https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13958003Edit ImageSaveSaveEditCropCustom TextThree men are working at benches hammering out and filing metal objects such as colanders, sifters, funnels and graters. Coloured etching.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 1016 px | 300 dpiLarge JPEG 3093 x 2620 px | 300 dpiFree DownloadThree men are working at benches hammering out and filing metal objects such as colanders, sifters, funnels and graters. Coloured etching.More