Click on image for a better view:

Unique President U.S. Grant autograph and engraving as President. Grant has signed in pencil above the words "Central Music Hall" and below the words "Wednesday Evening, May 18, 1881".
Mount and autograph measure 4.75" x 3.25", and has wear as shown in the scan.
Worthy of further research, both items would frame beautifully together.

$575.00 plus shipping