ALS, one page, 8 x 10, November 21, 1845. Secretary of State Buchanan sends a private letter to New Hampshire representative Edmund Burke. In full, “At the request of my much esteemed friend Edward D. Gazzau Esquire of Pittsburg, I refer to you his letter enclosed. Will you be kind enough to enable me to furnish him an answer.” Letter has been professionally inlaid to a slightly larger sheet. In fine condition, with light mailing folds and pencil notations under signature, which could be matted out. COA John Reznikoff/PSA/DNA and R&R COA.