ALS signed “U. S. Grant, Gen’l,” on the front panel of a 5.5 x 3 Headquarters Army of the United States Official Business envelope, no date (however it is likely war-dated, as he has added his rank). Short letter of introduction to an unidentified recipient. In full, “This will introduce to you Mr. A. B. Cerbin, of New York City, the gentleman from whom I got my residence. Mr. Cerbin calls on business which he will state. Please see him.” In fine condition, with a couple trivial brushes to text, and a bit of scattered subtle toning. Auction LOA John Reznikoff/PSA/DNA and R&R COA.