Details
A surveyor's Y-level,
in black enamelled brass with lacquered fittings, rack focussing to eyepiece and objective, underslung spirit level and four-screw mounting -- 20½in. (52cm.) long, late 19th century, in wood case with plaque of Gurley Engineering Instruments Troy N.Y.
in black enamelled brass with lacquered fittings, rack focussing to eyepiece and objective, underslung spirit level and four-screw mounting -- 20½in. (52cm.) long, late 19th century, in wood case with plaque of Gurley Engineering Instruments Troy N.Y.