https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13997630Edit ImageSaveSaveEditCropCustom TextMake it Yours.Remix, add effects & personalize with your own textCustomizeOr start from these designsOptics: a simple microscope, concealed within a book binding. Engraving.MoreOptics: a simple microscope, concealed within a book binding. Engraving.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 759 px | 300 dpiLarge JPEG 3330 x 2105 px | 300 dpiFree Download