From IPHLA 2012 to the ISS.
First these 2 letters were cancelled in Mainz, Germany during the "IPHLA 2012” International Philatelic Literature Exhibition and were posted to Russia. Then the letters were delivered to the International Space Station by the Russian "Soyuz TMA-07M” spacecraft. Aboard the Station the letters were cancelled with all proper board cancellations, including the official board post mark dated December 21, 2012, the day when the "Soyuz TMA-07M” spacecraft docked with the International Space Station.