Cowley - Topographic theodolite - Steel, Glass, Leather - 1940-1950 - Level

Rare Cowley Level precision instrument, used for high-precision measurement and leveling in technical and industrial settings.
Original instrument, complete with its original leather case with closures and internal padding perfectly preserved, and iron support.
The iron rod (red) must be inserted into the hole (red).
The blue hole is the eyepiece, while the green part is the objective