Very hard to find original Final Report of the Delta Clipper DC-XA SSRT (Single Stage Rocket Technology). Used, 9 x 11 inches closed, a total of 142 pages. Plenty of printed photos, diagrams, charts, etc.
This is from the southern California estate sale of Gerry C. Coleman (Gerald Claiborne Coleman), a graduate of LSU in aeronautical engineering, he worked for Douglas, McDonnell-Douglas and Boeing in several capacities. He was one of the engineers who developed the engines that took the US to the moon and back. He was especially proud of the work his group did to design, build and fly a Single-Stage-To-Orbit X-plane rocket known as the "Delta Clipper" which took off and landed from it's tail.