Three cheap musical boxes (each one playing a subtly different version of "The Swagman"), manufactured in Dartmoor Prison, are sold at a local auction house.

However, a criminal gang is determined to steal and recover all three, even if it means committing murder.

Sherlock Holmes tries to recover the music boxes and crack the secret code contained in the tune before the gang can get what they want.

This version is slightly better quality that the other versions available on the Internet Archive.

Copyright Status: PUBLIC DOMAIN Registered for copyright under LP360 on 13 May 1946.

Date : 1946
Cast : Basil Rathbone as Sherlock Holmes
Nigel Bruce as Dr.

John H.

Watson
Patricia Morison as Mrs.

Hilda Courtney
Edmund Breon as 'Stinky' Emery (as Edmond Breon)
Frederick Worlock as Colonel Cavanaugh (as Frederic Worlock)
Carl Harbord as Inspector Hopkins
Patricia Cameron as Evelyn Clifford
Holmes Herbert as Ebenezer Crabtree
Harry Cording as Hamid
Mary Gordon (actor) as Mrs.

Hudson
Ian Wolfe as Commissioner of Scotland Yard
Anita Sharp-Bolster as the Schoolteacher on a Museum Tour