This souvenir sheet is issued in celebration of the long history of U.S. postage stamps — and in appreciation of stamp collectors and philatelists everywhere. The elaborately designed sheet features new versions of six of America’s earliest and most alluring stamps, now issued as Forever stamps to make them easily distinguishable from the mid-19th-century originals.

From top, left to right, the stamps featured are:

George Washington stamp, first issued in 1851 at 12 cents. Portrait based on a painting by Gilbert Stuart. Stamp originally engraved by Toppan, Carpenter, Casilear & Co.

Benjamin Franklin stamp, first issued in 1851 at one cent. Portrait based on a bust carved by Jean-Jacques Caffiéri. Stamp originally engraved by Toppan, Carpenter, Casilear & Co.

George Washington stamp, first issued in 1860 at 24 cents. Portrait based on a painting by Gilbert Stuart. Stamp originally engraved by Toppan, Carpenter & Co.

George Washington stamp, first issued in 1860 at 90 cents. Portrait based on a painting by John Trumbull. Stamp originally engraved by Toppan, Carpenter & Co.

Abraham Lincoln stamp, first issued in 1866 at 15 cents. Portrait based on a photograph by Christopher Smith German. Stamp originally engraved by National Bank Note Co.

Benjamin Franklin stamp, first issued in 1861 at one cent. Portrait based on a bust carved by Jean-Antoine Houdon. Stamp originally engraved by National Bank Note Co.