Mark Gell: Rudge Low Gravity Carrier Bike
Mark Gell: Humber Low Gravity Carrier Bike
Mark Gell: Instructions for cyclists and inspecting officers ...
Mark Gell: Perry coaster hub ..
Mark Gell: Alfons Mucha 1902 Cycles Perfecta
Mark Gell: Cheret, Jules Humber Cycles
Mark Gell: Cheret, Jules The French Standard
Mark Gell: Cycles Gladiator
Mark Gell: N.R.C. Rijwielen
Mark Gell: Patee Rijwielen met ondoordringbare Chase Banden
Mark Gell: Ride a Stearns and be content, bicycle advertising poster,_ 896