Islamic Brass Qibla IndicatorProbably production period end of 18th up to beginning of 19th century, Safavid-style, circular 33/8-inch (8,6 cm) di...

French Tellurium, c. 1880Physical demonstration model, signed on the earth globe: "Globe Terrestre par M. Vivien de St. Martin - Berlin, E. Schott...

3 Compasses1) Paperweight, glass, Ø 3 1/6 in., weight 350 g, c. 1920-30. - 2) Lighter, nickeled, c. 1935. - And: 3) Sundial with compass, painted ...

Small Wood Terrestrial Globe, c. 1800France. Turned fruitwood, stress crack on one side, 5 recessed meridian lines, hand-lettered "10.000.000 de M...

Japanese Mariner's Compass, c. 1850Magnetic compass, hardwood case, Ø 4 ¾ in., upper face with characters of the 12-sign cycle, with lid.Zustand: ...

2 Physical Instruments, c. 19001) Mirror galvanometer by W & J George Ltd., Birmingham. no. 1273, original lacquered copper, height 15 ¼ in. - And...

Crookes Phosphorescent Butterfly Tube, c. 1910Vacuum tube with butterfly, with base, overall height 13 ¾ in.Zustand: (2/-)Crookes'sche Röhre mit p...

Contact Pendulum by E. Zimmermann, c. 1923Leipzig, Germany. Physical demonstration model, with 2 adjustable weights, for determining the period of...

4 Special Tools and Demonstration Instruments, c. 19001) Special instrument for making jagged circular lines, 8 different cam discs, brass and ste...