Chromed. Clamp fitting for 22 mm handel bars but can be drilled directly on handel bars as well without clamp. Can be used as well as a cut out button. Wire need soldering on. We use this nice button for all type of british motorcycles 1930 - 1960.
Many british postwar twins with LUCAS K2F magneto.
Used in british motorcycles 1968 - 1972. Pointed type. Also called "Single tit".