Miniature Microscope Theodolite
by Gustav Heyde, Dresden, c. 1900
Serial no. 3022, signed on the horizontal circle, 4 telescopic magnifiers, 1 striding level, rack-and-pinion focusing,
original black-enameled and lacquered brass, height 7 9/10 in.
Very rare, excellent condition!
Estimate: € 700/1.200
US$ 950/1,600
Reserve: € 300/US$ 405
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