Neither Rain nor Sleet.(Escape Roads)

Byline: BOB TOMAINE This two-tone Ford F-3 van may not be the most striking display at the Boyertown Museum of Historic Vehicles in Boyertown, Pennsylvania (opposite page), but conventional wisdom says collectors and enthusiasts want the vehicles they grew up with. Everyone grew up with a mail truck. Built on a one-ton chassis, the F-3 wears a Boyertown Step-N-Serve body painted dark green and black. A yellow stripe is lettered "U.S. Mail,'' and despite the number-1800-this Ford was the first of 2500 to come out the door of the Boyertown Auto Body Works 55 years ago. But ...