The Magnetic Telescope Max Fleischer/Famous Studios April 24, 1942 [7:38]
You can find more information regarding this film on its IMDb page.
Popeye takes nephews to the Nautical Museum and tells them a story about how he "knocked the tar out" of Sinbad, the greatest sailor in the world. Animation by Tom Johnson and William Henning. Music by Winston Sharples. Produced in 1952.
