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A late 19th-Century French brass surveying compass, plane table square and inclinometer,
A late 19th-Century French brass surveying compass, plane table square and inclinometer,

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A late 19th-Century French brass surveying compass, plane table square and inclinometer,
signed on the silvered compass dial Mon.. du Dn. A. Chevalier, Opticien. Paris., the compass edge-bar needle with jewelled cap, needle stop, inclinometer arm, the compass box with two folding sights, level and cross-bubble, the plane-table square with chamfered edge, one side engraved with a scale 0-9cm., mounted on a hinged bracket located on a tapering pillar support and stepped circular lead-filled plinth base, stamped on the underside DEYGAS LYON -- 7in. (17.8cm.) high

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