This black-glazed bowl represents the unique artistic taste of the Northern Song Dynasty: the pursuit of simplicity and natural beauty in ceramics. It combines the simple shape and the beautiful oil-droplet-shaped crystals created when fired in the kiln. The bowl is made of grayish white clay with a flared mouth and a narrow circular bottom. Many similar bowls have been unearthed, but such a big mouth is rarely seen. The oil-spot pattern is a unique technological achievement that demonstrates the advanced knowledge and skills of the potters of the time and influences later generations of ceramic production.