Bought a weird ceramic jar at a spring estate sale. It has a lid with a finger sized hole in the center and hand painted flowers. No smells, completely empty inside. Anyone know what this thing is?

and skill. The flowers, painted in soft hues of pink and blue, add a touch of elegance and beauty to the jar’s overall appearance. The most perplexing feature, however, is the lid. It fits snugly on top of the jar and has a perfectly round hole in its center, about the size of an average human finger.
This peculiar design element immediately caught my attention and raised several questions. Why would a jar need a hole in its lid? What purpose could it possibly serve? With no immediate answers, I