Two men performing a show to an audience at a public house, using sign language. Wood engraving, 1875. https://www.rawpixel.com/image/13999498/image-person-art-clothingFree Image from public domain licenseShow Ear Listen Hear Deaf Sign https://www.rawpixel.com/image/350370/image-rawpixelcomView licenseShow Ear Listen Hear Deaf Sign https://www.rawpixel.com/image/907456/free-image-rawpixelcomView licenseBack to School Education Hand Sign Communication https://www.rawpixel.com/image/286336/image-rawpixelcomView license