Thank YOU, Bill G!
Dug this router out to (perhaps) put some extra T+G in some salvaged oak flooring, as I fit the jigsaw puzzle together.
Also found a 76-400 router table and a 76-320 guide (without the threaded rods, but not a show-stopper).
All donated by a friend/client, from her old Dad's tools in her house, and the nice 'Router Craft' book from B+D (by George R. Drake, Part#76-300, Rev.4. 5/80) which covers several uses and handy jigs. Some on Amazon for $1.99 spiral-bound.
I only had a Craftsman (that I've used a few times, and bits), so more capability, if it goes together and (still works!)