Description from Amazon
These kettles have been hand crafted in England since 1903, using solid copper or chromed-finish copper with a pure tin lining.
The No. 4 Simplex Chrome Kettle features a mirror chrome finish over solid copper with a nickel lining and an ebonised beech handle. Plus it whistles on boiling. The specially designed heat retaining base coil which can reduce boiling times up to 25% compared with an ordinary flat bottomed kettle. Suitable for gas appliances only. Simplex tea kettles have been hand crafted in England since 1903. Capacity: 1.8 qt.