Defender Products, Defender Photo Supply Co. (Rochester, NY), undated c. 1909, ~5"x7", 32pp
Like most catalogs of photographic plates and paper, this one is in mint condition. Read once, perhaps, but never thumbed. It is undated, but page 2 states "For the past decade we have been the originators..." Since the company was incorporated in 1899, the catalog would be c. 1909.
