I am parting-out my Western Electric model 701 step-by-step PBX.
This is the one that was destroyed by Estes Freight Lines.
Parts available include L & CO relays, in strips of 10-lines' worth,
and LF, SEL, and CONN switches and associated banks.
Please contact me off-forum for more info.
email info-@-SIBTA.com (remove dashes)
anytime between 0900 and 2300 Eastern (USA)