Eastman Kodak No.1 Autographic Kodak Jr./Rapid Rectilinear
Eastman Kodak No.1 Autographic Kodak Jr. Rapid Rectilinear Bausch & Lomb Optical Co. Kodak Ball Bearing Shutter 120 / 6x9cm 1920 Dallmeyer Rapid Rectilinear 1866 Steinheil Aplanat 1866 https://commons.wikimedia.org/wiki/File:RR-Aplanat-text.svg http://throughavintagelens.com/2009/09/the-rapid-rectilinear-lens/ http://www.wikiwand.com/en/History_of_photographic_lens_design