Harpo Marx for the name Adolph (as a child, he was routinely called "Ahdie" instead). The name change may have also happened because of the similarity between Harpo's name and Adolph Marks, a prominent show business attorney in Chicago. Urban legends stating that the name change came about during World War I due to anti-German sentiment in the US, or during World War II because of the stigma that Adolf Hitler imposed on the name, are groundless. His first screen appearance was in the film "Humor Risk" (1921), with his brothers, although according to Groucho, it was only screened once and then
Louis Marx and Company molding tools going to a few other toy manufacturers of the time, including the Mego Corporation. Some popular Marx tooling is still used today to produce toys and trains. A company called Marx Trains, Inc. produced lithographed tin trains, both of original design and based on former Louis Marx patterns. Plastic O scale train cars and scenery using former Marx molds were previously produced by MDK and are now marketed under the "K-Line by Lionel" brand name. Model Power produces HO scale trains from old Marx molds. The Big Wheel rolls on, as a property of Alpha International, Inc. (Cedar