| |
|
1936 | early
37 | late 37 |
1938 | |
| riveted feet | X |
X | ||
| screwed on feet | X |
X | ||
| reversed network | X |
X | X | |
| very early version 101 network |
X | |||
| vents in handhold |
X | X |
sometimes
| |
| small cradle ears |
X | X |
X | |
| small swithhook buttons |
X | X |
X | |
| E1b handset |
X | X |
X or | |
| F1 handset |
X | X | ||
| number 4 dial |
X | X |
X or | |
| number 5 dial |
X | X | ||
| fiber spacer inside to steady ringer | X |
X | X | |
| flat (only one large bulge) bottom |
X | X |
X | |
| plastic wrapped condenser |
X | X |
| Cradle Phones ! Wall
Phones ! Candlestick Phones |