I was struck by this stunning plate in a friend's house, and she kindly let me take a photograph. The ruler on the left will give an indication of the size - it is 1ft/30cm long.
I could not see any indication of maker - nor was there any obvious signature. My first thought that it is Czech, and possibly inter-war period. The owner has only recently acquired it, and has no idea of its previous history. Can anyone help please with an identification?