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| WALL
TELEPHONE AUTO
As N20543 but fitted with a metal wall bracket.
Introduced around 1937. Click here on how to identity different models and circuit diagrams |
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Last revised: March 05, 2022FM2 |
|
| ||||||
| WALL
TELEPHONE AUTO
As N20543 but fitted with a metal wall bracket.
Introduced around 1937. Click here on how to identity different models and circuit diagrams |
||||||
Last revised: March 05, 2022FM2 |
Bakelite wall telephone fitted with induction coil, rectifier and relay arranged
for ringing an external DC bell.