Antique Japanese Abacus 90 Wooden Bead 14 Decimal Large Soroban 13"

This is an antique Japanese 90 bead Abacus known as a soroban. It features a solid jointed kiyaki wood frame, metal nails, as well as a steal dowel rod and wood cross beam board with durable dark stain throughout the frame. On the back is written "30th Anniversary stock formula Hayashikoshi Onoya Shoten".

This abacus measures 13" wide by 4" tall by 1" deep (33 x 10 x 2.5 cm). With the exception of a few chipped beads, visible in the images above, it remains in good condition.