Bonhams 1793 Lot soldUSD 138 - 275GBP 100 - 200 (listed)EstimateUSD 138 - 275GBP 100 - 200 (listed) See all lots A veteran 'twin' ignition switch Bonhams, London to Brighton Run Sale, Oct 31st 2014 | London, 31 October Summary Type Other Lot number 124 Location Description A veteran 'twin' ignition switch, polished brass with two separately operated switches and white glazed ceramic insulating base.