Fahrrader 1 (1894) from the German series, Meyers Konversations Lexikon, a black and white lithograph of different types of… https://www.rawpixel.com/image/428230/vintage-bicyclesFree Image from public domain licenseThe Chromatic scale of colors (1890) by Marcius Willson and N.A. Calkins. Original public domain image from the Library of… https://www.rawpixel.com/image/8627644/image-art-vintage-public-domainFree Image from public domain licensePositions of the Hands (1910) from the work of Joseph Gibbons Richardson (1836-1886). 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