Ringer and Network dates are from 1960.
This phone was refurbished in January 1975.
1-75 (date phone refurbished)
I 60 (C4A Ringer)
3-60 (425B Network)
1974 (handset cord)
no date (line cord)
Handset with ear caps removed
H2 74 SI (ear cap with seven holes-- receiver / upper end)
6-14-62 (ear piece-- receiver / upper end)
11-65 (ear cap-- transmitter / lower end)
2-26-68 D (ear piece-- transmitter / lower end)
72 (inside cover)
3-60 / R I 70 (7C dial)
For wiring diagrams of other phone models or years, see the Documents & Resources and Links pages.
The project / repair links on this website can be found here (in order of repair):
To start from the beginning, click here:
Network Wiring