Theodolite - 1947 - France - DERONZI & Cie , Instrument d’optique et de précision – Règle à éclimètre avec niveau optique

DERONZI & Cie – Optical and precision instruments – Clinometer rule with optical level – 1940s–1950s
DERONZI & Cie, a French firm specializing in optical and precision instruments, presents this rare antique surveying instrument, comprising a long brass rule painted gray and incorporating a precision optical level mounted on an adjustable support with micrometer knobs. This set was used to measure slopes, vertical angles, and differences in elevation during land surveying, leveling, and topographic work.

The instrument comes with its original solid-wood case, carefully assembled, which served both as protection and as a carrying case. The interior is fitted to hold the various components, and the case retains its period leather strap, attesting to its professional use in the field.
for collectors ( Rare, Very rare, Authentic, Original, Complete, Collection, Professional, Historic, Period, Made in France, Antique scientific instrument, microscope, compass, industrial, compass, sextant, steampunk )