VTG Original 1976 Rockwell NASA Space Shuttle Part Schematics Blueprint Document For Sale

Original vintage genuine 1976 Rockwell Space Division NASA space shuttle umbilical carrier plate assembly schematics/blueprints, document unfolds to approximately 21 connected pages, dated Sep. 27 1976, details the different parts and the assembly sequence of one small but crucial system/part of the shuttle's workings, from the estate of a longtime NASA engineer. Shows age, yellowing, foxing, wear and tear, handling wear, storage wear, see photos for details, message me with any questions.