Does a Louis vuitton serial number have two letters or one?

code guideline that refers to the year the bag was produced. In 1990, the coding system changed to 2 letters followed by 4 numbers. The letters indicate the factory of origin. The 4 numbers are the manufacturing date, but now the date is staggered. The first and third numbers are the year, while the second and fourth numbers are the date. When examining the date, put the numbers into the right order and verify that they represent a plausible date. Code format changed again in January of 2007. 2 letters still represent the factory of origin. The 4 numbers that follow the letters are the week and year the bag was made.