Specimen of root bark of wahoo bark, North America, 1901-1939 Specimen of root bark of wahoo bark 1901-1939
Electrostatic machine, wood base and frame, glass plate, metal fittings, by M. Pillischer, 88 New Bond Street, London, England, 1801-1900. Electrostatic machine 1801-1900
Large plate electrostatic machine, wood frame, glass plate, metal fittings, European, late 18th or early 19th century. Attached paper tag notes an association with 'Cavalo', presumably Tiberius Cavallo (1749-1809). Large plate electrostatic machine 1790-1810
Electrostatic machine, wooden frame, glass plate, metal fittings, by Cary of London, first half of the 19th century Electrostatic machine 1801-1850
"Radium" water filter complete with perforated earthenware plate and stand, English, 1901 to 1930 "Radium" water filter complete with perforated earthenware plate and stand 1901-1930
Radium water filter with upper resevoir jar, perforated earthenware plate, and tripod stand, English, 1901 to 1930 Radium water filter with upper reservoir jar 1901-1930
"Radium" water filter base jar with perforated earthenware plate and stand, 1901-1930, English "Radium" water filter base jar with perforated earthenware plate and stand 1901-1930
Electrostatic machine, wood base and frame, glass plate, metal fittings, European, 19th century Electrostatic machine 1801-1900
Electrostatic machine, wood frame, glass plate, metal fittings, European, first half 19th century Electrostatic machine 1801-1850
Glass plate with date fruit from Mecca, 1930-1931 Glass plate with date fruit from Mecca, 1930-1931 1930-1931
Electrostatic machine, wooden base and frame, glass plate, metal fittings, European, 19th century Electrostatic machine 1801-1900
X-ray apparatus, 3 photographic plates only, glass in wood frame, probably French, first half 19th century X-ray apparatus 1801-1850