A 19th-Century brass surveying compass, signed on the silvered dial L. Colton, New York., engraved with scrolling foliage, the edge-bar needle with jewelled cap, circle divided in 4 quadrants, the limb with level, cross-bubble and compass variation adjuster by tangent screw, twin sights (one a replacement), in mahogany case - 14 7/8in. (37.8cm.) wide.
A 19th-Century brass surveying compass, signed on the silvered dial L. Colton, New York., engraved with scrolling foliage, the edge-bar needle with jewelled cap, circle divided in 4 quadrants, the limb with level, cross-bubble and compass variation adjuster by tangent screw, twin sights (one a replacement), in mahogany case - 14 7/8in. (37.8cm.) wide.
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