Fast Mail

Here's a real piece of nostalgia. It is an old book that held stamps back in the late 1960s-early 1970s, judging from the old Post Office Pony Express logo. Look how much a stamp cost back in the days! The little postman featured here is Mr. Zip, who reminded people to use a zip code when you mailed your letter instead of a zone, which was common back in those days. According to the Postal Museum, Mr. Zip was introduced in 1963 when the Zip Code was put in effect and debuted in January 1964.