Blue and White Dragon Pattern Porcelain Thumb Ring with Mahogany Turquoise-Lidded Box. The white porcelain body is fully painted with blue and white dragon chasing pearl patterns, with smooth glaze and rich blue-and-white color tone. It is matched with a solid wood carved round box, the lid relief carved with interlocking flowers and fitted with a natural turquoise knob. Thumb ring dimensions: Height 3cm, Diameter 3.5cm. Dragon patterns symbolize authority and prosperity. It is a classic portable curio for literati of the Qing Dynasty, preserved as a complete set with its original storage wooden box.