Not sure how to test, the cord I have is larger and doesn’t match. See pics for details and condition.
Vintage Western Electric Trimline Brown Push Button Desk Phone Bell System MCM
Vintage Western Electric Bell System Trimline Push Button Phone Chocolate Brown
Vintage Western Electric Cream Wall Phone-Trimline
Vintage Western Electric Bell System Trimline Red Touch Button Phone Untested
Vintage Western Electric Bell System Beige/Cream Rotary Trimline Desk Phone READ
Vintage Bell System made by Western Electric Trimline Telephone Corded
