This is by far one of the crazier contraptions devised by mortal man. Passengers are assured they may travel “ohne sturzgefahr!” (without risk of falling/crashing).
“Neven’s Schraubenflieger” – needless to say – never got off the ground, literally, and figuratively. His brochure is drumming up investors; interested gentlemen need inquire only if they bring in more than 25,000 Reichmarks per annum. This is an original brochure – I can’t find anything else regarding this venture.