A rare lunar planning chart signed by six moonwalkers is to cross the block at RR Auction.
Bidding is to start at $2,500, with the sale closing on June 25.
Only six of these maps were ever signed, making them hugely desirable pieces of space memorabilia.
Each of the astronauts, including Buzz Aldrin and Gene Cernan, has marked the map at their respective landing site.
 The lunar planning chart features the signatures of six astronauts |
One of the maps sold at Bonhams for $62,500 in 2012.
An Apollo 12 surface-worn backpack strap carries an identical starting bid of $2,500.
Astronaut Charles Conrad wore the strap during his Moonwalk on the Sea of Storms in 1969.
It's accompanied by a letter of provenance from Conrad that reads: "This strap helped support the 'PLSS' Backpack on my spacesuit during my historic four-hour moonwalks, becoming directly exposed to the lunar environment as a result!
"We were allowed to keep, and return, a few personal mementos from the Moon as keepsakes, and I included these disposable straps among mine.
"After this strap's release from quarantine, and return to me by NASA, it remained a treasured part of my personal space collection until 1992."
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