Details
Max Thomas Edelmann,
a late 19th century drehspulgalvanometer signed on the tripod stand EDELMANN MÜNCHEN, the black enamelled and lacquered brass frame with glass torsion wire tube, two viewing windows, the 16 iron bar magnets arranged within four adjustable clamps, the base plate stencilled in white E.85., the stand arranged for rotation and with four adjustable screw feet - 22in. (56cm.) high; and a Hartmann & Braun-pattern galvanometer with maker's trademark No. 1216 - 9¼in. (23.5cm.) high (2)
a late 19th century drehspulgalvanometer signed on the tripod stand EDELMANN MÜNCHEN, the black enamelled and lacquered brass frame with glass torsion wire tube, two viewing windows, the 16 iron bar magnets arranged within four adjustable clamps, the base plate stencilled in white E.85., the stand arranged for rotation and with four adjustable screw feet - 22in. (56cm.) high; and a Hartmann & Braun-pattern galvanometer with maker's trademark No. 1216 - 9¼in. (23.5cm.) high (2)