Bearded head of Leopold II left, legend 'Leopold II King of the Belgians' in Dutch around.

Depicts Leo Belgicus with a paw over the stone slab (Constitution of Belgium). The motto "Unity makes Strength" in French above, value and engraver's name below. The date on the left.

The Leo Belgicus (Latin for Belgic Lion) was used in both heraldry and map design to symbolize the former Low Countries (current day Netherlands, Luxembourg, Belgium and a small part of northern France) with the shape of a lion. The names derived from the Belgae are now mostly identified with the country Belgium.

The Constitution of Belgium dates back to 1831. Since then Belgium has been a parliamentary monarchy that applies the principles of ministerial responsibility for the government policy and the Trias Politica. The Constitution established Belgium as a centralised unitary state.