https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13972928Edit ImageSaveSaveEditCropCustom TextThe 1904 World's Fair, St. Louis, Missouri: an exhibition hall showing the Hygeia Filter Company stand: elevated view. Photograph, 1904.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 950 px | 300 dpiLarge JPEG 2976 x 2355 px | 300 dpiFree DownloadThe 1904 World's Fair, St. Louis, Missouri: an exhibition hall showing the Hygeia Filter Company stand: elevated view. Photograph, 1904.More