Rochester Optical Co., Rochester, NY

 

Extension

 

6½ x 8½" to 10 x 12"

Date Introduced: - ; Years Manufactured: c. 1900
Construction: pyramidal box
Materials: mahogany body; brass hardware
Sizes Offered: at least 6 ½x8 ½ to 10x12"
Notes:  This is similar to the patent extensions manufactured by the Blair Camera Co., but both its connection to the camera and its spring back are identical to ROC products.  For this reason, it is thought to have been made by ROC, probably about 1900.  It is the only one seen in the last 35 years that was not a Blair product.

References:
Seemingly never advertised, as the many catalogs available do not feature it.  The idea, if not the actual detail, is an obvious copy of Blair's Patent Extensions.

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