m.ät 
Kern 
,# % SWISS I 
KERN * Co. LTD. 
AARAU 
SWITZERLAND 
Finest Swiss Surveying 
Instruments 
DKM2 (pictured) is an excellent double circle 
theodolite reading to seconds. Best suited for 
higher land surveys, triangulation work of the 
fourth, or third order, tacheometry and astro 
nomical observations. 
Characteristics: Sturdy construction, light weight 
(8 lbs. only), handy, powerful telescope, very 
accurate. 
Our line includes further: 
Double circle theodolites from 10' to 0,5" direct 
reading, tacheometers, levelling instruments, self- 
reducing alidades, astronomical instruments, pre 
cision drawing instruments, prism binoculars, 
telescopes, general optical equipment, medical 
apparatus, optical instruments for military use, 
lenses for cine cameras and projectors etc. 
V 
K L M AEROCARTO N.V. 
SCHIPHOL- AIRPORT 
AMSTERDAM 
THE NETHERLANDS 
* 
Contractors of Aerial Surveys, 
Photogrammetric Mapping, 
Field Surveys etc. 
395 
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