I have a 12 inch dagor lens marked Goerz Dagor F6.8 Focus 12 in. No 312455. It is mounted in a #4 Compound shutter. The shutter speed dial is marked Bausch & Lomb Optical Co. Rochester. N.Y. U.S.A. No.4.
My question is, who manufactured the lens, where and when was it manufactured? Does the fact that it is mounted in a Bausch & Lomb shutter mean that it is one of the dreaded Bausch & Lomb remounts?
Thanks.
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