Simple copper voltameter on mahogany base
1900-1920
Copper voltameter
1920-1959
Copper voltameter, Smith pattern
1907-1980
Copper Voltameter by Griffin
1954-1970
Voltameter (Used in the preparation of Argon).
Orme's voltameter,1905
1905
Hoffmann voltameter with platinum electrodes
1954-1980
Voltameter by Ducretet
1864-1930
Water voltameter; a glass dish with electrodes passing through the base
1900-1980