I just bought a '56 short bed big window from the 2nd owner. It was originally bought new by Riverside County as a maintenance vehicle. The truck is Omaha orange and the trim tag has 234E for the paint code. Below the 234E is the number 730. The Dupont color library verifies the 234E for Omaha orange but only says that the 730 is a combination number. The top of the truck is painted white and where it's faded you can see orange underneath. It looks like the top could have been painted by Riverside county but it's hard to tell. Does the 730 mean it was 2 tone from the factory?