From 1940 to 1943, Rex Parker starred in his own pulp magazine! He wore a mask and he was a detective so, of course, he was known as the Masked Detective. On a quarterly basis, he battled criminals and spies and saved kidnapped women. He was a popular detective but not even he could survive the World War II paper shortage. Though his magazine was discontinued in 1943, Rex will live forever on the covers.
Here are a few of the adventures of Rex Parker. When known, the artist has been credited.