Library gives map collection a new direction
John Tlumacki/ Globe staff
A rare map of Boston inscribed into an oxen powder horn, 1775
The horn is also inscribed with the names of its owner, a British soldier, and the words, A Pox on rebels in their Crymes.
The horn is also inscribed with the names of its owner, a British soldier, and the words, A Pox on rebels in their Crymes.

