This is the Smithsonian Volume 2: "Modern Flight" (6 Model Kit) based upon 6 historical modern aircraft displayed prominently at the Smithsonian National Air and Space Museum in Washington, DC. These models are pre-cut, easy to assemble and include the following airplanes:
The Messerschmitt ME262 German Jet Fighter
The Bell X-1, flown by Chuck Yeager and the first aircraft to break the speed of sound
The Boeing 367-80, prototype for the first commercial jet airliner, the Boeing 707
The North American X-15, flown by Scott Cross and the fastest aircraft ever built
The Hawker Siddeley XV-6A Kestrel
The Rutan Voyager, first aircraft to circumnavigate the earth non-stop.