Roy Lichtenstein (1923-1997) WHAAM! (diptych), conceived 1967 Offset lithographs in colors on wove paper 25 x 28-1/2 inches (63.5 x 72.4 cm) (each sheet) Published by The Tate Gallery, London Printed by Lautrec Photo Litho Ltd., Leeds, United Kingdom LITERATURE: Corlett, App. 7. HID12401132022 © 2024 Heritage Auctions | All Rights Reserved