McVitie Weston valve collection, Sylvania valve, type 6D6
- Made:
- 1934
Sylvania valve, type 6D6, marked U.S. NAVY, (RMW/Y496A - McVitie Weston number), by Sylvania Electric Products Incorporated, 1934.
Sylvania valve, type 6D6, marked U.S. NAVY, (RMW/Y496A - McVitie Weston number), by Sylvania Electric Products Incorporated, 1934.