Three ironworkers on girder with steam and rooftops in background, New York City (1904) by Thornton Oakley https://www.rawpixel.com/image/11767791/image-background-steam-personFree Image from public domain licenseA typical glass works boy, night shift. Said he was 16 years old, August 1908. Photographer: Hine, Lewis. Original public… https://www.rawpixel.com/image/8765783/photo-image-face-vintage-personFree Image from public domain licenseHokusai's Man on a Raft. Original public domain image from the MET museum. https://www.rawpixel.com/image/7639427/original-public-domain-image-from-the-met-museumFree Image from public domain licenseSenior Indian man looking at the camera. https://www.rawpixel.com/image/81265/premium-photo-image-portrait-poverty-carrying-headView licenseLeone Otasso and His Wife Presenting Their Sick Son to Saints Aimo and Vermondo; A Crowd of Lay Worshippers Giving Thanks by… https://www.rawpixel.com/image/14246103/image-paper-face-personFree Image from public domain licenseBlue medical doctor background https://www.rawpixel.com/image/11600474/blue-medical-doctor-backgroundView license[Untitled photo, possibly related to: Roughnecks guiding bailer into hole during bailing out operations, oil well, near… https://www.rawpixel.com/image/12170931/image-person-art-vintageFree Image from public domain licenseHand holding an hourglass clipart https://www.rawpixel.com/image/536499/premium-psd-antique-arm-basicView license