First of all, I must say Date Codes are not an absolute way to determine authentcity of Louis Vuitton items. Many Vintage Louis Vuitton do not have Date Codes at all and nowadays almost all fake bags have date codes. Date code(DC) is also commonly refered to as "serial numbers" and can be used interchangeably. DC were only widely used after the 1990's. The DC was meant for the use of Louis Vuitton employees internally to identify their own handbags. Not for authenticity purposes. Not all handbags with serial numbers are authentic and not all handbags without a serial number are fake.
Louis Vuitton made in the early 80's had three or four digits only and Louis Vuitton made in the late 80's had three or four digits followed by two letters. I've also seem some vintage handbags with one letter followed by 5 digits.
Date codes since the 90's consists of two letters followed by four numbers. The first two letters tell you "the country where it is made" and the numbers tell you the "month and year it was manufactured".
For defination of letters, refer to the following: (Be aware that this list is not complete and only Louis Vuitton has the complete list. The following is generated from personal experience):
France: A1, A2, AA, AO, AC, AN, AR, AS, BA, BJ, CT, DU, ET, FL, FR, MB, MI, NO, ND, RA, RI, SD, SL, SN, SP, SR, TH, VI, VR
USA: FC, FH, FF, LA, OS, SD
Spain: CA, LO, LB, LM, LW
Italy: CE, MA, SA
Germany: LP
Since January 2007, Louis Vuitton has yet adopted another serial number reading system. Instead of first and third digit being the month, it now means the week of the year the bag was made.
Louis Vuitton - Date Code information
Feb 20, 2010
Posted by MyFairLadyz at 10:29 PM