Adventures of Sam Spade for the first time.
In this summer replacement series, Howard Duff starred as the radio detective from San Francisco. In 1930,
Sam Spade appeared first time for the Dashiel Hammett novel ‘The Maltese Falcon’ and original film version of ‘The Maltese Falcon’ was featuring by Ricardo Cortez in 1931. In 1941, Humprey Bogart performed as Sam Spade in this movie.
Enjoy this 1948 Sam Spade radio broadcast of "Hot Hundred Grand Caper":