Details
A rare 18th-Century astronomical ring dial,
signed on the meridian ring Langlois A Paris Aux Galleries du Louvre, engraved with a 0-90 scale (x2) on one side, with the latitudes of Paris, Brest, Rennes, the other side with the latitudes of Basle, Strasbourg, Lisle, Calais, Liege, Montpellier, Madrit, Bruxelles, Londres and Constantinople, with sliding suspension bracket, the equinoctial ring engraved on one side with a I-XII hour scale (x2), the alternate side with the latitudes of Perpignan, la Rochelle, Vienne, Bordeaux, Poitiers, Turin, Milan, Rome, St. Malo and Toulouse, the inner ring with zodiac and calendar scales, alidade with two fixed sights engraved with scrolls and foliage, the ends with needle pointers, engraved on one side with the latitudes of Bayeux, Caen, Lyon, Dijon, Nantes, Sens, Arras and Naples, the cross-bars Rouen, Malte, Nancy and Moscou, the other side Cap de Bonne, Esperance, Dunquerque, Copenhague, Kebec, Lipsic, Geneve, Grenoble, and Gennes, the cross-bars Gand, Marseille, Dieppe and Lima, the meridian ring -- 5in. (14cm.) diameter
See Colour Illustration and Detail
signed on the meridian ring Langlois A Paris Aux Galleries du Louvre, engraved with a 0-90 scale (x2) on one side, with the latitudes of Paris, Brest, Rennes, the other side with the latitudes of Basle, Strasbourg, Lisle, Calais, Liege, Montpellier, Madrit, Bruxelles, Londres and Constantinople, with sliding suspension bracket, the equinoctial ring engraved on one side with a I-XII hour scale (x2), the alternate side with the latitudes of Perpignan, la Rochelle, Vienne, Bordeaux, Poitiers, Turin, Milan, Rome, St. Malo and Toulouse, the inner ring with zodiac and calendar scales, alidade with two fixed sights engraved with scrolls and foliage, the ends with needle pointers, engraved on one side with the latitudes of Bayeux, Caen, Lyon, Dijon, Nantes, Sens, Arras and Naples, the cross-bars Rouen, Malte, Nancy and Moscou, the other side Cap de Bonne, Esperance, Dunquerque, Copenhague, Kebec, Lipsic, Geneve, Grenoble, and Gennes, the cross-bars Gand, Marseille, Dieppe and Lima, the meridian ring -- 5in. (14cm.) diameter
See Colour Illustration and Detail