"The Royal Mail zeppelin"

A zeppelin is an airship from the early 20th century, based on early designs by German Count Ferdinand von Zeppelin. They were the first form of commercial air travel, but after the outbreak of World War One were also used extensively by the military.

The Hindenburg disaster of 1937 hastened the demise of the zeppelin, but they remain synonymous in popular culture with villainy, and have ties in particular to the steampunk genre, which makes great use of Victorian aesthetics.