SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Mortise and tenon joint, 19th-century artwork. This is a particular type of mortise and tenon joint, known as a dovetail joint. The tenon (protruding part of the joint) is wedge-shaped, ensuring a tight interlocking fit with the mortise (hole part of the joint). The stages of construction are shown from left to right. Artwork from the 20th volume (second period of 1897) of the French popular science weekly 'La Science Illustree'.
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