Hi Buck,
The only reason I know what it is, is because I found one recently and had to do research on it. Its called a batter jug. Although thats what its called I personally cant see how it was convienent to use. I have no idea of value. Hope that helps.
So - I agree with you surfaceone. I agree with your evaluation. I also like that batter jug you pictured - is that in your collection. I am going to wave the picture - if i can - to take it to NY for analysis of my jug man there.