Thank you for looking, This recent find comes from Estate of Retired BOEING & NASA Marshall Space Flight Center Aerospace Engineer that worked on the early Saturn/Apollo to Shuttle Missions - NOTE: After retirement previous owner was a Archives/Curator at "THE SPACE and ROCKET CENTER" (SPACE CAMP-Huntsville, AL.) Where he also was able to Obtain a large Collection of Purged Archived items if after notified original donors did not re-claim them.  Listing is for a NASA GEORGE C MARSHALL SPACE FLIGHT CENTER SIGNED ERNST STUHLINGER MEMO that reads "Sincerest Wishes to Jim Jenkins - A Fervent Co Believer in Mankinds Future in Space!" signed Ernst Stuhlinger (Mr. Stuhlinger was one of the Original German Paper Clip Rocket Scientist that headed up Propulsion and the Saturn Rocket Program at MSFC) - (Previous owner Mr. Jenkins worked at the SPACE & ROCKET center with Stuhlinger who volunteered there in the late 1990s to early 2000's).  Stuhlinger handwrote a note to the original owner Mr. Jenkins and SIGNED it on the front page of a copy of an original memo sent to a Sister Mary Jucunda O.P. in Zambia, Africa. The original copy of the memo is also signed but the second signature is a copy. The memo was originally written May 6, 1970 in response to concerns Sister Mary had about the amount of money being spent on the Space Program (specifically a voyage to Mars) and her belief that it could be better spent. 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...