拍品 130
130
AN 18TH-CENTURY BRASS SURVEYING LEVEL, (Kippregel), by Georg Friedrich Brander, the telescope with two folding sights, mounted on the vertical half-circle with bubble level, the face signed Brander & Höschel in Augsburg, with coarse rack and pinion adjustment the scales divided in two quadrants and engraved for Cathetus and Basis, the vernier scale for Bina Minuta, mounted by two knurled bolts to a plane-table alidade rule -- 18in (45.7cm) long, with the original fruitwood carrying case

細節
AN 18TH-CENTURY BRASS SURVEYING LEVEL, (Kippregel), by Georg Friedrich Brander, the telescope with two folding sights, mounted on the vertical half-circle with bubble level, the face signed Brander & Höschel in Augsburg, with coarse rack and pinion adjustment the scales divided in two quadrants and engraved for Cathetus and Basis, the vernier scale for Bina Minuta, mounted by two knurled bolts to a plane-table alidade rule -- 18in (45.7cm) long, with the original fruitwood carrying case

拍品專文

C8:- Brachner., Alto., G F Brander 1713-1783 Wissenschaftliche Instrumente aus seiner Werkstatt., Deutsches Müseum, Munchen., Catalogue (1988), pp 77-86