a length of fine ivory engraved along its length with three measuring scales. At one end is tied a brass saucer by three threads, spaced from this are three pivot points represented by short lengths of thread with red & green tassels. A small brass weight is suspended by a looped thread over the ivory stick. The scales are contained in a spade shaped bamboo case, hinged at the tip with a brass pin. A woven bamboo ring slides on the handle of the case to lock it closed.

stamped on the brass saucer: CHINA

paper deal on the outside of case: CHINA

a red paper decal inside the case has printed Chinese characters in black