Up for sale is a very nice and Unique Oiler that you don’t see everyday. It is very possible that this is a new old stock item but I cannot prove that. Gaskets look good From what I can tell, keep in mind they are old and dry. The estate sale this came from everything hadn’t seen the light of day for at least 40 years if not longer. The outer glass could definitely be cleaned up some more, there is some light dirt/scum on the glass and the plastic knobs as well. Please see all pictures for the absolute best description. Has good 1/2 threads. Would look excellent in a Oiler collection. Antique NICE Brass Essex Oiler Lubricator Hit Miss Steam Engine Glass Drip 1/2.