Dating a letter


Kaohsiung Factory, Made in Taiwan, 1971-2001: ########.

The second and third numbers are the month; 09=September.

The first two numbers indicate the day of the month.

The last three numbers represent order of production on the day the guitar was made. ” To you folks, we offer the following: Several other serial number configurations used by Yamaha over the years.

The first letter indicates the last digit of the year of production. Tenryu/Wada Factory, Made in Japan, 1985-1986: ######.