Man If I wasn't in such a hard place I would hold on to this till I could pass it on to a relative. The person that owned it before me bought it at a bottle show in NYC back in 1986.
And had it for over 30 years. The casting flaw in the bottom can be felt with a fingernail but in no way allows air/liquid in or out of the bottle, it is not a crack! Please let me know if you want any more pics posted. This is the middle of the three sizes.
From my understanding there's only about 100 total of all three sizes in existence. I like to post on the Antique poison bottles, the poison bottle swap and shop and, antique poison bottles collectors association, facebook pages, jasin sandaloud, say hi. The item "Super Rare 3.5 inch medium Cobalt Blue Skull Poison Bottle Antique Vintage KU-10" is in sale since Tuesday, May 21, 2019. This item is in the category "Collectibles\Bottles & Insulators\Bottles\Antique (Pre-1900)\Poisons". The seller is "alaskanvr4" and is located in Anchorage, Alaska.This item can be shipped to United States.