Museum grades quality Abacus made with Millennium dark buried Gold Phoebe Lobular ZhenNan of Sichuan frame Camphor Burl beads

The wood Gold phoebe is lobule phoebe of shichuan, and buried in the ground long long ago. is best wood in china,it's he oldest kind of computer is the abacus,Chinese abacus operators can use the gadgets to add, subtract, multiply and divide numbers with great speed, handling figures up to the tens of millions.It's one of the most valuable heritages in the china.
link:http://www.aliexpress.com/store/product/Free-Shipping-Millennium-Gold-Phoebe-sichuan-NanMu-Abacus-Best-Gift-and-collections/436263_2003045297.html