Details
A rare 19th-Century lacquered-brass distance meter,
by Stefan Ressel Vienna, the viewing tube with eyepiece and adjustable shade, adjustable mirror, mounted on a circular base with worm-gear adjustment, level and cross-bubble, with three adjustable screw feet -- 8.1/8in. (20.6cm.) high, and a photostat copy of original manuscript instructions for use, dated 1888, and a later printed sheet
See Illustration
by Stefan Ressel Vienna, the viewing tube with eyepiece and adjustable shade, adjustable mirror, mounted on a circular base with worm-gear adjustment, level and cross-bubble, with three adjustable screw feet -- 8.1/8in. (20.6cm.) high, and a photostat copy of original manuscript instructions for use, dated 1888, and a later printed sheet
See Illustration