The appraised work appears to be a set of 3 offset lithograph prints (signed) titled “As I Opened Fire” originally conceived by American artist Roy Lichtenstein (1923-1997) in 1966 and later reprinted by the Stedelijk Museum in Amsterdam. The prints depict an aircraft battle, adapted from Jerry Grandenetti's illustration 'Wingmate of Doom,' from the 1962 comic “All American Men of War,” rendered in the artist’s iconic graphic style with his trademark Ben-Day dots and onomatopoeic text. The estimate provided is based on comparables recently offered and sold at auction. The appraised work's size, composition, medium and condition (based on images provided), as well as the artist's current auction market were taken into consideration when determining the estimate. In many cases, pricing for similar examples available on the primary (retail) market vary, and are often higher than secondary (auction) market examples.