Handmade wooden abacus with a wooden box. 27 digits. Standard abacus. The abacus itself is in good condition, but the wooden box has age-related stains. This is only on the top lid. As I mentioned before, when I was collecting these, those with wooden boxes cost over 10,000 yen. I wonder how much 10,000 yen was worth back then compared to today. Thank you for looking.