Sectioned "Swan" brand electric copper kettle, the first type of kettl e to be fitted with a totally immersed heating element and thereby doubling the efficiency of electric kettles, provisional patent no. 33221/ 21, by Bulpitt and Sons Ltd., Birmingham, 1921-1922 Electric copper kettle, with immersed element, sectioned, c. 1921. 1921-1922
Brass electric kettle with external heating element around the kettle circumference and two connecting pins, works at 100-110 volts and 5.2 amps, serial no. 36790, possibly by Simplex, English, 1905-1915 The kettle may be c. 1910, but the iron is more like 1930. 1905-1915