[GreenKeys] [Off-Topic] PDF Documentation Request (related to telephone switching)

[Christian Gauger-Cosgrove]

Hello,

I was just wondering, anyone here have a PDF copy of  "Survey of
Telephone Switching" by the Pacific Telephone and Telegraph Company?


Also, if possible, might anyone have any (PDF) texts related to
Step-by-Step, WECo Panel or No. 1/No. 5 crossbar switching systems?


Thanks for any and all help.

Cheers,
C. M. Gauger-Cosgrove