Swallow scale, commonly known as ivory scale in Leizhou Peninsula, is a very small scale, scientific name Swallow, which is a precise weighing instrument specially used by the ancients to weigh gold and silver, precious drugs and spices. Because of its exquisite materials, the materials produced are mostly precious sandalwood, rosewood and ivory, with fine workmanship and unique skills. The boxes containing these ivory scales are also made of precious and high-quality wood, with different colors and textures, simple and elegant appearance and no carved patterns. These ivory scales can be regarded as a collection with very high value and taste.

If you can be sure that the balance beam is really made of ivory, not other materials such as cow bones, then its market value is 1500-2000 RMB.