Here is a very nice hat, that seems to be quite early, I would estimate 1800-1820s. It is a whimsical piece, possibly used as an open salt, with a neat wide rim! The color is a forest green, and some nice larger encapsulated bubbles. Based upon the glass color and feel, I would suspect New England or Mount Vernon NY? Tough to say where, but it is a special one! Excellent form, size, and condition!