This pattern is based on a tin ceiling design from the Wunderlich Ceiling Company's 1912 catalog (the last photo is the design as shown in the catalog.)  Wunderlich was an Australian company that produced a fabulous array of tin ceiling designs, many of which are adaptable to rug design.  The examples of floorcloths shown here always use the central element of the wonderfully misshapen squares and art nouveau floral design, and then all or some portion of the other elements, depending on the size and shape of the floorcloth.