Bausch & Lomb Optical Co. (Rochester, NY)

Iris Diaphragm Shutter, 1888-type, Brass - c. 1889

Notes:  This is an unmarked rapid rectilinear-type lens in a 3" diameter brass Iris Diaphragm Shutter, marked: "Bausch & Lomb Optical Co. Rochester, New York 435 Pat. May 15, '88".

The International Annual of Anthony's Photographic Bulletin, Vol. II, 1889, W. J. Harrison and A. H. Elliot, eds., E. & H. T. Anthony & Co. (New York, NY), ads p. 107


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