A: That is the inspector’s stamp (e.g., "T" for Tanaka, "S" for Suzuki). It does not affect the date but indicates this specific flute passed the final quality control check.
Last updated: 2025. If you have a serial number not listed in the chart, contact the manufacturer directly for a factory letter of authenticity. Miyazawa Serial Numbers
Remember: A Miyazawa is a lifetime instrument. By decoding its serial number, you unlock its history—the year it was forged in Nagano, the era of its mechanism, and the value it holds today. Keep that number safe; it is the single most important piece of data for your insurance, your repair log, and your legacy as a flutist. A: That is the inspector’s stamp (e