Scovill's Photographic Series No. 26, The Photographic Instructor, Prof. Charles Ehrmann, Scovill Mfg. Co. (New York, NY), copyright 1888, ~6"x9", 196pp & 32pp ads

 The text includes an engraving of a Waterbury Camera on page 12 and a Philadelphia Stereo Box on page 134.   

pages 8-11 not scanned

pages 14-133 not scanned