Keuffel & Esser Co.
Engineer's Expedition Transit
Model number 5079
This transit is the smallest made by
Keuffel & Esser, it is commonly referred to as a
Explorer's Transit. It is only 9 inches tall with a 8 inch long erecting image
This model was normally offered with a 6 inch long telescope with slightly
standards. This type of transit's standards are usually referred to as a Twisted
It was made in 1903, and is in near new condition.
It has a 4 inch diameter one minute
horizontal circle, a 3 inch diameter one
circle, a 14 power erect image
telescope with 1:100 ratio stadia, a 35 second
level vial, a 2 inch long
compass needle. The tripod thread size is 2.265
inches X 16
threads per inch. It has
with it a 2 ounce plumb bob, oil can, spanner screw
adjusting pins, sunshade,
lens cap, right angle eyepiece prism with sun filter,
and its mahogany box which measures
11 inches high, 9 1/8 inches wide and 5 5/8 inches deep outside. Sorry it is not
I know of only six other "Twisted Frame" Expedition Transits by K&E.
Click on a thumb nail photo for larger