45, COENHILL, B.C., AND 122, BEGENT STREET, W., LONDON. 531 



3193 Square Trunk Rigid Camera for Operating Room (fig. 3194), Spanish Mahog- 

 any French polished, with long-screw adjustment, enabling the operator to 

 use lenses of different focal lengths ; and for copying, with swinging back, 

 for bringing objects at various distances into correct focus; one single 

 back, inner loose frames, and focusing screen : 



Framed and Panelled. Brass Bound. 

 Plain. Extra. Extra. 



Each. Each. 



No. 1 for plates 12 by 10 in. . . 14 10 440 22 

 No. 2 18 by 16 in. .. 21 10 880 3 10 



FIG. 3194, 



3194 Single or Double Backs for Cameras (fig. 3194), for prices, see page 529. 



3195 Sliding Body Folding Camera. Best Spanish Mahogany, French polished, 



with one Single Back, two loose f rames r Focussing Glass, and with vertical 

 Sliding Front for adjustment of foreground and sky (fig. 3195). 



Plain. Brass Binding, 



(fig. 3195) (fig. 3195*) Extra. 



No. 1 for plates 9 by 7 in 6 10 160 



No. 2 10 by 8 in . . 7 10 1 15 



No. 3 12 by 10 in 10 10 1 15 



No. 4 15 by 12 in 12 12 220 



FIG. 3195. FIG. 3195*. 



The above can be had framed and panelled, or with fine screw focussing adjustment, 



at an additional cost. 



NEGRETTI AND ZAMBRA, being exclusively engaged as Photographers to the 

 Crystal Palace Company, are enabled from great practical experience to supply 

 such apparatus as will really be of service to a Photographer ; and -as the greater 

 part of the articles enumerated are made under their own immediate superintend- 

 ence, and finished with all the most recent and really serviceable improvements, 

 they will be found to work so as to present the least possible chance of failure. 



All Photographic Cabinet work intended for use in Tropical Climates should 

 be made of Spanish Mahogany, and clamped with Brass, to insure durability. 



2 M 2 



