Bidspirit auction | Andy Warhol / Jasper Johns

Andy Warhol / Jasper Johns / Victor Vasarely / Adolph Gottlieb / Charles Biederman Signed Cover - Pop artists signed First Day of Issue cover of the Modern Fine Arts U.S. 5 cent stamp, signed by multiple artists: Andy Warhol, Jasper Johns, Victor Vasarely,Adolph Gottlieb, Charles Biederman