This Autographed Dated August 29, 1845 Auto Graded Mint 9! 7.5x9.25 Hand Written Letter has been Personally Signed by James K. Polk. This item is 100% Authentic, it comes slabbed and authenticated by Beckett Authentication Services. The authenticity can be verified on Beckett Authentication Services website. The letter reads in full: "Hon. Wm. L. Marcy / Sec. of War / D. Sir / This note will be handed to you by Mr. Dorsey of Maryland, whom I take pleasure in introducing, to you. Mr. Dorsey is a very worthy and highly respectable gentleman, and calls to see you on business connected with your Department. Will you do him the favour to see him this morning?"