OLD STLE HEADLAMPS DISCONTINUED! NO LONGER AVAILABLE. These period  headlamps are sold in pairs and  have just been introduced by Mamod to replace the old style ones fitted to their mobiles since production began! They will replace all existing lamps and can be used on other things .No riveting required as they have a screw fixing.  They have a clear plastic lens and are aprox 25mm  in dia x 14mm deep