""Popular Mechanics," July 1932, early drawing of future Hindenburg* "Biggest Birds That Ever Flew.
" "Popular Mechanics", February 1930, the future of dirigibles as aviation experts predicted in 1930, drawings on pages 220 and 221 shows how aviation experts saw the Hindenburg then under construction, including an overhead glass covered dance floor* "Super Zepp To Have All Luxuries Of A Liner.