Descriptive Catalogue Klay's Multiplying Plate Holder, Klay's Plate Holder Co. (Bluffton, OH), undated c. 1895, ~4¾"x7", 8pp
The Klay Multiplying Holder was advertised in many photographic publications from at least 1893 through 1900, and this undated catalog could be from any time in that range, although it is more likely to have been printed near the beginning and probably remained the same for years. The cover links to a photo of a complete Klay outfit, including all the gears and an instruction sheet.
