Dating prs guitar serial number
From 1986-1990 the serial numbers have 1 letter followed by 4 digits.
The letter represents the month and follows the same system for months as the most common system.(see year and month coding system) The first number stands for the year.
In the 1966-1985 period, successive serial numbers from 001 to 1042 were used.
To find the production year, you have to make a rough estimate The closer to 001 it is closer to 1966 and the closer to 1042, the closer to 1985.
An eight-number system is applied here from 1971-2001 The first digit represents the year. The fourth and fifth numbers represent the day of the month.
The last three digits are the number of the unit (serial number) Because there is only one digit for the year, there are duplicates with this system because it repeats itself every decade.
At the end of 2001, Kaohsiung changed the 8-digit system into a 3-letter 6-number system. In the period of 1990-1996 an eight-digit serial number was used in this factory. From 1997-1999 the same system is applied here as for 1990-1996, except that there are now 9 digits.
A nice and simple 6-digit system is used in the period from 1969 to1984. 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.
In the period of 1997-2003 the same method was applied as for 1991 to 1996 with 2 differences.
There is no more internal factory code at the end, and the unit numbers start at 001 instead of at 701.