 |
1938 Model 'W 38' Automatic table telephone, introduced in 1938 - case and handset of bakelit - telephone and carbon microphone - induction coil - dial switch - polarized ringer - capacitor |
|
1938 Model 'W 38', Automatic wall telephone, introduced in 1938 - case and handset of bakelit - telephon and carbon microphone - induction coil - dial switch - polarized ringer - capacitor |
 |
 |
1948 Model 'W 48', Automatic table telephone, introduced in 1948 - case and handset of bakelit - telephone and carbon microphone - induction coil - dial switch - polarized ringer - capacitor |
|
1949 Model 'TiWa 49', Table or wall telephone, introduced in 1949 - case and handset of bakelit - telephon and carbon microphone - induction coil - dial switch - polarized ringer - capacitor |
 |
 |
1951 Model 'W 51', Automatic wall telephone, introduced in 1951 - case and handset of bakelit - telephone and carbon microphone - induction coil - dial switch - polarized ringer - capacitor |