Banshū Soroban Abacus (12-Column Pastel) by Daiichi — 200-Year Hyōgo Abacus Tradition (¥2,687 / ≈$18 USD) [2026 Buyer’s Guide]
Banshū soroban (播州そろばん) is the **abacus tradition of Ono City**, in southwestern Hyōgo Prefecture — produced continuously since…