Mark Saber.

A half-hour 1950s detective television series that took different forms and titles during its run. From October 1951 to June 1954, ABC Mystery Theater stars Tom Conway as the titular character, a plainclothes English detective working with the NYPD Homicide Division. The Vise (seasons 1–4): Donald Gray portrays Saber as a one-armed private detective based in London. Broadcast on ABC from October 1954 to June 1957. Saber of London (seasons 5–7): Gray reprises his role in this final iteration, broadcast on NBC from September 1957 to May 1960.