A small mixed collection of scientific instruments Various makers, 19th century Comprising a lacquered brass surveyor's sighting compass, Troughton & Simms, mid 19th century, in original sharkskin case; a gilt brass 'Hutchinson's Improved Surveying Aneroid' altimeter/barometer, Elliott Bros, late 19th century, in original leather case; three various pocket compasses, 19th century; a prismatic microscope objective, cased, late 19th century; and a French map distance gauge, 19th century, (7).
A small mixed collection of scientific instruments Various makers, 19th century Comprising a lacquered brass surveyor's sighting compass, Troughton & Simms, mid 19th century, in original sharkskin case; a gilt brass 'Hutchinson's Improved Surveying Aneroid' altimeter/barometer, Elliott Bros, late 19th century, in original leather case; three various pocket compasses, 19th century; a prismatic microscope objective, cased, late 19th century; and a French map distance gauge, 19th century, (7).
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
