Gurley Engineers Theodolite
W. & L. E Gurley #12 Engineers Transit This large transit is in very nice original condition.
This simple model was offered by Gurley and has no vertical circle or even a means to lock the scope in place.
The label on the inside of the box would date this circa 1880. See
The Gurley tripod top has a much larger thread than the tripods for European and Australian theodolites Refer to the Tripods page