Traditional brown abacus. One is a Kame Dake Ideal Type No. 276. Patent number 886869. It appears clean, especially visually, and seems to be in good working order. The other one wobbles when placed on a desk. Please consider this, as it has been stored at home for a long time. *We do not switch to exclusive listings. Please understand that the transaction will be with the person who purchases first due to the system's limitations. Thank you for viewing.