https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/561156Edit ImageSaveSaveEditCropCustom TextPetrological microscope with rotating stage published by C. Griffin & Co. (1893). Original from the British Library. Digitally enhanced by rawpixel.MorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 922 x 1200 px | 300 dpiLarge JPEG 1430 x 1861 px | 300 dpiTIFF 1430 x 1861 px | 300 dpi | 15.27 MBFree DownloadPetrological microscope with rotating stage published by C. Griffin & Co. (1893). Original from the British Library. Digitally enhanced by rawpixel.More