I'm at the Indiana show. What is this? There's a paper tag that says 301a2 value?
It's a 301 type KSU, using 1A1 technology (relays rather than plug-in cards.) 4 lines, pick-up and hold, with a manual intercom unit as part of the interrupter section. It will operate just like a 1A2 KSU with WE, ITT, or S-C key sets. You can add a 207 dial intercom to the bottom rail. In fact, the wiring harness for the 207 is probably right there, stored away. Probably worth up to a max of $100 unless you really really really want it. I've seen them go for as little as $50 and as much as $150. The 20B2 power unit next to it is required to make it work. Hope this helps.
Thanks for the info. After I posted the ID question I found a fully equipped WECO 551C. With ring gen and power supply. $40. We tested it and it seems good. I think that was a good deal.
I think I paid $40 for just my ring generator. Well bought!
I want that 1A1 unit! I have never seen 1A1 in that relatively modern apparatus cabinet.
Terry