This is a collotype plate ("Gelatin Process") photographs by the Lewis Co. of Boston. This is the only book by this company thus far identified. The book notes that only about 600 prints are possible from a matrix, and that these prints were polished with Talc to bring out the contrast and detail. 
Merriman, C. C. Miscellanies, Merriman, Rochester, 1885.
 Hanson, David Checklist of photomechanical processes and printing 1825-1910, 2017