His final piece of graphic design was a poster for the New York Peace Campaign in 1969: an ace of spades playing card is laid on a plain white background with the letters "PE" hastily scribbled to the left of it and a question mark to the right.
For the New York Peace Campaign in 1969, his concluding graphic design was a poster featuring an ace of spades playing card on a plain white backdrop. The letters "PE" were scrawled quickly to the left, while a question mark appeared to the right.