Items appraised include a collection of original blueprints the USS Maine; a wooden airplane propeller from a 1944 Fahlin airplane; and a vintage Gillette travel razor kit, circa 1910, owned by the Shah of Iran, brought in by a man who acquired it from a friend of his father's who lived in Iran in the 1950s. In a crossover with other History programs set at the Sturgis Motorcycle Rally, the Harrisons prepare to give Chumlee the Harley-Davidson FXR for his 30th birthday, but not before leading him to believe that they forgot his birthday, and giving him mundane chores. Danny Koker of Counting Cars has a cameo.