@misc{indiciae935b8991a73a,
  title = {Experimental engineering. Vol. II. A treatise on the methods and machines used in the mechanical testing of materials of construction — Illustration, Page 20},
  year = {1901},
  url = {https://www.biodiversitylibrary.org/page/17511321},
  note = {Source identifier: page-17511321}
}