NASA interest: A rare signed copy of the 'The Astronauts by Don Myrus' The Mercury Seven hard back signed by all seven of 'The Mercury Seven' 1961, first edition, each astronaut has signed in pen adjacent to their photograph at the reverse of the book in the final Chapter 'The Astronauts' Condition: The signatures good and clear The binding is worn and distressed the covers are in fair condition, pages in good condition. The book was given to the vendor by his uncle Thomas Chambers, who worked as an engineer for NASA from the late 1950s. Chambers had a long and involved career at NASA working first on Project Mercury, then Gemini and Apollo. Close involvement with the Astronauts in the early days resulted in him obtaining the autographs.