This is an authentic Chinese abacus that was used in the early 20th century. The Abacus being an ingenious calculator has been used in China for over a thousand years. Its accuracy and speed remains extraordinarily impressive till this day of age. This particular piece has all wood frame and beads, completely handmade, and the bamboo bars that hold the beads together. The beads are substantial, hand-cut pieces that are smooth and perfect for frequent use and fast movements. This is a fully functional piece that was actually used, not a decorative export item. A recent scientific relic that represents a piece of Chinese history and the intelligence of its people. In great condition with no beads missing or structural damage.