"In those days some customers would insist when placing their orders: 'It must be blue-willow in any pattern!'" says Copeland. He points out that many potteries were making willow pattern, and it is very hard to determine which was the original pattern or factory, because the various potteries often helped each other out with the copper plates used in transfer printing.
「那時候有些訂貨的客戶，常常強調：只要是青花柳葉，隨便什麼圖樣都成」，寇布瀾先生指出，由於許多作坊都生產柳葉盤，因此很難指認究竟誰才算是原廠原作，而且作坊之間的轉印銅版，也常互通有無。