Pulp paper .
Comics in the 1930s were typically made of newsprint paper. This material was cheaper and widely available, allowing for mass production and distribution of comic books during that time. The newsprint paper used in comics had a rough texture and was not as durable as modern comic book paper.
Yes, In fact this was when the superman comics were first released.
comics wern't made until 1939 and they costed 10 cents
Pluto was discover in the 1930's along with the helicopter.
in the 1930's
1930's.
Warner brothers made this in the 1930's
The inside of a 1930 thermos was made primarily from iron with a thin coating of silver.
It was just the way that they were made.
Sometime in the 1930's
Aluminum
1930's
-in the 1930's Albert S. Hyman