https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13963607Edit ImageSaveSaveEditCropCustom TextBrowning's spectroscopes : spectrum apparatus for the microscope ... / John Browning.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1119 x 1200 px | 300 dpiLarge JPEG 3264 x 3500 px | 300 dpiBest Quality JPEG 3686 x 3953 px | 300 dpiFree DownloadBrowning's spectroscopes : spectrum apparatus for the microscope ... / John Browning.More