Part of the iconic Sherlock Holmes series, Dressed to Kill (1946) has Basil Rathbone starring as the great detective.
Oddly enough, this story focuses on those twinkly little trinkets.... music boxes. A prisoner has been constructing music boxes for sale at auction. Unbeknownst to the auctioneers or those bidding, the boxes contain a desirous secret.
Three boxes are sold to separate people, and the criminals who were supposed to purchase the items were late for the sale. They must track down the purchasers and retrieve the boxes to receive their prize. One such box was bought by a friend of Dr. Watson.
He found himself pummeled in the night and one of his prized music boxes boxes taken. The thieves stole the wrong box, however, and must return to get the correct one... this time with a lovely temptress in tow.
The man is killed, and the box stolen. Sherlock Holmes must determine what is so important about these boxes that one would kill for them.
It turns out the prisoner who made the boxes knew the whereabouts of engraving plates taken from the treasury. With these plates, one could print as much money as they desire. The music played by the three separate boxes contains a code, that when assembled, gives the location of the plates. Holmes uses his keen ear to decipher the discrepancies in the tune to break the code.
He is getting close... too close, and is abducted.
The thieves attempt to put him out of commission.
How will the mystery unfold?
Dressed to Kill- movie trailer