The four jade articles taken as the subjects of this set of stamps were recommended by the National Palace Museum, Taipei. They are described as follows:2.00 Yellow Jade Brush Holder Embossed with Clouds and Dragons Sung Dynasty (960-1279 A.D.) 5.00 Hsi, White Jade Brush Washer Ming Dynasty (1368-1644 A.D.)8.00 Hsi, Dark Green Jade Brush Washer Ching Dynasty (1644-1911 A.D.)10.00 Hsi, Bluish Jade Washer Ching Dynasty (1644-1911 A.D.)