I have the signatures of the three bombardiars on two Silver Certificate $1.00 bills. Major Thomas Ferebee- Hiroshima, Capt. w. Behan- Nagasaki and Major H. Wood-Bikini. My father was a bomber pilot in WWII (and Korea and Viet Nam)He has had them frame in his study for 60 years. i want to sell them to somebody that will appreciate them. Yes, they are authentic. I can forward photos. vetmedtexas@suddenlink.net the two bills are not copies, as the signatures are not exactly alike but they are the same people.