In spite of their considerable promise, airships remained vulnerable, difficult to control, and expensive. And this one (PM, Sept. 1906, p. 904 ) looked like a massive penis.
The article describes it as resembling a “sea monster,” which is discreet. This German gas bag was invented by Ausust von Perseval (1861-1942), who went on to develop fully 22 airships during WWI and several more after.