
McVitie Weston valve collection, Osram valve, type D.E.R.
- Made:
- circa 1924
- maker:
- Osram

Osram valve, type D.E.R., 4-pin black moulded MOV base, (RMW/C22B - McVitie Weston number), by Osram, c. 1924.
Osram valve, type D.E.R., 4-pin black moulded MOV base, (RMW/C22B - McVitie Weston number), by Osram, c. 1924.