In February 2008, the National Postal Museum received a major Smithsonian grant to digitize its certified plate proof collection. In this video the Smithsonian Channel tells the story from start to finish.
Read more: http://npm.si.edu/collection
In February 2008, the National Postal Museum received a major Smithsonian grant to digitize its certified plate proof collection. In this video the Smithsonian Channel tells the story from start to finish.
Read more: http://npm.si.edu/collection