McVitie Weston valve collection, Sylvania valve, type 6D6
- Made:
- 1934
Sylvania valve, type 6D6, pinch marked 29L, (RMW/Y204 - McVitie Weston number), by Sylvania Electric Products Incorporated, 1934.
Sylvania valve, type 6D6, pinch marked 29L, (RMW/Y204 - McVitie Weston number), by Sylvania Electric Products Incorporated, 1934.