I an trying to trace my grandfathers bike. It's frame number is WM20 27278, Census No: C4343870. Unfortunately it's not in the Key Cards but the other bike is. Any info on my Papas bike will be gratefully received. My Papas best mate is on board the other bike and it saw post war service. It's Census No' was C4343801. It's Frame Number was WM27209 it's tank number after rebuild is 1433807 and it's Reg No' is 14 YD 40. I'm desperate for info so if you've got anything please get in touch. Thanks.