Watch List notes:

COMMEMORATIVE MEDALS, British Historical Medals, George IV, Map of the World, White Metal Medal, c.1820, believed to be by T Halliday for Thomason, the Eastern and Western Hemispheres to either side, Australia named as "NEW HOLLAND", 74mm (BHM -; Eimer 1139). Extremely fine, only a few signs of porosity, very rare.

Estimate: £300-500