Would you spend $4 million on a canvas bag? Would you spend it if the bag had once been to the moon? The top auction house in New York is hoping someone will pay that much for the very bag used by NASA astronauts to bring back the first lunar samples.

FOX's Eben Brown reports:

A plain looking pouch, it's only markings are a thick zipper and the label 'Lunar Sample Return' could fetch as much as four million bucks when Sotheby's puts it up for auction this week.

It's the very bag used by Neil Armstrong, during the Apollo 11 mission, to haul back moon rocks. The bag had been missing for decades. Sotheby's has more space memorabilia for the highest bidder, including Gus Grissom's space suit.

The auction will be held Thursday, which is also the 48th anniversary of the first lunar landing.

Eben Brown, FOX News.

Follow Eben Brown on Twitter: @FOXEbenBrown