The mark on the back is pretty worn, and I don't have a strong enough magnifier to see it clearly. I used to think it was all letters, but looking as close as possible, I may have been looking at the incised spaces, and should have been looking at the raised marks. In that light, the first 2 marks appear to be either a face or a letter, then another one like an animal, but could also be a C next to a K or X. Next, there is an E or could be part of a mark, then there appears to be an L after that, but it is not struck as deep as the other letters, then either a colon or a B, then a P or R, and the last letter is an O or a face or something similar. I can't determine if the mark is set in a rectangular box or it is just the shape of the letters. I left the clay residue in the mark in hope it will make it stand out better.
Thanks in advance for your assistance and I hope I can be of help to someone else.
Roxanne


