Flown Soyuz TMA-6 capsule forward-looking porthole. Porthole and frame measure 14″ in diameter, and was used by the flight engineer during the docking process. The forward-looking porthole was used along with optical periscope Vzor to measure altitude and spacecraft orientation. Porthole is made of multilayered high temperature glass with heat resistant composite and titanium alloy frame, which is engraved and stamped with registration, identification and serial numbers. The glass of the porthole also has the ability to change color depending on the sunlight. The frame, made of titanium, has an install device matching with the porthole of Vzor. The porthole is mounted to a heavy wrought iron stand measuring 28″ in overall height. TMA-6 docked with the ISS on April 17, 2005, and eventually undocked from the space station on October 10, 2005. An extremely interesting, important, and recognizable flown relic. RRAuction COA.
