I've got a somewhat beat-up 8.25" f6.8 Goerz Dagor that I paid $40 for at an antique store. Its shutter only fires at about 1/100th for all marked speeds, it is missing a flange (about 45mm diameter on external threads), and the rear cell has some rainbow-ish seperation covering about 10% of the lens diameter. The lens serial number is 395187, marked on both cells. I'm going to improvise a lensboard--if it is at least as sharp as an old uncoated Tessar of the same focal length, I'll put some money into fixing its shutter and finding a flange.
But the shutter is mystifying to me--can't find any pictures like it via Google... While it is marked COMPOUND at the bottom, and has the Compound air cylinder on top, it looks more like a dial-set Compur. Its speed dial has the counter-clockwise arrow found on some old Compur shutters, and the fastest marked speed is 1/150th--faster than any Compound I've seen. And its T/B/I selection dial is in the typical Compur spot.
So might this be one of those cobbled-together B&J Dagors I've read about? Or some uncommon factory variant?
Thanks for any info or clues...
--Leigh M. in Santa Barbara, Calif.