I am unable to photograph the MARK, but will describe it to the best of my ability. I hope someone has the same item and can help me.
http://home.comcast.net/~johnsiep/AGFA/wine1.jpg
The mark consists of four different pieces. The first looks like three vertical items, perhaps the first and last are the animals often seen on British pottery. The next two lMAY be a G P and the last could be an M. I would appreciate help.