7/8" with metal back and fixed horizontal pin. Some small spots of oxidation on the metal back but the celluloid remains totally clean. No maker name but this appears to be of Australian origin and has simply the word "Copyright" on the bottom curl. Design shows palm trees at left, Arab architecture building in the background and a line of camels in a caravan in the foreground. Only example we've seen. Cello is essentially Mint. Morry Greener Collection.