McVitie Weston valve collection, Mazda valve, type B.S.215
Mazda valve, type B.S.215, (RMW/G70 - McVitie Weston number), by British Thomson-Houston Company Limited.
Mazda valve, type B.S.215, (RMW/G70 - McVitie Weston number), by British Thomson-Houston Company Limited.