MR ZIP US MAIL ZIPPY USPS MAN POST OFFICE PIN postal po

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eBay's largest sellers use AuctionLynxx to increase sales... shouldn't you? MR ZIP US MAIL ZIPPY USPS MAN POST OFFICE PIN postal po Photo Click Image for Larger Preview Description MINT PERFECT CONDITION OLD BRASS U.S. MAIL MR ZIP PIN WITH CLASP...FOUND IN A BOX IN STORAGE FOR OVER 20 YEARS. MADE IN RHODE ISLAND USA, PROBABLY IN THE 60'S OR 70'S. PIN IS 1" TALL... An experimental postal zoning system had been tried in some U.S. cities even before May 4, 1943, at which time 178 of the largest urban areas received a one- or two-digit number, to be placed after the city name and indicating the postal delivery district. The 1943 plan, the District Delivery Number system, was a wartime expedient, enabling fledgling postal clerks replacing those lost to military service to sort mail easily by zone number. Two decades later, 75 percent of first-class mail in the United States was generated by a handful of large-volume mailers. The Post Office Department devised a plan to speed handling and delivery of letter mail. By the early 1960s, automatic data processing equipment was in general use in large American businesses. The POD realized that volume mailers could use the equipment to sort bulk mailings by postal code sequence, bundle it accordingly and deliver it to the post office. This method allowed mailings to bypass as many as six read more