A personal Christmas message from Earth to orbit

Prokopyev and Petelin were already suited for the EVA

The letter is not simply a later commemorative tribute to Expedition 1

Certificate of authenticity

Both the envelope and the enclosed Christmas card were carried into orbit and officially postmarked aboard the station on December 25

Soyuz TM-32 FLOWN ISS cover Dennis Tito first space tourist Gene Cernan A personal Christmas message fromSoyuz TM 32 Extremely Rare ISS Flown Dennis Tito Cover, One of Only Four Produced An exceptional artifact from a defining moment in commercial spaceflight: an International Space Station flown cover carried aboard Soyuz TM 32, hand signed by the mission crew and postmarked in orbit on May 6, 2001. The reverse bears a handwritten certification by Yuri Usachev, commander of the resident ISS Expedition 2 crew, confirming that the cover was flown aboard