Thanks for the photo, Bruce. However, the suggestion in the caption that the boxcar came from Edaville is incorrect. I don't think there were ever any SR&RL freight cars at Edaville, though there were several SR&RL passenger cars there (all now at the Maine NG Museum in Portland).
According to Jones in
Two Feet Between the Rails, boxcar 125 was sold in 1932 to Starbird's Mill in Strong (where most of the surviving SR&RL boxcars ended up, used for storage at the sawmill I believe), and was later purchased by Ray Huff of Strong, but how it then found its way to New Hampshire I don't know.
Boxcar 125 was built in 1912 by the MEC Thompson's Point shops, length 27'6" with a capacity of 30,000 lbs, and fitted with end doors for grain service.
-Philip Marshall