flybackbooster

This appears to be the construction of the proposed Convair / General Dynamics Space Shuttle fly-back booster ("B9U") cockpit section mock-up below: Here's the interior of the mock-up, with astronauts Jim Lovell and Thomas Stafford at the controls, and Buzz Aldrin standing nearby (back to camera, right side of frame):

Hank Hartsfield (with his back to the camera) and Buzz Aldrin in the mock-up of the cockpit of the proposed B9U fly-back booster space shuttle concept. See: en.wikipedia.org/wiki/Henry_Hartsfield en.wikipedia.org/wiki/Buzz_Aldrin

Interesting image of the proposed B9U fly-back booster along with the autographed names of astronauts Don Peterson, Gordon Fullerton, Jim Lovell, Jack Swigert, Tom Stafford, Buzz Aldrin, Karol Bobko, and Hank Hartsfield. Most of the names correspond with astronauts identified in photographs in this photostream examining the mock-up Convair/General Dynamics B9U cockpit. Presumably, these autographs were made at that time. Here are Aldrin, Stafford, and Lovell in the B9U cockpit mock-up: Gordon Fullerton in the B9U mock-up: Aldrin, Lovell, and Swigert looking at potential B9U instrument panel configurations: Aldrin and Hartsfield in the B9U mock-up: