This water dropper displays well, but no longer will hold water due to a large crack in the base. The crack narrows and extends up 2 sides of the dropper. It would make a good "study piece" for the advanced collector. I have seen a very similar water dropper (I am supposing in good condition) advertised for $1600.
This water dropper was used to wet the inkstone, from which a calligrapher's brush gets the ink for writing. A single character is painted on all four sides
This water dropper is not a perfect square. The sides do not form straight lines. It is about 3-1/8" (8 cm) by 3-1/8" (8 cm), and 2" (5.1 cm) high.