Contrara pedestal MK 1, by Jennings research Inc.

Contrara pedestals  MK 1, three-way acoustic suspension speaker system by Jennings research Inc.  These are a pair and I’m trying to get some info on their value and if there’s anyone in the Chicago area that buys vintage speakers.
Those were great sounding speakers in their day if i have the right model.. maybe 3 to 3 and half feet tall, 1 tweeter and two mid bass drivers and they swiveled.. I cannot recall what they sold for though. long time ago.. late 70's i think.