The rich and lustrous, ever-changing mirror-like persimmon glaze on this charming little jar would have made it conducive to long periods of contemplation by a scholar, on whose desk such an object would be set to hold fresh water.
A virtually identical water pot in the collection of the Buffalo Museum of Science is illustrated by W. Hochstadter, 'Ceramics of the Five Dynasties and Sung Periods', Hobbies: The Magazine of the Buffalo Museum of Science, vol. 26, no. 5 (June 1946): pp. 101-46, no. 73. Two small russet-glazed Cizhou-type jars with more rounded bodies in the Scheinman Collection are illustrated by R. Mowry, Hare's Fur, Tortoiseshell and Partridge Feathers, Harvard University Art Museums, Cambridge, 1996, no. 27a and b.