BHM 64.
19mm. White metal. Unsigned.
Obverse with head of George III with plain coat and long hair, reverse with bust of Queen Charlotte.
Nearly Very Fine and excessively rare.
BHM gives this medal a rating of RRRR with a footnote stating 'The only example that I have encountered is in a private collection; its rarity may be accounted for by its poor quality, most specimens having been destroyed or lost.