The crew of Apollo 15 not only signed the backside of the flown $2 bills, but they also had very attractive flight certification parchments made, detailing the flight status of each bill by serial number. The crew then authentically signed each certificate.
Apollo 15 Flown Flight Certification
The crew of Apollo 15 not only signed the backside of the flown $2 bills, but they also had very attractive flight certification parchments made, detailing the flight status of each bill by serial number. The crew then authentically signed each certificate.