CHALLENGER STS-51B Cover. Signed by CHALLENGER STS-51B Astronaut: DON LIND . He was Selected as a SCIENTIST ASTRONAUT in 1966., Group 5. He trained as an APOLLO LUNAR MODULE PILOT and Could have made a Landing on the MOON, but budget cuts canceled the Later Apollo Missions-.He was Back-Up Pilot for SKYLAB 3 and 4, and trained as the Pilot of the SKYLAB RESCUE CREW. Linds First and ONLY space Flight was Aboard CHALLENGER STS-51B/Spacelab 3. He waited 19 years from the time of his selection until his fight, establishing a record. NOW RETIRED***I have been a Space Cover / Space Autograph Dealer Since 1971. All Autographs and Covers are Guaranteed Genuine-and may be Returned at anytime if Proven Otherwise The free listing tool. List your items fast and easy and manage your active items.