Guillotine, metal, on wood base, probably Italian, 18th century Guillotine, metal, on wood base 1701-1800
Ducretet spark coil, wood and metal, with wooden retort stand by Rochfort of Paris, French, 1901-1930 Ducretet spark coil 1901-1930
Wheel turned dynamo, on wooden base large horseshoe magnet, double coil and commutator, probably English, 1880-1910 Wheel turned dynamo 1880-1910
Boxfoot microscope of mixed construction, English, late 18th and early 19th century Boxfoot microscope of mixed construction 1771-1831
Amici's original horizontal microscope, incomplete, Italian, 1830-1860, bought by Crisp from Prof. Golfarelli in 1886, who had obtained it from Amici's heirs Amici's original horizontal microscope
Electrostatic machine, wooden base, glass tubes, metal fittings, bad condition, plate missing, European, first half of the 19th century Electrostatic machine 1801-1850
Boxfoot Culpeper microscope in pyramidal case, signed "Adams, London", late 18th or early 19th century Boxfoot Culpeper microscope in pyramidal case 1780-1820
Part of electrical panel, oak base with rheostat porcelain fuse box and two pin socket connected, also wooden plug attached to flex, French collection, French, c.1900 Part of electrical panel 1890-1910
Glass manometer on wooden stand, European, first half of the 19th century Glass manometer on wooden stand 1801-1850
Interrupter, metal, on wood base, with meter, European, first half 19th century Interrupter, metal, on wood base 1801-1850
Ozonator transformer, in iron case with wooden base, by Compagnie pour la fabrication des compteurs et materiel d'usines, Paris, 1895-1920 Ozonator transformer 1895-1920
Six discharge rods, with wood bases and glass tubes, on wood tray, by Riviere of France, 1890-1910 Six discharge rods 1890-1910