Leipzig [but California]: Verlag von Wilhelm Engelmann [but The Gemmary] 1899 [but 1988]. Later printing. XIV, 397,  + three plates. 8vo. Publisher's blue cloth gilt. A bright clean copy. Text in German. A facsimile edition, with the plates NOT collotypes. Woodcuts are clear and well reproduced as are the plates. Near Fine. Cloth. 
Google title translation (into English): "The optical instruments from firm R. Fuess their description, adjustment and application ... with 233 woodcuts in the text and 3 collotype plates"
A quality facsimile of the 1899 original done by The Gemmary in 1988. Highly recommended for anyone interested in the Fuess firm, famous for their intricate and well made instruments especially for the mineralogy and geology fields.