This is a vintage NOS (New Old Stock) heater switch designed for 1961-1963 Buick Special, Skylark, Tempest Lemans, and Olds F85 models. The switch is a direct replacement that fits on the dash of the vehicle. It is a genuine GM part with the manufacturer part number 579587 and has a clean zinc surface finish. This contact type switch is not a universal fitment and does not include mounting hardware. It is a non-domestic product made in the United States and is suitable for those looking for an authentic vintage heater switch for their classic car restoration project.