Matchbox Collectibles 1937 Harley-Davidson Knucklehead Semi-Truck with Trailer is a diecast model of a Peterbilt tractor trailer in 1:64 scale. The model features a 1937 Harley-Davidson Knucklehead motorcycle and is part of the Matchbox Collectibles series. It was manufactured in 1998 and comes in its original packaging.  Outside box appears to have some water marks.   Truck did not get wet.