Oriented with north toward the upper left.
"A. Meisel, lith."
"Approved and adopted by the General Court, by Chap. 81 of the Resolves of 1866, and modified according to Chap. 354 of the Acts of 1867 and Chap. 326 of the Acts of 1868."
From: Second Annual Report of the Board of Harbor Commissioners, Boston, 1868.