I think
Grant might have something for you. He was working on a website a couple years ago.
According to
NH Fire Towers it was privately built in 1929 and then rebuilt 1979.
Built by the Abenaki Tower Association, of Melvin Village, associated with the Wawbeek Hotel and cottages, is was used during World War II for aircraft spotting, and occasionally for fire detection.
Good luck!
RG