Revolving Bell Engine by Daniel Davis

Oct 12, 2023

Revolving Bell Engine by Daniel Davis, c. 1848 Starting bid: € 800 | Estimate: € 1.500 – 2.500 Daniel Davis (1813–1887), Boston. Electromagnetic motor, consisting of a vertical steel U-magnet, a revolv-ing iron bar between the poles with electromagnet and a gear...

Brass Heliostat by R. Fuess

Oct 12, 2023

Brass Heliostat by R. Fuess, Berlin, c. 1850 Starting bid: € 600 | Estimate: € 1.200 – 1.800 Signed in script on the lead filled base, center with bubble level (dry), three levelling screws, vertical semi-circular scale calibrated 0–30 and 0–90, clockwork motor...

Wild T4 Astronomical Theodolite

Oct 11, 2023

Wild T4 Astronomical Theodolite, c. 1961 Starting bid: € 800 | Estimate: € 1.500 – 2.000 Wild, Heerbrugg, Switzerland. No. 80931, large special instrument for astro-geodetic measurements, right-angled telescope with deflecting prism, 65x magnification, eyepiece...

Negretti & Zambra Miner’s Dial

Oct 11, 2023

Negretti & Zambra Miner’s Dial, c. 1890 Starting bid: € 350 | Estimate: € 700 – 900 Engraved on the telescope “Negretti & Zambra, London”, all polished brass construction, 7-inch silvered circular compass dial with 2 spirit levels,...

Combined Magic Lantern and Cinematograph

Oct 11, 2023

Combined Magic Lantern and Cinematograph, c. 1905 Starting bid: € 400 | Estimate: € 800 – 1.200 Jean Schoenner, Nuremberg. For 35mm film strips or 6 x 20 cm glass slides, blued sheet-steel case with nickel-plated fittings, three-part lens, rack-and-pinion...