This is one of the few signed examples as noted by Corlett in the catalogue raisonne of the artist's graphic work. Published in Amsterdam, depicting the painting As I Opened Fire (1964) in the collection of the Stedelijk Museum. The first prints were executed in 1966 and it is not clear if these are from that date but it is possible. Literature: The Prints of Roy Lichtenstein: A Catalogue Raisonné 1948-1997, Corlett, pg. 324, App. 5