Beautiful 32cm Reduction Compass, Engraved Iron, Louis XV Period, Rare!

Beautiful cartography, geometry, navigation instrument, to transfer distances on maps, for example.
Large model, forged steel, tips on each side cut rockery, Manual engraving in Latin one side on two sides: homologous Solidor and homologous Planor…And: B: Linea Circularis and A: Linea reda, followed along the compass by Arabic numerals engraved at proportional intervals.
The 2 sides with free slide are joined by one central axis which can navigate all along the instrument, adjusted by an oval drum screw, with butterfly tightening, very progressive and neat.
No signature of manufacturer.
You understood that I am not a specialist, excuse the heaviness of my description…
32cm x 3cm x 3.5cm.
Good general condition, small wear, no flaws see our sincere photos,
This item is for immediate purchase, payable by credit card or paypal.
- eclectic - antique dealers since 1970, Siret: FR 24.430113233. Invoice and Certificate are attached to each of our shipments. We are not experts, but in this business for 50+ years. Hassle-free refunds in case of disappointment.