United States
usa-20171020-z-001
page = 1
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Width: 228 mm
Height: 152 mm
Location: Oversize album #11
Stamp ID = 5194
Envelope that contained the First Day of Issue Program, usa-20171020-u-001.
From Linn's "Stamp Issuing Entities Of The World" page.
United States of America (1847-)
Stamp-issuing status: active; Population: 248,709,873 (1990). Republic occupying the central portion of North America, along with Alaska, Hawaii and a large number of island possessions in the Caribbean Sea and the Pacific Ocean.