The Baron's Den is proud to offer this historical NASA item from the personal collection of Walter Turner, a Senior Engineer for NASA. Walter Turner was a Space Experiments Engineer at NASA from 1995 to 2005. From 2005 until his death in 2021 he was a Senior Engineer for Integration and the Flight Test Management Office (FTMO). This Listing is for an Item(s) from Walter Turner's personal collection. It's Authenticity is guaranteed. Please see the last 3 pictures of this listing for examples of provenance. (these items are not included in the sale, rather they are pictured for authentication purposes) You can request a letter of authenticity from our company, The Baron's Den, certifying the acquisition and disposition of this item(s). If desired, please message us with the LOA request at the same time you make payment. For your Consideration: NASA 50 Years Of Exploration And Discovery Colored Magazine w/ Doc Lot Of 2 The Magazine?s have some wear on the surfaces from storage over the years. Mainly just scratches there are no rips or tears. The fold outs are still in the book and in good shape (see photos). Also included is the release letter. Please see pictures for condition.