by Kevin Levin January 3, 2013 0 USPS Commemorates Emancipation Proclamation 150 Unfortunately, this may be the closest we get to any formal acknowledgement of the 150th anniversary of the Emancipation Proclamation by the federal government. I love the broadside/poster theme and the use of one of the oldest letterpress print shops in the country to create the image. In addition to the stamp, you can also purchase a limited number of signed copies of the poster. Planning on picking up a sheet today. Update: Thanks to the Virginia Civil War 150 Commission for reminding me that the White House released a Presidential Proclamation acknowledging the EP 150.