This is a large wooden Estonian abacus, an ancient calculator used at schools and in shops. It measures 17.5 X 10.2 inches (44.5 X 26 cm) and weighs almost a kilo.
I ship all around the world. It takes about two weeks to the parcel to arrive to US, Canada, about three weeks to Australia, New Zealand, Singapore, China and Japan and about a week to ten days to Europe.
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Wooden vintage abacus large back to school antique calculator computer