View of London with St. Paul’s in the Distance: A Family Pausing on a Road by Julius Caesar Ibbetson https://www.rawpixel.com/image/9614103/image-london-watercolor-public-domain-french-revolutionFree Image from public domain licenseU.S. Navy Boatswain’s Mate 3rd Class Jeffrey Boekeloo prepares the phone and distance line on the flight deck of the Wasp… https://www.rawpixel.com/image/8741580/photo-image-phone-public-domain-personFree Image from public domain licenseU.S. Navy Quartermaster Seaman Ethan Bracket uses a stadimeter on the starboard bridge wing to gauge the distance between… https://www.rawpixel.com/image/8741419/photo-image-public-domain-ocean-personFree Image from public domain license