Ventes live - Lot 473
[Mathematics]
2 slide rules by Tavernier-Gravet and 2 others.
20th c
Prix de marteau: €
200
€ 150 / 200
Enchérir en direct (Drouot*) Enchérir en direct (Invaluable*)Les enchères sont closes
Description du lot
1. French Mannheim slide rule. Celluloid on wood, with a brass chisel cursor, 51 x 3,5 cm. In original wooden box. Signed "Tavernier-Gravet", "Médailles d'Or 1878-1889-1900". Ca. 1900. - 2. Slide rule. Wood, 26 cm. Signed "D.L." and "Médailles d'or 1878-1889-1900". Paris, 19 rue Mayet, 1881-1939. Leather case: "Albert Nestler N° 14". - 3. Logarithmic circular slide rule. Enameled aluminum, 20 cm, with two transparent celluloid cursors. Invented by L. Appoullot. Leather case. - 4. Calculating rule. Brass, 43 cm.
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