Details
An 18th-Century brass graphometer,
signed on the alidade Meunier Md, a la Flotte d'Angleterre a Paris, the protractor engraved with scales 0°-180° (x2), the compass box supported on the underside by four screws, with plain needle and clamp, mounted in the frame and supported by twin scrolls, the limb and alidade with fixed sights, the underside with staff mounting and ball-and-socket joint, the limb -- 12in. (30.5cm.) wide
See illustration
signed on the alidade Meunier Md, a la Flotte d'Angleterre a Paris, the protractor engraved with scales 0°-180° (x2), the compass box supported on the underside by four screws, with plain needle and clamp, mounted in the frame and supported by twin scrolls, the limb and alidade with fixed sights, the underside with staff mounting and ball-and-socket joint, the limb -- 12in. (30.5cm.) wide
See illustration