https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14012225Edit ImageSaveSaveEditCropCustom TextMentally ill people at the Charité hospital sitting and looking at a piece of apparatus (camera). Photogravure by C. Block after G. Moreau de Tours.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 1007 px | 300 dpiLarge JPEG 2893 x 2428 px | 300 dpiFree DownloadMentally ill people at the Charité hospital sitting and looking at a piece of apparatus (camera). Photogravure by C. Block after G. Moreau de Tours.More