Great Britain
Elizabeth II Mint Error - Struck on Foreign Flan Florin 1967 MS65 NGC, cf. KM906, cf. S-4146. 9.3gm. Struck on a Malaysia 50 Sen flan, exhibiting a security edge. A gem-level error, very rare and unusual with abundant silvery luster and a pristine strike.
From the Engelen Collection of World Coinage
HID02901242017
Estimate: 500-700 USD