That would be THE KID FROM BORNEO, from 1933, and as far as I know, not in the public domain. I'm not a copyright law expert by any means, but I remember reading ten years back any film before 1923 is public domain, which is why you see any early to mid period silent in cheap public domain copies as well as well restored prints.
1933, though. Definitely a lot of films from then still owned by someone.
By the way, that's one of my favorite OUR GANG shorts.