Goerz dagor lens

[anthony marsh]

I'm looking for info for 300mm dagor lens serial # 510264. Year of manufacture, quality, etc. Any info will be appreciated.

Thanks, Tony

[Dan Fromm]

Please tell us what's engraved on the trim ring or barrel. I ask because there were two Goerz companies and I don't think they coordinated serial numbers. If yours wasn't made by Goerz American Optical Company (that's Goerz American of, mainly, various locations in New York, not to be confused with American Optical Co. of Springfield, MA), according to P-H Pont's Goerz chronology it was made around 1922.