Vintage brass abacus on green vein marble base

Vintage from before 2000 This is a heavy little abacus, weighing almost 2 pounds. The marble and brass compliment each other well. The base is green mixed with black and white which are colors that will go with any decor. The brass disks move very smoothly along each rod. Not only is it a nice piece for desk decor, it can also be used as a paper weight, as well as a calculator.