https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13990521Edit ImageSaveSaveEditCropCustom TextA barnacle or goose-mussle encrusted in a rock. Etching.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 915 px | 300 dpiLarge JPEG 3022 x 2304 px | 300 dpiFree DownloadA barnacle or goose-mussle encrusted in a rock. Etching.More