American collectors would call that U.S. Scott number 1282. It has a catalog value of 20 cents, mint or used.
Need more information to identify the stamp! I haven't been able to identify an 19 cent with a profile. The 19 cent stamp of the presidential series contains the profile of Rutherford Hayes, the 19th president.
thomas and nancy lincoln
A profile bust of Queen Victoria was pictured on the first postage stamp.
Mary Cassatt
4 cents
1866
1 cent.
Sorry, it was issued in 1989.
3 cents
four cents
3 cents
1961