'Captain Midnight'.
Leonard Frank was one of the many artists who worked on 'Captain Midnight', written by Otto O. Binder. Other artists were Clem Weis-Becker, Lincoln Cross, and Al Bare. The 'Captain Midnight'-character was originally created by radio writers Willfred Moore and Robert Murit in a radio show in 1940. The Captain appeared first in comic form in 1941, published by Dell. In June 1942, Fawcett Comics received the publishing rights, making 'Captain Midnight' a major comic book feature. It ran until September 1948, when the need to fight Nazis and Japanese enemies was no longer of any necessity.
Ad published in 'Captain Midnight', January 1946.