Thanks for jogging my memory. It's actually an ICA - "Postcard" Trix I believe is the model, with a 135 f6.8 Hekla lens. I think I have a half dozen film holders for that one. I have another ICA - their version of the Maximar - I think equivalent to the /7 Zeiss model. The latter once belonged to the architect of the Munich city hall ( at least based on the owner's plate on the side).