McVitie Weston valve collection, Moorhead valve, type R
Moorhead valve, type R, marked 2745, (RMW/B58 - McVitie Weston number), by Moorhead Laboratories (Pacific) Inc..
Moorhead valve, type R, marked 2745, (RMW/B58 - McVitie Weston number), by Moorhead Laboratories (Pacific) Inc..