https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14002191![Architecture: sections and plans of a furnace, masonry details. Engraving by Bénard [after Lucotte].](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djcjNzcHN1amItaW1hZ2UuanBn.jpg)
Architecture: sections and plans of a furnace, masonry details. Engraving by Bénard [after Lucotte].
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use