https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13955891Edit ImageSaveSaveEditCropCustom TextWomen grind glass lenses while two customers try spectacles on. Coloured line engraving, 1799.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 820 px | 300 dpiLarge JPEG 3500 x 2391 px | 300 dpiBest Quality JPEG 5721 x 3909 px | 300 dpiFree DownloadWomen grind glass lenses while two customers try spectacles on. Coloured line engraving, 1799.More