Overview
A convicted thief in Dartmoor prison hides the location of the stolen Bank of England printing plates inside three music boxes. When the innocent purchasers of the boxes start to be murdered, Holmes and Watson investigate.

A convicted thief in Dartmoor prison hides the location of the stolen Bank of England printing plates inside three music boxes. When the innocent purchasers of the boxes start to be murdered, Holmes and Watson investigate.

Sherlock Holmes

Dr. John H. Watson

Mrs. Hilda Courtney

Colonel Cavanaugh

Hamid

Inspector Hopkins

Ebenezer Crabtree

Julian 'Stinky' Emery
Evelyn Clifford

Mrs. Hudson

Commissioner of Scotland Yard

Tour Guide

Antique Shop Assistant (uncredited)

Detective at Murder Scene

Photographer

Joe Cisto

Pub Patron (uncredited)

Convict at Dartmoor Prison (uncredited)

Cab Driver (uncredited)

Alfred - Auction House Bookkeeper (uncredited)

Pub Patron (uncredited)

Minister's Wife (uncredited)
Pub Patron (uncredited)
Crabtree's Assistant at Auction (uncredited)




















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