【Wooden Abacus from the Meiji Era, 5 Beads】 ■ A wooden abacus from the Meiji era, approximately 33cm in size, convenient for calculations. ■ I received it from my great-grandfather, who used it for his business. ■ Modern abacuses primarily use 4 beads, but it seems 5 beads were common during the Meiji era. ■ Please refer to the attached images for details before purchasing. ■ Thank you for looking.