This is a pristine 1962 NASA glossy photograph of the 2nd group (The New Nine) of astronauts right after their selection in 1962 and it's signed by Neil Armstrong on the front and Tom Stafford on the back.
I bought the collection of Grant Lathe from his family at the 2006 San Antonio UACC show. Grant was a NASA graphic artist and a friend to all of the Mercury, Gemini & Apollo astronauts. There were hundreds of vintage signed photos in Grant's collection, as well as dozens of examples of early NASA concept drawings, many hundreds of NASA photos and publications.
The beautiful Santa Claus poster shown here was done by Grant before John Glenn's Friendship 7 mission.