?71 BLACK BEAUTY Original Lobby Card Set Mark Lester Walter Slezak Patrick Mower. Includes complete set of eight. Each lobby card measures 11? x 14?. Very good condition, clean,some wear/age. Some oxidation from age. Excellent color, suitable for framing. See photos for more information. The product is a set of original lobby cards from the 1971 film Black Beauty, featuring actors Mark Lester, Walter Slezak, and Patrick Mower. Lobby cards are collectible pieces of entertainment memorabilia that were used to promote the film during its release. These authentic cards offer a glimpse into the movie's iconic moments and stars, making them a valuable addition to any movie memorabilia collection.