Image from MetropolisPlus.com (their website has a great article about the history of the Superman symbol, by the way)
A few things worth noting:
Many of the logo changes occurred during the period between 1938 and 1942.
- The more recognizable version of the Superman symbol is believed to have been introduced by celebrated Superman artist Curt Swan. This version is the second to last version of the Superman logo in the diagram above.
- Swan's version is largely based on the version debuted in 1948.
- Superman's standard uniform logo has not changed drastically since the late 1940s.
Check out the Superman Symbol website for more great info! You can buy Superman symbol toys there!