Common hallway sink in old schoolhouse, Hamilton, Ohio. Sourced from the Library of Congress. https://www.rawpixel.com/image/12311044/image-public-domain-wall-waterFree Image from public domain licenseCorpus Christi, Texas. Rest room on the beach. Sourced from the Library of Congress. https://www.rawpixel.com/image/12336736/image-beach-public-domain-wallFree Image from public domain licenseSign at laundry, Brownwood, Texas. Most towns in west Texas have hard gypsum water by Russell Lee https://www.rawpixel.com/image/12170752/image-plant-art-vintageFree Image from public domain licenseGreyscale of restrooms stall abstract background https://www.rawpixel.com/image/91808/free-photo-image-toilet-stall-restroom-abstractView licenseMilk running over cooler after pasteurizing. Duluth Milk Company, Duluth, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284825/photo-image-pattern-public-domain-wallFree Image from public domain licenseDecorations on wall of living room. Mexican home near Santa Maria, Texas by Russell Lee https://www.rawpixel.com/image/12175526/image-person-art-vintageFree Image from public domain licenseGreyscale of restrooms stall abstract background https://www.rawpixel.com/image/91811/free-photo-image-restroom-toilet-stall-abstractView licenseGreyscale of restrooms stall abstract background https://www.rawpixel.com/image/91807/free-photo-image-toilet-stall-restroom-abstractView licenseToilet in the basement of an apartment house rented to es. Chicago, Illinois by Russell Lee https://www.rawpixel.com/image/12176257/image-art-vintage-woodFree Image from public domain licenseCharlotte Amalie, Saint Thomas Island, Virgin Islands. One of the toilets of the women's ward in the Charlotte Amalie… https://www.rawpixel.com/image/12281734/photo-image-art-public-domain-wallFree Image from public domain licenseConductor (right) and brakeman, in their places in the cupola of the caboose on the Atchison, Topeka, and Santa Fe Railroad… https://www.rawpixel.com/image/12290311/photo-image-person-public-domain-wallFree Image from public domain licenseGreyscale of restrooms stall abstract background https://www.rawpixel.com/image/91797/free-photo-image-abstract-aisle-artView licenseStairway in the Greenbelt school. Maryland. Sourced from the Library of Congress. https://www.rawpixel.com/image/12274653/photo-image-pattern-public-domain-wallFree Image from public domain license