518 Flyback Booster

Image credit: Grumman
File source: NASA NTRS

Design 532

Image credit: Grumman
File source: NASA NTRS

Design 518

Image credit: Grumman
File source: NASA NTRS

NAR Art Department

Image credit: North American Rockwell
Image source: Numbers Station

Shuttle Development

Image credit: North American Rockwell
Image source: Numbers Station

Recoverable Atlas Booster

Image credit: Convair
Image source: SDASM Archives

255-CC-70HC-169

Image credit: North American Rockwell
Image source: National Archives