Watch List notes:

COMMEMORATIVE MEDALS, Medals by Subject, Art, France, "Hommage aux Graveurs" (tribute to medallists), Uniface Silvered-bronze Proof Striking of a Plaquette, 1891, by Alphonse Eugène Lechevrel (1848-1924), signed with both name and monogram, naked girl writes on scroll attached to tree, filled with the names of the great French medallists of the Art Nouveaux period, to left the implements of minting, 79.5mm x 57.5mm (MeF 505; Marx - used as cover illustration; BDM III, 361). Nearly extremely fine and rare.
The list begins "OVDINE / J C CHAPLAIN / O ROTY ...". The plaquette is normally struck with a reverse depicting an olive branch with space to right for an inscription.

Estimate: £150-200