Thanks for the link Philip, I was just getting ready to look it up! The slightly cleaned bottle will be on display in the museum.
It's interesting to consider that the bottle may have been in what was once pasture because it was tossed from a passing train. It's amazing that the bottle is intact. What saved it is that the long-ago person who used it took the time to put the stopper back in which prevented water from getting in which would have frozen and shattered the bottle. It's also amazing that tree root growth around it did't break it. The final thing is that the bottle was not broken by machinery clearing the site. Thanks to Mike for spotting this bit of history and bringing it back to Sheepscot, a trip that it waited over 100 years to take.