2 Science & Technology

NOTE: For close-up of condition, double-click the image
Link to  Copernicus 500th Anniversary Commemorative StampUnited States, 1973  Product
Copernicus 500th Anniversary Commemorative Stamp Product Link
United States, 1973
40 x 30 in (102 x 76 cm)
$125
Link to  The Sparks of GeniusUnited States, c. 1973  Product
The Sparks of Genius Product Link
United States, c. 1973
40 x 30 in (102 x 76 cm)
$90