A booklet of working drawings and brief instructions for building two counterbalance floor looms, a lighter Danish loom and a larger Swedish loom, both with swinging beaters. It includes dimensioned drawings of loom parts and of accessories: warping reel, spool rack, shuttles, floor swift, warp spreader (raddle), temple and fly shuttle beater. The 1973 printing adds pages on a contramarche (countermarch) tie-up with two sets of lams and on converting the loom to a jack type. The booklet is almost entirely drawings with short explanatory text.