Osram valve, type NR44, marked A.P. 3832 ZOSJ, gettering plate loose, Osram type Z8216, (RMW/Y498A - McVitie Weston number), by Osram, 1938.
Osram valve, type NR44, marked A.P. 3832 ZOSJ, gettering plate loose, Osram type Z8216, (RMW/Y498A - McVitie Weston number), by Osram, 1938.