ansu, a name covering a wide range of traditional Japanese storage chests. Often associated with portable movable furniture, tansu chests developed into specialized forms for use on merchant ships, carrying swords, lock boxes for securing valuables, as well as storing clothing. In addition tansu chests were sometimes organized into a stair-step configuration to double as access to upper floors of a home. Tansu chests often use asymmetrical drawer and door layouts and bold decorative hardware. Here’s a link where you can see more examples of traditional Tansu chests.
George R. Walker