...The Seroco 5x7 Plate Camera Lens Rapid Symmetrical 5x7 manufactured by......The Seroco Camera Company Bellows.......intact Red View finder.........intact Ground Glass....intact 5x7 Shutter............Wollensak Optical Co. Rochester N.Y. pat feb 6th 1900 pat July 23rd 1901 f-8 -- f-256 speed...... 1.. 1/2 1/5 1/25 1/50 1/100.. B T Lens................Rapid Symmetrical 5x7 lenses.............clean and clear
