https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13995331Edit ImageSaveSaveEditCropCustom TextBuilding: plans of the four floors of a town house, showing the layout of flooring joists. Engraving by G. C. Jenkinson, 1847, after M. A. Nicholson.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 900 x 1200 px | 300 dpiLarge JPEG 1492 x 1990 px | 300 dpiFree DownloadBuilding: plans of the four floors of a town house, showing the layout of flooring joists. Engraving by G. C. Jenkinson, 1847, after M. A. Nicholson.More