Signer of the U.S. Constitution from Massachusetts, senator, Ambassador to Great Britain, and unsuccessful presidential and vice-presidential candidate. ALS, one page, 7.75 x 9.5, January 6, 1817. Letter to Henry Newcomb. In part: “As yet I have taken no step respecting your wishes, nor am I sure that I can do so without any imputation of being useful. I have but little acquaintance, and a great deal of something a little different from respect…of the Navy. With Com, Rogers I have no intercourse. I will think more on this matter.” Integral second page bears a hand-addressed and free franked address panel, franked in the lower left, “Free, Rufus King.” Intersecting folds, light overall toning, with a few heavier spots to right edge, partial separation of integral pages, and soiling, pencil notation and small paper loss to second integral page, otherwise fine condition. RRAuction COA.