"Solid Brass Surveyor's Square With Its Wooden Case - 19th Century"
A multi-slot vertical sighting system (pinnules) allows for perpendicular sightings and topographic alignments. A finely graduated central brass ring allows for angle or slope ratio readings (azimuthal circle). The mechanism features micrometric adjustment knobs on the upper part and a telescopic element (eyepiece). The instrument is sold in its original transport case made of precious wood (probably mahogany) with dovetail joints and a brass handle. The interior is compartmentalized to protect the instrument. Dimensions: Square: H 18 x Ø 7 cm - Case: W 21 x H 9 x D 10 cm. Excellent overall condition. Shipping: Free for France and Corsica. Careful packaging - Tracked shipping within 24/48 hours. Payment methods: Credit cards, bank transfers, or PayPal.