This copper bar is about the size of a Popsicle stick. It was rendered on board the Soviet space station Mir space station inside, as part of research on the benefits of microgravity in developing ultra-pure materials. The bar bears the inscription "cosmos (space) for the world" and a drawing of Soviet Buran space shuttle.
Cosmonaut Vladimir Dzhanibekov donated this bar to the National Air and Space Museum.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.