https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13986687Edit ImageSaveSaveEditCropCustom TextBritish inventors, politicians and military men, gathered in a room at Buckingham Palace. Engraving by C.G. Lewis, 1863, after T.J. Barker.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 748 px | 300 dpiLarge JPEG 3424 x 2133 px | 300 dpiFree DownloadBritish inventors, politicians and military men, gathered in a room at Buckingham Palace. Engraving by C.G. Lewis, 1863, after T.J. Barker.More