MERCURY SEVEN (ASTRONAUTS--PROJECT MERCURY.) First Day Cover commemorating the first American orbital spaceflight Signed by the Mercury Seven. Cancelled in Cape Canaveral on February 20, 1962, the date of the Mercury-Atlas 6 mission. 3 3/4x6 1/2 inches; 4-cent cancelled Project Mercury stamp at upper right. Np, nd
MERCURY SEVEN (ASTRONAUTS--PROJECT MERCURY.) First Day Cover commemorating the first American orbital spaceflight Signed by the Mercury Seven. Cancelled in Cape Canaveral on February 20, 1962, the date of the Mercury-Atlas 6 mission. 3 3/4x6 1/2 inches; 4-cent cancelled Project Mercury stamp at upper right. Np, nd
.jpg?w=400 "Source: Christie's")
.jpg "Source: Christie's")
.jpg "Source: Christie's")
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
