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Very fine brass astronomical equinoctial ring with two brass circles.
Very fine brass astronomical equinoctial ring with two brass circles with engraved foliage decoration, signed "Jean-Baptiste-Nicolas Delure A Paris", on the han...
$8000 / ≈ €7338
Place & Date: Paris, undated, ca. 1690
Marine parallel rulers in brass.
Very fine marine parallel rulers in brass. The parallel ruler is the oldest and most traditional way to measure and trace routes and bearings. The principle is simple: t...
$1500 / ≈ €1376
Place & Date: Paris, ca. 1880