Folding Pocket Magnifiers. 
No. 3161. 
No. 3163. 
No. 3165. 
No. 3166. 
No. 3167. 
No. 3168. 
No. 3169. 
No. 3170. 
metal sides 
Three lens combination in vulcanite, with 
%in., 2 in., and 2 in. diameter lenses 
Three lens combination in vulcanite, with 
1 in., %in., and ? in. diameter lenses 
Two lens combination in vulcanite, with 
g in., and # in. diameter lenses 
Ditto, with 1 in. and 3 in. diameter lenses 
Single lens magnifier, box frame in vulcanite, 
% in. diameter 
Ditto, 1 in. diameter 
Ditto, 1} in. diameter 
Ditto, 1} in. diameter 
Single lens magnifiers. 
£0 
1+ in. diameter, 
A magnifier suited for all general purposes, having a power of 12 
and diameter of *75 in. It is mounted in nickel plated frame and 
each magnifier is supplied in chamois leather bag. 
No. 3148 
~- ee 
thus an undistorted reading or view is obtained. 
No. 3149. 
110 
6s. 6d. 
No. 3125. Single lens magnifier, 1} in. diameter, 
<3, mounted with metal sides, thick - 
ness } in. ... 
0 
No. 3126. As No. 3125, x5, thickness 2 in. 
No. 3137. Planoscopic magnifier giving flat field 
<8, mounted with 
i) 
USe 
— 
bo 
6 
An extremely useful magnifier for the reading of scales 
or examining objects situated in places where the hands 
cannot be readily introduced. The length of the handle 
is 34 in., diameter of lens 1:1 in., magnification 4°5. The 
hinged joint allows the lens to be placed approxi- 
mately parallel to the scale or object being examined. 
No. 3149 6d. 
