Courland. Ernst Johann Biron gold Ducat 1764-ICS AU53 NGC, Mitau mint, KM30, Fr-3, Kop-4103. A well struck example with light evidence of handling as noted by the grade. A classic rarity and desirable type. The only example certified by either PCGS or NGC, and the sole piece we could find having been offered at auction since 2012.

HID09801242017

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