The Adventures of Superman – “Threat to the Planet Building” (1940)
“The Yellow Mask” attempts to end Lois Lane’s life and the conflict between Superman and this dastardly villain finally comes to an end.
The Adventures of Superman – “Atomic Fuel Cylinders Stolen”
Dr. Dahlgren’s Atomic Beam fuel cylinders have been stolen by “The Yellow Mask.” The Adventures of Superman – “Atomic Fuel Cylinders Stolen” – February 28, 1940