: The most common location is engraved in very small numbers on the side of the ribs under the trill keys , or near the C-key post Body or Footjoint

Last updated: 2025. If you have a serial number not listed in the chart, contact the manufacturer directly for a factory letter of authenticity.

In the early 1980s, Miyazawa Flutes began assigning serial numbers to each instrument produced. This practice allowed the company to track and document the production of their flutes, ensuring quality control and providing a unique identifier for each instrument. The serial number, typically a combination of letters and numbers, is engraved on the flute's barrel or body.