Regal Zonophone Records was a British record label formed in 1932, through a merger of the Regal and Zonophone labels. This followed the merger of those labels' respective parent companies - the Columbia Graphophone Company and the Gramophone Company - to form EMI. At the merger, those records from the Regal Records catalogue were prefixed 'MR' and those from the Zonophone Records catalogue were prefixed 'T'.