Conclusion: The most plausible publicly‑documented area is , where manufacturers often use sequential numbers (e.g., HMN‑438, HMN‑440).
The decommissioning team was matter-of-fact. "We will store the unit components," the lead said. "We will wipe nonessential memory." HMN-439
Kitano’s involvement ensures that a release garners attention far beyond its domestic market, appealing heavily to international collectors and fans of Asian cinema who track specific performer filmographies. Digital Footprint and Online Reception HMN-439