»Large German Double Telescope Transit Theodolite by Hildebrand«, c. 1890 
Signed on the horizontal plate "Hildebrand, Freiberg i./S., original oxidized and lacquered brass, oculars with micrometers, 2 striding levels, 4 telescopic magnifiers, 2 swing-adjustable reflector mirrors, silver scales, length of the telescopes 18 1/10 (46 cm) and 15 in. (40 cm), overall height 19 in.
(50 cm) In wooden box.
Estimate: € 3,000/5,000
US$ 4,100/6,900
Reserve: € 800/US$ 1,100
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