Rushmore automobile lights acetylene generator, The Automatic Shaking Grate Generator' brass accessory for motor vehicle usage to generate acetylene from carbide and water for lighting purposes, plaque to front with patent information reads 'Made by/ Rushmore Dynamo Works/ Plainfield, N.J., USA/ Rushmore Lamps Limited Distributors...London', 37 cm high, 18 cm wide, circa 1910