DS, one page, 7.5 x 7, Trustees of the Astor Library letterhead, January 1856. Donor certificate issued to Brigadier General J. Watt DePeyster confirming receipt of a 'copy of Reports to the Governor of N. Y. on the Military System of Europe.' Signed by Irving as president of the Trustees. Double suede matted and framed with a portrait of Irving and a biographical plaque, to an overall size of 22.5 x 20.5 In fine condition, with some scattered light toning and soiling and a horizontal fold. RRAuction COA.