Pinnacle Graphometer & Compass Or Surveyor's Semicircle

Signed "Henri MORIN, 3 Rue Boursault - Ateliers H. MORIN & GENSSE in Paris", c. 1890.
Brass, glass and blued steel in a walnut wood case with brass handle.
Beautiful graphometer from the H. Morin workshops, founded around 1880, this company quickly became one of the leading French companies supplying instruments for drawing, topography and artillery work. In 1886, Henri Morin joined forces with E. Gensse.
Including compass with blued steel needle, half-circle with double graduation from 0 to 180, rack-and-pinion bezel, level with grinding screw, movement ball with stop clamp and knee.
Model in very good condition, in its original shaped case, with an additional set of wires for the pinnule slits.