Electroscope by Hermann Schorss, Wien, No.162, in Wien
1901
Portable gold leaf electroscope
1891
Two sectioned Fountain Pen Electroscopes (type 1063)
1945-1949
Gold-leaf electroscope with large brass shade
1850
Condensing gold leaf electroscope
Straw electroscope (without straws)
1850
Condensing gold-leaf electroscope
Gold leaf electroscope
1920-1959
Braun electroscope
1950-1983
Gold-leaf electroscope by Griffin and George Ltd.
1954-1983
Gold-leaf electroscope in conical flask
1900-1983
Gold-leaf electroscope
1900-1980
Pulse electroscope by Griffin & George Ltd.
1964-1980
Gold leaf electroscope
Harris's electroscope
1834-1849
Gold leaf electroscope made by J. Newman
1828-1857
Sensitive gold-leaf electroscope
1820-1856
Volta's condensing electroscope
1872
Gold-leaf electroscope by Cambridge Instruments
1930-1970
Ronald's Electroscope, gold leaf
1850
Ronald's Electroscope, straw
1850
Pith-ball electroscope on metal stand
Quartz fibre electrometer and charging unit
1945-1955
Gold-leaf electroscope, in small flat-bottomed flask
Gold-leaf electroscope by Philip Harris Ltd.
1943-1983
Wulf electroscope fitted with projection attachment consisting of lamp house
1950-1974
Projection electroscope
1962-1970
Gold-leaf electroscope with two side electrodes
1900-1983
C.T.R. Wilson tilted electroscope
1932
Gold leaf electroscope made by John Newman
1828-1857
Bennet gold-leaf electroscope
1894
Condensing electroscope made by R.B. Bate, London
1808-1850
Gold leaf electroscope made by J. Newman
1828-1857
Leaking electroscope
Gold Leaf Electroscope made by J. Newman
1828-1857
Pith ball electroscope
1895