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             By Whose Hand? 
            Also known as The Mystery of Mr. Marks in the United Kingdom 
            (1914) England 
            B&W : Three reels / 693 metres 
            Directed by Warwick Buckland 
            Cast: Alma Taylor [Isobel Denton], Lionelle Howard [Gerald Lee], Edward Lingard [Mr. Marks], Stewart Rome [the detective], Cecil M. Hepworth [a motorist], Ruby Belasco [a woman at the party] 
            Hepworth Film Manufacturing Company production. / Produced by Cecil M. Hepworth. / Standard 35mm spherical 1.33:1 format. / The film was released in the USA by Box Office Attractions Company in [?] March or April? 1914. 
            Drama: Crime. 
            Survival status: (unknown) 
            Current rights holder: (unknown) [United Kingdom]; Public domain [USA]. 
            Listing updated: 19 August 2025. 
            References: Tarbox-Lost p. 208 : MoPicNews-19140404 p. 16 : Website-IMDb. 
            
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