Louis Vuitton has stamped a date code into most of its bags since the 1980s, and reading one correctly tells you roughly when and where a bag was made — useful context, though not a full authentication on its own. Here's how the system works and where it breaks down.
Where to Find It
On most styles, the date code is stamped into a leather tab inside the bag — often near a pocket seam, under a flap, or on the interior lining, depending on the style and era. It's typically small, debossed rather than printed, and can be easy to miss if you're not looking for it.
How the Format Works
A standard Louis Vuitton date code from this era reads as two letters followed by four numbers — for example, something like "SD2148." The two letters indicate the factory where the bag was made (different letter pairs correspond to workshops in France, Spain, the US and elsewhere). Of the four digits, the first and third together indicate the week of production, and the second and fourth together indicate the year.
What a Date Code Doesn't Tell You
A correctly formatted date code is not proof of authenticity by itself — counterfeiters copy real date code formats onto fake bags constantly, and a code that "looks right" tells you nothing about whether the canvas pattern, hardware and stitching underneath it are genuine. Treat the date code as one data point, not the verdict.
What We Check Alongside It
- Canvas pattern alignment: on monogram and Damier pieces, the pattern should align symmetrically at every seam — misaligned or stretched patterns are a common tell.
- Hardware: zippers, locks and studs should carry consistent, crisp Louis Vuitton branding with no play or looseness.
- Stitching: LV uses a distinctive yellow-toned waxed thread on most canvas pieces, with tight, even stitch spacing.
- Interior lining: material and stamp quality should match the era and style expected for that bag.
Our Process
Every piece in our Louis Vuitton collection is checked against its date code alongside canvas, hardware and stitching before it's authenticated, under our authentication guarantee.
Frequently Asked Questions
My Louis Vuitton bag has no date code — is it fake?
Not automatically. Very early production, some special editions, and the newest pieces using digital authentication instead of stamped codes may not carry a traditional date code. But for a bag from an era that should have one, a missing code is a legitimate red flag.
Does a correct date code format prove a bag is authentic?
No. Counterfeiters replicate valid-looking date code formats constantly. A correct code is one data point that should line up with the canvas pattern, hardware and stitching — not a standalone proof.
Do the date code letters tell me anything about value?
They tell you which factory made the bag, which some collectors have preferences around, but the factory location isn't a reliable indicator of quality or resale value on its own.
