The ultimate prize for a collector of authentic and race-used Formula One merchandise are the helmets of the drivers. These one-of-a-kind helmets are usually designed to the individual tastes of the drivers, which makes them even more special. Finding one, much less obtaining one, can be extremely difficult since drivers receive only so many per season and many of them are kept or contracted to give to team owners or sponsors. Drivers also trade helmets with each other so very few remain. Outside...