The U.S. Post Office issues this Classics Forever souvenir sheet in celebration of the long history of the U.S. postage stamps-and in appreciation of stamp collectors and philatelists everywhere. The elaborately designed sheet features handsome new versions of six stamps first issued in the mid-19th century. The stamps are printed using the intaglio printing method, as were the originals.
The Classics Forever stamps will be issued as Forever® stamps.
You can read more about the Classics Forever stamps here.