If you are looking for a great example of Boston's, this is it.

Great display with a big bubble in front.

And it is VVNM, just the start of one tiny thread section missing, and I believe it didn't fill completely when made. Hard to notice it. I haven't seen a better one !

This is CD 158 [20}, Boston Bottle Works/Patent Applied For

I'll take $ 675 plus shipping.