[Test-Equipment] Bell Labs (Western Electric) tone generator

[J. A Call]

Antique Bell Laboratories (Western Electric) model 81A tone generator. 
Used by phone company
installers to place a tone on telephone lines to identify cable pairs. 
This is a small portable unit
powered by two "D" batteries which are contained in a small case with an
on-off switch and 
4 feet of leads with phone company clips to connect to individual lines. 
Excellent condition.
$25.00 plus shipping.  Photos available if desired.

J