Le matériau semble solide et le design est simple mais fonctionnel.
Wooden Abacus, Five Beads, Showa Retro, Antique, Interior
Product Details
I was organizing my warehouse and found this.
As you can see, abacuses with five beads per rod transitioned to four beads per rod from the early to mid-Showa period (1930s). Therefore, this abacus bearing the Hayano Shoji brand is likely quite old.
Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.
Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.
Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.
Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.












