BOSTON, MASS.- "What I will never forget, Mikhail, is our partnership—and eventual friendship—as we worked to make our world a better, safer place"

A George H.W. Bush letter to Mikhail Gorbachev will be auctioned by Boston-based RR Auction.

The one-page typed is signed "George," personal letterhead, October 18, 2011. Letter to former President of the Soviet Union Mikhail Gorbachev, in full: "Even though I could not be with you tonight, I wanted to help welcome you to the great state of Texas. I know our good friends at the Johnson Library will make you feel right at home. At age 87, I forget more things these days than I remember. But what I will never forget, Mikhail, is our partnership—and eventual friendship—as we worked to make our world a better, safer place. There is no doubt in my mind that history will judge you one of the great leaders of the 20th Century. I hope our paths cross again soon so we can catch up with each other. Until then, take care and enjoy your time in Austin."

"It's a unique and intimate letter between leaders," said Bobby Livingston, Executive VP at RR Auction. "The collaboration and ensuing relationship forged by Bush and Gorbachev finalized the decades-long Cold War between the Soviet Union and the United States." (Estimate: $10,000)

The letter is among a presidential sale featuring nearly 300 items that includes; locks of George and Martha Washington's hair, a remarkable Abraham Lincoln signed photograph, John F. Kennedy's Harvard sweater, Andrew Johnson's order for a day of mourning after Lincoln's assassination, and the pen that ended US involvement in World War I. Letters and documents of enormous historical significance abound in this impressive, focused auction.

The Presidential Auction from RR Auction will begin on February 11 and conclude on February 18.