General Motors Plant - Petone (1926) by Gordon Burt and Gordon H Burt Ltd. https://www.rawpixel.com/image/13030376/general-motors-plant-petone-1926-gordon-burt-and-gordon-burt-ltdFree Image from public domain licenseRichmond, California. Permanente Metals Corporation, shipbuilding division, yard number two. Pietro Cressano worked at the… https://www.rawpixel.com/image/12338009/image-face-hand-personFree Image from public domain licenseScenes from inside Hall A, including the recirculating electron accelerator, at the Department of Energy's Thomas Jefferson… https://www.rawpixel.com/image/11071794/photo-image-mathematics-public-domain-factoryFree Image from public domain licenseBuilding: floor joists, simple and composite wooden beams. Engraving by J. Davis after R. Tredgold, 1820. https://www.rawpixel.com/image/14006731/image-paper-pattern-woodenFree Image from public domain licenseEngineering: diagrams of loading for simple and composite wooden beams. Engraving by J. Davis after R. Tredgold, 1820. https://www.rawpixel.com/image/13986370/image-paper-cartoon-patternFree Image from public domain licenseRice being fed into polishing machine from chutes. Abbeville, Louisiana by Russell Lee https://www.rawpixel.com/image/12172510/image-background-person-artFree Image from public domain license[Untitled photo, possibly related to: Workman cutting a steel beam with an acetylane torch near mine tipple and engine… https://www.rawpixel.com/image/12243983/photo-image-sky-public-domain-houseFree Image from public domain licenseEngineering: a wide-span wooden truss-beam roof. Engraving by J. Davis after R. Tredgold, 1820. https://www.rawpixel.com/image/14017052/image-paper-pattern-skyFree Image from public domain licenseVistas Mexicanas. Wimer Viaduct, Nacional Railroad by Abel Briquet https://www.rawpixel.com/image/14322641/vistas-mexicanas-wimer-viaduct-nacional-railroad-abel-briquetFree Image from public domain license[Untitled photo, possibly related to: Loading boxes of hulled peas at vinery for transporting to canning factory, near Sun… https://www.rawpixel.com/image/12148904/image-person-art-vintageFree Image from public domain licenseWorkman cutting a steel beam with an acetylane torch near mine tipple and engine house. Scotts Run, West Virginia. Sourced… https://www.rawpixel.com/image/12320503/image-person-public-domain-houseFree Image from public domain licenseLight white background illuminated chandelier. AI generated Image by rawpixel. https://www.rawpixel.com/image/12353666/image-white-background-vintageView licenseMexico. Metlac Viaduct, Mexican Railroad. by Abel Briquet https://www.rawpixel.com/image/14323192/mexico-metlac-viaduct-mexican-railroad-abel-briquetFree Image from public domain licenseInterior structure in a train station https://www.rawpixel.com/image/534695/free-photo-image-interior-thai-modern-architecture-construction-industry-ironView licenseShot from under a bridge https://www.rawpixel.com/image/534698/free-photo-image-gates-architecture-beamsView license