Zero-pressure helium balloon.
Credit - ") 2001 National Air and Space Museum, Smithsonian Institution (NASM Videodisc No. 7B-33908)"
Vega-2.
Credit - ") 2001 National Air and Space Museum, Smithsonian Institution (NASM Videodisc No. 7B-33918)"
Drawing of the Vega flights.
Credit - NASA
Test unit.