File:James Gillray, "Metallic-Tractors" (1801).jpg

Summary
Credit: James Gillray, "Metallic Tractors", a caricature of Elisha Perkins and his Perkins's Patent Metallic Tractors. Wellcome Collection. Attribution 4.0 International (CC BY 4.0), https://wellcomecollection.org/works/gy4cxzfq?wellcomeImagesUrl=/indexplus/image/M0010466.html