Please Help me ID this Rapid Rectigraphic

[Dan Quan]

I have looked and cannot find a manufacturer name. Does this lens look familiar to anyone? Thanks.

 

[juan]

It looks a lot like the lens I have that originally came on a Conley camera. I have never been able to identify the maker, though folks who know more than I have guessed both Wollensak and B&L.

 

[jeffreythree]

I little search of the patent date, and voila, probably Gundlach. http://www.camarassinfronteras.com/articulos/rochester/gundlach/patentes/US442251_gundlach_objetivo_1890.pdf

 

[shutterfinger]

A Lens Collectors Vade Mecium under Gundlach-Manhattan Optical Company, Rochester, NY says this:
Rapid Rectigraph f8.0 6.25-26in. Use 13in for 10x8in. Noted 1890-1910 at least. This may
be an RR with improved colour correction. In 1890, the range was 5.5-17in. (Gun002)

 

[removed account4]

i love convertible lenses, this one is beautiful !

 

[Dan Quan]

It is a neat looking lens and that is part of why I bought it; at the time I thought I would have more than enough draw to use it, but I've had to go another direction. The rear group has much balsam separation and looks far from useful but the front 23in group looks plenty good, I just do not have anywhere near 23+ inches.

Thank you all for helping me get a handle on what this might be.