Illustrations

from public-domain sources

Description	English: Illustration from an advertisement for Benz automobiles and airplane engines, 1917
Date	1917
Source	Illustrirte Zeitung (https://archive.org/details/illustrirte-zeitung-3841-1917/page/212/mode/2up?view=theater)
Author	Martin and Walter Lehmann-Steglitz

This is the original advertisement for Benz automobiles and airplane motors:

Description	English: Photographer observes the flight of an early airplane
Date	1915
Source	Advertisement in The Photographic Times (https://archive.org/details/photographictime4781unse/page/n3/mode/2up)
Author	Anonymous

This scalable illustration can be used at any size.