series. Displaying delightfully silky devices and a complete cameo effect.
https://coins.ha.com/itm/thailand/thailand-rama-ix-gold-proof-white-eyed-river-martin-5000-baht-be-2517-1974-pr67-ultra-cameo-ngc-/a/3084-30366.s?type=CoinArchives3084
HID02906262019
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Estimate: 3000-4000 USD