I was thinking non bottle because the style of inks at the time were normally tappered more, the didnt follow the same lines as a toc cone ink and because non bottle objects were common in pattern mold, along with barber type bottles which really fall into thier own class, kind of between bottle and utilitarian whimsey... The top of the piece you found looks like it kept going...
That is an odd one Josh.. It is not what I had pictured when you were describing it .It could be an ink although I think it would be way to trouble to blow a one time use ink bottle in a pattern mold like that. There are pattern mold inks, some even blown in Ohio but they are generally squattier "wells" that were made to be reused. That one seems like it would be a little tall for that application. If it was infact a pattern mold ink from Zanesville or another Ohio glasshouse it would likely be the earliest known "cone" ink. I hope you can find the top.
I guess I'll have to go back and undermine that house some more. Hope that tree stays above ground.[] Anyone have any pics of possible shapes for this bottle, or ideas of its origin?
I dont know of anything it really looks like, but my guess would be a type of small stem vase, or and odd long necked barber bottle, possibly a pinch waist Cologne, although it would of been large...
inks of the time would of been more tappered, about where yours is broken they close into a small neck, or like Doug was saying more squat or dougnut like with broad shoulders...