Great Britain
William IV white-metal "Reform Bill" Medal 1831, by T. Halliday, Eimer-1244, 45 mm, MS62 PL NGC, light abrasions but the concept is the prize here, a medal promulgating reforms of various unfair laws and opposing colonial slavery; pictured on the obverse with the king are proponents of the reform, including Earl Grey. Tea, anyone? A neat medal.
Estimate: 300-500 USD