Flattened thrown stoneware vase, 4 lines circular mark

Found 3 similar vases by same maker, can’t see mark in lines section of book but mark does look familiar.
6” tall, quite heavy piece, wax resist decoration

Here’s another one, looks slab built, quite heavy, with applied “decorative features” .
Same mark

I can't help you on this but these are very nice - just my thing ... like this one by Gustave Tiffoche (he's French by the way ) :

Really interesting shape and decoration. He’s a new name for me.