I purchased these years back, from a private party. They had auction stickers (residue can still be seen where I removed them) but no real identification. 

A primitive pair of wall plaques / trays, each with a duck portrait. The trays have holes for hanging wires on the backs.

Quimper style paintings.

I am not sure of the material used, it appears to be pottery but heavy and some of the finish, on the rims, has flaked off. 

See photos, as is.

Nice decorative pieces, approx. 11-1/2" long, 7-1/2" wide and approx.. 1-1/4" deep.

Thank you for looking!