Lithograph on paper, image size 15” x 21” Adapted posthumously from the pre-production large-scale illustration for the 1954 book Horton Hears a Who! Audrey Geisel allowed the Horton Line Drawing to be published for the first time in association with the Art of Dr. Seuss Retrospective and International Touring Exhibition, which was launched in 2004. Horton’s seminal proclamations: “I meant…