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Mr. Zip: The 1960s Post Office Icon

Sep 01, 2017 |  Retro Staff |  No Comments

  Zip codes, or Zoning Improvement Plan codes was a concept that evolved out of the delivery codes first put into practice in 1943. These were 2-digit codes following city names in mailing addresses to indicate postal zones within the cities meant to speed up delivery. Mail volume in the U.S. had increased from 28

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