"Four enthusiastic riders of Torpedo motor cycles on tour"; copy of an advertising drawing for Lincoln Elk motorcycles; shows 4 cycles (regs.B3947, B3981, others not legible) and their riders lined up in front of the premises of F.Hopper and Co Ltd, Motor Garage, Brigg Road, Barton on Humber; the men wear oilskin coats, flat caps turned back to front and goggles pushed up on to their heads