La apisonadora de Mickey

Altough Mickey's Nephews make their third animated appearance in "Mickey's Steamroller" from 1934, this is the first time only two are shown. "Mickey's Steamroller" from 1934 is therefore considered the first identifiable and the most significant animated appearance of "Morty" and "Ferdie" "Fieldmouse", Mickey's twin Nephews from the Mickey Mouse Comic strip by Floyd Gottfredson. This is also their only singular appearance without all of Mickey's Nephews in a Mickey Mouse Cartoon.

Featured in The Mickey Mouse Club: Fun With Music Day - Old Betsy; "The Little Cow"; 'Border Collie' episode 1 (1955)