Czechoslovakia
Socialist Republic gold Proof Pattern? "Jan Evangelista Purkyne" 100 Korun 1969 PR67 Ultra Cameo NGC, Kremnitz mint, KM-Unl. An unlisted possible pattern issue struck to mark the 100th anniversary of Purkyne's death. Lustrous and highly reflective, with a full cameo contrast.
HID02901242017
Estimate: 1000-1200 USD