Help ID potter's seal mark on lovely US studio bowl

Hi everyone, probably a longshot but wondering if anyone recognizes the impressed potter's seal mark on my small studio pottery bowl.  Measures 4" H x 5.5" W.  I've owned it for about 20 years, purchased in Chicago.  Thanks for having a look!

I’ve come across the mark before but unfortunately it’s not on The Marks Project website of US studio pottery marks so it’ll take a bit more time to track it down

Appreciate the response, Naomi. If you are able to track it down, I would LOVE to know. I've been looking for years...