This recent find comes from Estate of Retired NASA Marshall Space Flight Center Aerospace Engineer and Project Manager who worked on the early Saturn/Apollo to Shuttle Missions and was greatly involved in the design and structural integrity of the rockets used to take mankind to the moon and beyond. This listing is a Binder full or Original letters, documents, handwritten notes and calculations relating to the investigation of skin buckling on APOLLO/SATURN with specifics to the Skylab Workshop Window. Also included is information and reports/presentations given at the NASTRAN Colloquium where he was an invited speaker. All items are in Very Good condition for use and age with some expected use/age and storage wear. Items were found stored in blue binder shown in pictures and will be shipped in/with binder. Please see condition description and all pictures. Note: International orders are taking a little longer to get through customs in some Countries because of pandemic and will be shipped Priority for tracking purposes...   Please see all Pictures and Condition description and to see More Vintage/Antique Collectibles from this Estate other Estates and several Picks just Click on my Store link and Thank you for Looking...