Late Qing Dynasty (1644 - 1912). The stone's russet skin has been transformed into a butterfly resting at the back of the flower-shaped pen holder attaching to the washer, which adds a little taste of nature to a scholar's desk. Great vintage condition with natural inclusions and minor fissures. Dimension: 2 3/4" x 2 5/8" x 2 3/4" or 7 cm x 6.5 cm x 7 cm with stand; 2 5/8" x 2 3/8" x 1 1/2"or 6.5 cm x 6 cm x 3.8 cm without.