The listing, Mint NH OG 1925 Flat Plate Perf 11 20¢ - US Scott # E14 has ended.
          Mint never hinged with original gumming
1925 Flat Plate Perforation 11 - 20¢ - US Scott # E14
U.S. #E14
1925 20¢ Post Office Truck
Special Delivery
Issue Date: April 25, 1925
City: Washington, DC 
Quantity: 30,073,400 (estimated)
Printed By: Bureau of Engraving and Printing
Printing Method: Flat plate printing
Perforations: 11
Color: Black 
Special Delivery stamps were pre-payments added to the regular “lawful postage” for an extra service – immediate delivery of a letter within one mile of any special delivery post office.  These special post offices were those with free routine delivery service or in larger communities with 4,000 or more people.  
First available in 1885, the Special Delivery service was extremely popular.  At first, the service was available from 7 a.m. to midnight.  The following year, the hours changed from 7 a.m. to 7 p.m.  The service was so successful that in 1886, every U.S. post office began to offer Special Delivery.
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