Militia Artillery Against Aircraft, Royal Air Force, circa 1940. 120ยฐ angled telescope theodolite, equipped with a precision compass associated with a toric level, horizontal and vertical circles, equipped with microscopes for reading the graduated vernier. A small knob allows you to rotate the vertical vernier, here too there is and associated with a small toric level with small steps provided with a mirror. Good condition, slight signs of wear and tear.