I've only owned a few Tiffany Studios blownout inkwells over the years and never this model. They're special because the gaffer first started with the metal cage and blew the glass into it. It cannot be removed. Additionally, condition is very important, as it's easy to damage the glass. This example has been treated with kid gloves. It's in impeccably fine condition with no damage to the glass and with a rich original patina to the metal. Larger than the usual inkwells at 7" diameter. Signed.