ColSebastianMoran
( IRL Richard Karash )
Still for sale at USPS dot com. Postage rates went up, now about $12.50 per sheet plus small handling fee.
rulnacco
Well-known
I don't think that's necessarily true; while it's not common, Norman Rockwell, Robert Indiana, and Thomas Hart Benton--to name three that I'm aware of--have had their art featured on stamps during their lifetime.You have to be dead before the post office will issue a stamp with your likeness on it, although I'm not sure about an artist's work appearing on stamps before their death.
And while it has long been a "rule" (apparently formally codified in 2018) that no living person may appear on a stamp, this article points out that, in reality, even if they weren't the obviously featured subject of the stamp, over 75 living people have appeared on US stamps. Another example besides those mentioned in the article is most of the stamps depicting Americans in space/on the Moon--while faces were not visible, it's pretty easy to deduce which astronauts were being pictured.