Help - can you identify this dish?
I bought this earthenware dish some years ago in a charity shop. It has a white / pale grey underglaze with blue overglaze; there is a primitive-style design of a cockerel head, vase and flowers outlined in sgraffito and handpainted in vivid colours.
The impressed backstamp has a letter J and another letter / symbol / number. The mark is repeated in a simpler form on the right front of the dish. It could be "FJ", "JF", "7J", "J7" or something else I haven't yet thought about!
Another thing I find quite puzzling about this dish: while most of the design is painted carefully there are three blobs of slip on the left-hand side of the design which are quite crudely placed. It almost looks as if someone other than the artist who painted it "finished" it off.