The product is a set of three US Airmail stamps featuring the Trans-Pacific Clipper plane, issued in 1935. These stamps are mint with very light hinge marks, original gum, and are certified as very fine condition. The stamps belong to a specific category within the United States stamps collection, specifically focusing on airmail and the Trans-Pacific Clipper route. This set is a valuable addition to any stamp collector's portfolio, showcasing a piece of aviation history through philately.