This is a small one - only 10” wide and 12” high. The base at the leg bottom is wider than the top. I believe that these were originally from a nesting set.
A Small 19th Century Antique Wooden 3 Legged Stool
Antique Welsh 19th Century Sycamore Make Do And Mend 3 Legged Stool
Antique 3 Legged Stool With Poker Work Top
Tiger Oak Seat ???????? Bobbin Turned 3 Legged Stool ????????
Victorian wooden painted 3 legged stool
Minton factory oak 3 legged stool with provenance - Potteries industrial antique