Does anyone know this lens? The best information I've been able to find is that it is not a Dagor type.

No mention in the VM, not a surprise since the VM is weak on US-made lenses.

Thanks to Google, I know that Goerz American Optical Company (no connection to American Optical Company) changed its name to "Goerz Optical Co. Inc." in 1962. See http://www.globalmatter-lab.net/catalog.htm

Thanks to Google applied to this site, probably not a Dagor type. Perhaps 4/4 (see http://www.largeformatphotography.in...3-Dagor-S-lens).

My question isn't all that new, its been asked before but hasn't got a definitive answer yet.