Unsigned ink sketch of a nude couple on a galloping horse, with the woman pointing in horror to an unseen menace in front of the horse, drawn by Silverstein on an off-white sheet of light cardstock trimmed to a size of 6.75 x 4.5. In fine condition. From 1957 to 1968, Silverstein created 23 travel installments for Playboy magazine called "Shel Silverstein Visits…" One of his locations was a New Jersey nudist colony, and this sketch may have been used for his Playboy travel series. Accompanied by an unsigned 50th anniversary edition of The Giving Tree.