Thank you for finding this exquisite item among the many products available. This is a 23-digit abacus, a true embodiment of craftsmanship by Chozou Naito (art name: Jyun) of the Unshu abacus world, a "legendary master craftsman." He is a legend who holds the highest honor of being the craftsman who made a presentation to Emperor Showa. 【Notable Value of This Work】 ● Rare Full Name Gold Lettering: "Chozou Naito" is deeply engraved on the side. Such clear lettering is rare and is proof of the master craftsman's confidence in his work. ● Supreme Materials and the Pride of "Made by": Uses "Kaba balls" with a deep color and luster, and rare "Susu-take (smoked bamboo) cores." The craftsman's soul is imbued with the desire for it to be used as a lifelong item. ● "Living Tool" Loved by Professionals: Used by the seller's parents, who were accounting professionals. The well-maintained and frequently used beads have an "exquisite familiarity" that new ones do not possess. 【Miraculous Preservation Condition】 ● Supreme Accuracy: There is no distortion or looseness in the frame, and the stability is exceptional. ● Beautiful Condition: There are no noticeable scratches or sticker marks, and the rare "Special Selection Unshu" label is still present. It is in extremely good condition for its age. 【About the Case Condition and Authenticity】 The lock is stiff, so it is recommended to use pliers or similar tools to slide the unlocking tab. Please consider the case as "protective material." There is no certificate of authenticity, but this gold lettering and appearance are proof of its authenticity. 【About Transactions】 ● We keep a video of the packaging to prevent item substitution. Due to the high value of the item, returns due to customer circumstances are not accepted. ● We may cancel transactions with users who have a high number of "negative" ratings. As this is a precious item, we hope for a transaction that is mutually reassuring. ☆ Immediate purchase OK! Usually ships within 24 hours ☆ Twin companion also on sale! Photos 13 and 14 #minakopiya_companion_abacus Thank you for viewing!✨