How do you find the manufacture date of a Hohner accordion?

To find the manufacture date of a Hohner Accordion, you can check the serial number, typically located on the back or inside the instrument. Hohner has a specific system for serial numbers, which can often be cross-referenced with online databases or Hohner's own resources to determine the year of manufacture. Additionally, examining the model number and any accompanying labels or markings may provide further clues about its age. If in doubt, contacting Hohner directly or consulting with a vintage accordion expert can also help confirm the date.