Bell System wrench found today

[bgarrett]

As a Viet Nam Era veteran, I learned some Army-speak in my 2-years.  CO meant commanding officer.  CO meaning Central Office must be a regional usage, but what region I do not know.

Every region.
Every tiny community had a Central Office and cities had many. 
Just like every job in America, the telephone employees had their own code to refer to things. Even tho violet is a light shade of purple, they called dark purple wires 'violet'.

[Wrenchmensch]

So, what is WEco?

[international3414]

western electric,??

[rusty]

weco - yea, Western Electric co, makers of all kinds of assorted telephone stuff....

[burnsie]

I've seen (and have) several Bell System screwdrivers...but I've never seen a wrench so marked. Different!

There must be hundreds of different quality vintage tools out there marked Bell system. I have pliers marked Bell System on one side and Klein, Cresent, or Utica on the other.  In addition I have several files, hammers, and mechanical pencils marked Bell but without a manufacturers name. I also have a Bell first aid kit green metal case the previous filled with wood screws (it has compartments in it).