Set of Three French Stoneware Plates

This is a listing for a set of three vintage French stoneware plates.

They are vintage and show signs of wear. They contain discolorations, imperfections, scratches, and crazing.  One of the plates contains a slight crack on the edge that doesn't go all the way through the plate.  It looks like an imperfection. Each one contains the same maker's stamp.   They are unusually thick.   

Approximate measurements 

8 1/4" diameter