Louis Vuitton Date Codes: Formats, Meaning, and Limits

The numeric portion records a production period according to the format used at the time. Later codes also include a facility reference commonly associated with one or more manufacturing countries. Multiple genuine items can share the same code because the code is not an individual identity number.

Use the date as a cross-check. Ask whether the model, material, interior, hardware, and country stamp are consistent with that period. If the chronology works, the item still needs a full review; if it does not work, recheck the code and product history before drawing a conclusion.

Before the early 1980s, many items had no date code. Early-1980s examples commonly use three or four digits: the first two represent the year and the remaining digit or digits represent the month. Mid-to-late-1980s examples commonly add two facility characters after the numeric date.

From 1990 through 2006, the first and third digits of the four-digit portion indicate the month and the second and fourth indicate the year. From 2007 into early 2021, the first and third indicate the production week while the second and fourth still indicate the year.

Placement changes by product and era. A code may be stamped on a small leather tab, directly on lining material, inside a pocket, near a seam, or within a bill compartment on small leather goods. Wear, dark interiors, and repairs can make a genuine code difficult to see.

Use a flashlight and photograph the area without pulling hard on a seam or cutting the lining. If the code is faint, capture several angles with side lighting. Do not trace over the stamp or edit the image in a way that changes the character shapes.

Published factory lists are secondary references, not a public Louis Vuitton database. Some codes are associated with more than one country, facilities and records change over time, and online tables may be incomplete or copied from older sources.

Treat a country result as a likely association. Compare it with the item's visible country stamp and production period, and investigate contradictions. A matching pair of codes still does not establish authenticity.

Established resale references report that Louis Vuitton phased out standard visible date codes around 2021 and moved to embedded chips used for internal product information. Consumers should not expect a public chip-lookup database or assume that a phone's ordinary NFC scan will authenticate a bag.

For a newer item, no visible code may be normal. Review the exact model and purchase period, and do not damage the item searching for a component that is not intended to be publicly read.

A decoder should identify the likely era, reject impossible months or weeks, and explain uncertainty. It should not output “authentic” or “fake.” If the format is plausible, continue with the rest of the item. If it is invalid, recheck ambiguous characters, placement, and the claimed era before treating the result as evidence.