Watch List notes:

COMMEMORATIVE MEDALS, WORLD MEDALS, France, 50th Anniversary of the Founding of the Christofle Company, 1893, Silver-plated Bronze Plaquette, by Oscar Roty, in the centre of a triptych of images Christofle is awarded a prize cup by Science, rev two artisans, Roty and Tasset, at work, 59mm x 95mm (Maier 97). Extremely fine.
Roty designed cutlery for the Christofle Company and here immortalises himself (right), along with fellow medallist Paulin Tasset (left) in the reverse triptych.

Estimate: £150-180