Vintage Chinese wooden soroban abacus featuring a 13-column traditional design with a dual-deck calculating grid. This authentic "Diamond" brand tool showcases a 2-bead upper deck and a 5-bead lower deck per column, constructed with a dark mahogany-style glossy stained wood frame and bamboo support rods. The smooth wooden counters slide easily, making it a functional math calculator or a striking piece of decor. Two structural vertical wood support bars across the face add durability and classic aesthetic appeal.

Approximate measurements:
Frame Width: 10.5 in
Frame Depth: 1.25 in
Total Height: 5.5 in

Pre-owned vintage condition; beads slide smoothly along rods with minor cosmetic finish rubbing consistent with age. Please review all photos for exact condition and details.

11225, 2.15