Skip to main content
Go to accessibility notice


    Deke Slayton Typed Letter Signed to Neil Armstrong Regarding the Thrill of Spaceflight Directly From The Armstrong Family Collection™, Certified and Encapsulated by Collectibles Authentication Guaranty. A one-page letter on NASA stationery dated September 18, 1975. This was just a few weeks after Slayton returned to earth after the historic Apollo-Soyuz Test Project Mission which essentially ended the "space race." Even though chosen as one of the original Mercury Seven astronauts, Deke had never gone into space because of medical issues. It reads as follows:

    "Dear Neil:

    "A belated thanks for your kind note prior to the launch of Apollo/Soyuz. I finally had a chance to discover how much fun you guys have been having all these years, and you are right: it's worth the wait.

    "We are about to leap off on a month of touring the USSR and US, so will miss the SETP [Society of Experimental Test Pilots]. I had hoped to see you there. In any case, we will join up somewhere around the circuit.

    "Best wishes, and thanks again.

    [signed] Deke
    NASA Astronaut"

    Both Slayton and Armstrong were fellows of the SETP. A very desirable letter revealing that Slayton's space mission fulfilled his expectations. Flattened original folds, otherwise excellent, sealed in a numbered archival sleeve. This lot will include a Statement of Provenance signed by Neil Armstrong's sons, Rick and Mark.

    Learn more about Collectibles Authentication Guaranty (CAG).

    Auction Info

    Auction Dates
    November, 2018
    1st-3rd Thursday-Saturday
    Bids + Registered Phone Bidders: 7
    Lot Tracking Activity: N/A
    Page Views: 1,041

    Buyer's Premium per Lot:
    25% on the first $250,000 (minimum $19), plus 20% of any amount between $250,000 and $2,500,000, plus 12% of any amount over $2,500,000 per lot.

    Sold on Nov 2, 2018 for: Sign-in or Join (free & quick)
    Track Item

    Heritage membership

    Join Now - It's Free

    1. Past Auction Values (prices, photos, full descriptions, etc.)
    2. Bid online
    3. Free Collector newsletter
    4. Want List with instant e-mail notifications
    5. Reduced auction commissions when you resell your
    Consign now
    • Cash Advances
    • More Bidders
    • Trusted Experts
    • Over 200,000 Satisfied Consignors Since 1976
    Consign to the 2021 December 5 Holiday Luxury Accessories Signature Auction .

    Learn about consigning with us

    The pre and post sales experience was wonderful and flawless. Heritage has the best in-house operation I have ever seen and their people are not only professional but fun to work with, especially Steve C.

    As for Heritage's online system… Yes the interface is more complex than what we are used to with SAN but what is behind that interface is amazing for sellers and buyers alike. It is real time and for a real serious auction buyer there is nothing better in the auction industry, bar none.
    Ron Cipolla,
    View More Testimonials receives more traffic than any other auction house website. (Source:

    Video tutorial

    Getting the most out of search