Watch List notes:

The Master IO FF, Ariadne on Naxos, bronze plaquette, 64mm (Molinier 130-132; Bange 648; Kress 97, fig. 128; Scaglia VI.7 – 3 variant B; Ashmolean 277), cast with a wide border, pierced, a very fine contemporary cast For a similar example with a wide rim (but gilded) see Patrons of the National Galleries of Scotland, catalogue 1, no. 35.
Estimate: 700-1000 GBP