This is a 8¢ olive green stamp featuring George Washington, issued in 1908-09.

This is a 6¢ red orange stamp featuring George Washington, issued in 1908-09.

This is a 5¢ blue stamp featuring George Washington, issued in 1908-09.

This is a 3¢ deep violet stamp featuring George Washington, issued in 1908-09.

This is a 4¢ orange brown stamp featuring George Washington, issued in 1908-09.

This is a 2¢ carmine stamp featuring George Washington, issued in 1908-09.

This is a 1¢ green stamp featuring Benjamin Franklin, issued in 1908-09.

This is a 1¢ buff stamp featuring Benjamin Franklin, issued in 1880-82.

This is a 30¢ ultramarine & carmine stamp featuring Eagle, Shield & Flags, issued in 1875.

This is a 90¢ carmine & black stamp featuring Abraham Lincoln, issued in 1875.