Watch List notes:

World Medals, France, Napoléon III, Exposition Universelle de Paris, unnamed copper medal, 1855, by Oudiné et Caqué, laureate head of the Emperor left, rev. La France, radiant, crowns the figures of Art and Industry, LA FRANCE COURONNE L'ART ET L'INDUSTRIE, 68mm. (Divo 242), choice, virtually mint state; Exposition Universelle de Paris, the Palais de l'industrie, copper medal, 1855, by Caqué and Wiener, conjoined busts of Eugénie and Napoléon left, rev. façade of the building, 50.5mm. (Divo 250); Netherlands, Laurens Janszoon Coster (1370-1444), of Haarlem, believed by the Dutch to be the inventor of printing, his statue unveiled, copper medal, 1856, by S. G. Elion, the statue, rev. below rays, DISPVLSIS NEBVLIS FVLGET – ILLVSTRIOR, 74.5mm. (Dirks 779), second extremely fine, last nearly so (3)
Ex Baldwin's vault
Coster rivals Johannes Gutenberg as the inventor of moveable metal type. He is said to have printed with movable type as early as 1430, though definite proof of this claim is lacking.