A fine working English surveyor's theodolite or transit instrument (aka a dumpy level or surveyors level) of brass, No.80148, by W.F. Stanley (Great Turnstile, Holborn, London), circa 1930, in original fitted wooden box. With attached spirit level on top.
Box interior label reads:
To H.M Government Science & Art Dept. Council of India, Admiralty, etc.
Made by W. F Stanley, Optical, Philosophical, and Mathematical Instrument Manufacturer, Engine Divider, etc.
Mathematical Department, Great Turnstile, Holborn, W.C.
Measurements of box are H 6 1/4 x W 13 1/2 x D 4.