I buy the Pitkin inkwells whenever I can, because they don’t come up very often! As I mentioned before, you will see a dozen Pitkin flasks before you see one inkwell. Here is a nice example, 1780-1830, probably Connecticut or New Hampshire. This one is 36 ribs swirled to the right, and looks to be a direct match to Covill 1153 (probably the same inkwell). This one belonged to Ray Dywer, and William Covill before that. It has a “WC 1056” tag on the base. Olive amber color, nice rib definition, solid glass pontil base, nice disc lip! There is a very small lip edge flake, other wise perfect. If you don’t want to pay $2000 or more for an example, here is a very nice alternative!