Vintage 60’s-70’s Mod Half Moon Swivel Chair

One authentic vintage mod / space age/ MCM orb swivel chair. Hard to find. Don’t see any kind of marking to determine the maker . Black fiberglass molded seat- actually super comfortable. Silver tone sturdy and even metal round base - full 360 swivel , smooth and quiet. . Well made- no wobble or shaking. Condition is good for a vintage piece. Some minor nicks on seat, mostly on edges but nothing deep. Base has some oxidation and a couple of indentations. This is for one chair, I actually have 2 if you want a matching pair , let me know. I’m selling for an older gentleman who is having some health issues. **cash or Zelle Asking $185 obo *** $350for the pair.