Alex Ross X-Men Lithograph: In Homage to Dave Cockrum 21/2500. This piece was custom framed with high quality museum glass. Dimensions are 24 x 34 inches. The item “Alex Ross X-Men Lithograph In Homage to Dave Cockrum 21/2500″ is in sale since Tuesday, April 3, 2018. This item is in the category “Collectibles\Comics\Posters”. The seller is “mediacollector” and is located in Kirkland, Washington. This item can be shipped to United States.