The Ace of Scotland Yard (1929)
From the Universal synopsis: Retired Inspector Blake of Scotland Yard learns that Lord Blanton has acquired the sacred "Love Ring"---a cursed jewel that has brought grief to its previous owners. Prince Darius seeks to obtain the ring, and the mummy of a princess of an ancient country to return them to his homeland.
Released: Sep 30, 1929
Runtime: 215 minutes
Stars: Crauford Kent, Florence Allen, Albert Prisco, Monte Montague, Grace Cunard, Herbert Prior
Crew: Harold M. Atkinson (Scenario Writer), Harold M. Atkinson (Story), Ray Taylor (Director), Henry MacRae (Producer), Alvin Todd (Editor), John Hickson (Director of Photography)