caption: The image shows a drawing of an airship with a large propeller and a long tail, with the words "Echelle au 1900" written at the bottom. The airship is depicted in black and white, with its wings spread wide and its nose pointed forward. The propeller is curved and the tail is long and thin, with a few spokes radiating out from the center. The text is written in a bold font and is surrounded by a thin black border.