A nice and simple 6-digit system is used in the period from 1969 to1984. The first two numbers represent the year. The next two digits represent the month and the last two digits represent the number of the unit (serial number). For example: 800629. The 29th guitar that was built in June 1980.

What does Yamaha FG mean?

Yes, I believe the FG stands for Folk Guitar.

Is Yamaha a good guitar brand?

Yamaha has got a rating of 17 in the review category, which is comparatively less than the score of other top brands. Despite paying more money to own one of this brand, but one thing is sure that you will never regret your decision of buying a Yamaha Guitar Brands because of it provides excellent sound performance.