Richard Branson signature upon the half-title page of the book, ''Pioneers of Flight''. The aeronautic entrepreneur signs, ''Best Wishes. / Richard (Branson) / X''. In 2021 Branson made history by flying to the edge of space on the VSS Unity, ushering in the age of private space travel. Single page measures 5.25'' x 6''. Near fine condition. With PSA/DNA COA.