Hi & blessings to everyone!!

I have what I believe to be a very old pottery mixing bowl. Seen one almost identical to mine a year or so ago on ebay that was astronomically priced. Mine was/in far better condition than the one seen, and I know there must be something special to this bowl as my sister wanted it, and she was an antique PRO! Sadly she has since passed.
The bowl has no markings. It’s approx. 8 inches across. & has 3 rings that go around.
I’ve tried to attach a photo, but not sure I’ve did that part right.
Thanks to all who’ve stopped to listen. Have a great day!
Deb:)