When a Florida mailman landed a gyrocopter with a USPS logo on the lawn of the Capitol today, I’m sure you were asking yourself the same question I was: Does the postal service really deliver mail via gyrocopter? Not today. But it turns out they did, back in the 1930s.
The USPS is replacing the squat little vans you're use to seeing around the neighborhood, and is now trying to find a replacement. This sketch has just been released as an idea of what the Postal Service has in mind.
When United States Post Office planes took to the skies in the 1920s, they had their own version of the roadway's yellow line. A series of giant concrete arrows and gaslight beacons helped point the way from New York to San Francisco.