A SUPERB AND VERY RARE YANG CAI RETICULATED DOUBLE-WALLED VASE 

2011 / acrylic on vellum / each drawing measures 16.5 X 11.5 inches

The first drawing was made by tracing Dropped Vase.  Each subsequent drawing was made by tracing the previous drawing. Any errors (the small dot on the right for example) are also traced.