"Brattleboro's "Main Street" is unique because the town itself is so - "there's only one Brattleboro in all the world." The discovery of that uniqueness was made by author Freeman Tilden, former resident of Brattleboro. More than twenty-five years ago he took his family for a season to the Isle of Jersey in the English Channel. There he had occasion to send a cablegram to me. Although he naturally addressed it to Brattleboro, Vermont - the cable clerk after consulting his records, said Mr. Tilden could save a word by crossing out "Vermont," because there was "only one Brattleboro in all the world." The Brattleboro Business Association promptly adopted it as a slogan."
- Charels Edward Crane writing in a 1955 copy of "with interest"
You can find all of the "with interest" booklets in the Brain Trust: