5X8 B&W Glossy photograph signed in black felt tip ink, "To Jim, Thank you so much for your sincere interest in Aviation and the SR72 World Speed Record- London to Los Angeles, 13 Sep 74, 3hrs, 47 min, Sincerely Bill Machorek, Major USAF, SR 71 RSO." Crease to the upper left corner, otherwise excellent.This lot came from the Jim Wiggins collection we purchased in July 2022. Jim Wiggins accumulated the most unique and valuable autograph collection over a period of 70-plus years. He obtained his collection either in person or by writing to persons of fame and notoriety. Comes with a full Letter of Authenticity from Todd Mueller Authentics.Comes with a full Letter of Authenticity from Todd Mueller Authentics if the lot sells for $10 or more.