I remember having a couple of these Superman cartoons from the early 40's on a Beta tape (yep ) growing up. But I just found the whole series of 17 on Netflix and... omg.
[VIDEO]http://www.youtube.com/watch?v=rsk1KmGG5Dg]YouTube - ‪Superman - Japoteurs‬‏[/VIDEO]
[VIDEO]http://www.youtube.com/watch?v=squbp0WXWto]YouTube - ‪Superman - Jungle Drums‬‏[/VIDEO]
I love these cartoons. The 1940s era Superman cartoons were well ahead of their time. They're just awesome to watch.