880:: Stamp 1928 red 2c unused, International Aeronautics Conference
First Day of Issue: December 12, 1928
First City: Washington, D.C.
Quantity Issued: 51,342,273
Printing Method: Flat Plate Press
Perforation: 11
Color: Carmine rose
USA 1928 c.Reference number: 2021.0880sw
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