Esterbrook Advanced Flo-Master (2019-0531-20)
Esterbrook Advanced Flo-Master marking pen in brushed, ringed chrome. Pen looks to be new old stock with one unused felt tip. This pen was filled like an eyedropper filler and through pressing on the tip opened a valve in the section to release the special ink for the pen. As the ink for this pen is no longer available, it is unknown whether any particular ink will work in this pen. Sold AS-IS for collectible purposes only. If you can get it to write, terrific!