Terrific vintage glossy 10 x 8 photo of the Marx Brothers posing with an enormous horse, inscribed in a calligraphic hand, “Best wishes to our friends at the Los Angeles Turf Club” and signed in fountain pen, “Groucho Marx,” “Harpo Marx,” and “Chico Marx.” Scattered light surface marks, marginal bends and small corner chip (easily matted out), and a hint of subtle rippling, otherwise fine condition. A scarce and highly desirable format with perfect, well-contrasted signatures. PSA/DNA Auction LOA and R&R COA.