Patient being carried to Boston General hospital on a stretcher. Coloured line engraving by Fenner Sears & Co., 1831, after… https://www.rawpixel.com/image/14016066/image-horse-person-artFree Image from public domain licenseA U.S. Coast Guard Maritime Security Response Team patrols Boston Harbor June 20, 2017. https://www.rawpixel.com/image/8728012/photo-image-public-domain-person-manFree Image from public domain licenseVintage train illustration. Remixed by rawpixel. https://www.rawpixel.com/image/9742265/vintage-train-illustration-remixed-rawpixelView licenseOfficers with the U.S. Customs and Border Protection, Office of Field Operations, conduct non-intrusive inspections at the… https://www.rawpixel.com/image/8741314/photo-image-public-domain-personFree Image from public domain licenseU.S. Coast Guard Maritime Enforcement Specialist 3rd Class Jon Sykes, left, and Maritime Enforcement Specialist 1st Class… https://www.rawpixel.com/image/8742210/photo-image-public-domain-personFree Image from public domain licenseConversion. Safety razor plant. In a New England plant manufacturing safety razors, honed head blade clips for razors.… https://www.rawpixel.com/image/12307072/image-plant-person-technologyFree Image from public domain licenseOfficers with the U.S. Customs and Border Protection, Office of Field Operations, board a flotilla of tall ships off the… https://www.rawpixel.com/image/8726702/photo-image-public-domain-waterFree Image from public domain licenseWillows shading a Stream near a Bridge on Concord Turnpike in Cambridge by Wilson Flagg https://www.rawpixel.com/image/14321107/image-trees-public-domain-united-statesFree Image from public domain licenseLocust-trees on the Banks of Bass River in Beverly by Wilson Flagg https://www.rawpixel.com/image/14320365/locust-trees-the-banks-bass-river-beverly-wilson-flaggFree Image from public domain licenseMr. Chapin, oil merchant - & his spirit wife & babe recognized by William H Mumler and Helen F Stuart https://www.rawpixel.com/image/14310075/image-background-face-personFree Image from public domain licenseChauncy Street from Exeter Place by Josiah Johnson Hawes https://www.rawpixel.com/image/14313584/chauncy-street-from-exeter-place-josiah-johnson-hawesFree Image from public domain license[Untitled photo, possibly related to: New Boston, Ohio. Schoolchildren at the post office to buy defense stamps]. Sourced… https://www.rawpixel.com/image/12285993/photo-image-person-public-domain-womanFree Image from public domain license