“…Drawing Johan Knutsson. 8 Knowledge about materials, crafts, and manufacturing Some construction devices have through the ages proved to be especially well suited, and repeatedly used, in the making of furniture and wooden interiors in carcass joinery and frame joinery: tenon-and-mortise joints, tongue-and-groove joints, dovetail joints, dovetail housing joint and frame and board joints. 6 All of them are developed, adopted and fitted to the requirements of wood as material.…”