of Martineau Street, Birmingham
1908 August. Details of a gearless magneto.[1]
1913 Sthenos carburettor
1914 Maker of the J. A. R. Cyclecar[2]
1953 Directors: P. H. Ryley (Governing). J. Ryley (Sales Manager). Technical Representative: L. S. Lee, M.I.M.I. Representative: H. B. Woollons, A.M.I.M.I. Service Manager: F. W. Cambridge.
1963 Motor Show exhibitor. Garage equipment [3]