The oldest model featured is the 1938 International Harvester D-2. The D-2 was notable for being one of the first trucks to consider styling as a factor in design. Most trucks previously had been solely utilitarian in nature, while the D-2 was went for chrome trim, a rear-swept grille, and a split windshield.
The 1948 F-1 was Ford's first all-new truck following World War II. The design was no longer based on Ford's cars, instead featuring a more sophisticated suspension and what Ford called the "Million Dollar Cab." Ford sold more than 300,000 of them in the first year, a statistic it shares with the modern F-150.
The 1953 Chevrolet pickup, referred to as the Advance-Design, debuted in the 1947 model year. The truck was the first all-new American post-war truck. The truck, powered by an inline-six, It was so popular that Chevy felt no need to overhaul it until 1955.
The newest model to grace these stamps is the iconic 1965 Ford F-100. This pickup featured a new frame that introduced Ford's Twin-I-Beam independent front suspension. The suspension design stuck around in some form or fashion until 1996.
The USPS gave few details as to why these four were chosen and others, like something from Dodge, were left off. The stamps will be available starting on July 15. A book of 20 can be purchased for $9.40 and will be good forever, regardless of any future postage increase. This might be the only way you'll ever get a Ford guy to buy a Chevy, and vice versa.