In 1950, Popular Science issued a cutaway drawing of the most exciting object to grace the skies to that point: Convair’s B-36 Bomber. At that time, it was the world’s biggest bomber.
Its 13 man crew could ride at altitudes as high as 50,000 feet, the magazine noted.
Here is a closeup of the cockpit area:
My favorite part of the B-36 is its pressurized 87 foot-long tunnel that allowed crew members to shuttled from one end of the craft to the other. They laid on a four-wheeled cart and pulled themselves along by cable.