The bowl is deeply potted with tapering design, exterior glazed in monochrome brown, interior glazed in patterned design similar to iron rust, bottom unglazed.|Liao Dynasty period.||Height: 3 in (7.6 cm) Diameter: 5 1/2 in (14.0 cm)|遼 當陽峪窯鐵銹花斗笠盞|此盞呈斗笠形製，撇口，弧壁，圈足。造型規整，凸顯古人含蓄典雅氣質，鐵銹花為我國瓷器裡的名貴品種，其為使用含有氧化鐵的斑花石作顏料，在瓷坯上進行描繪圖案，經高溫燒造而成，整體裝飾猶如風棲雲逝，萬物歸一之感。