Antique Japanese Abacus 90 Wooden Bead 14 Decimal Large Soroban 13X4"

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.

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.