I’ve been informed by UKAuctioneers.com that they are holding an auction today of a collection of autographs that includes
a large quantity of signed photographs by Russian/Soviet cosmonauts and US astronauts including Buzz Aldrin and Alan Bean.
For a listing of the items and to participate in the auction see: The Mark Whitworth Collection – An Important Sale of Autographs and Related Ephemera – UKAuctioneers.com.