I'll try to get some photos later. It's a 6.5 x 9cm with a 10.5cm Syrconar-Doppelanastigmat 1:4.5 Hofmeister, Jena in a Compur shutter. The only marking on the outside is a small round logo that reads "Walter Talbot Berlin"--thought the top part of it is missing, I think it says Walter.