About this reference

The primary root source is Coach catalogue material. Records are extracted from that material as facts. Records from the 1981-1999 material are then cross-checked through a separate extraction chain. Because both chains can share the same catalogue root, agreement is a consistency check rather than a second independent source. Records added from the 2000-2010 Coach catalogues reviewed so far rest on the catalogue pages alone.

Where a catalogue record and another recorded source conflict, or the extraction chains disagree, the record is held for review. It is not averaged away or resolved in favour of the more convenient answer. Source counts describe recorded references, not necessarily distinct roots.

Facts are recorded; catalogue wording, scans and product photography are not republished. Decoder rules describe what this site's tool reads. They do not prove that every coverage boundary is universal history.

Each Coach reference page shows when its evidence was last reviewed. A review date records that check; unsupported precision stays out until catalogue evidence can be cited.

The Coach reference index routes each question to the narrowest method. Start with the Coach Creed decoder, the Coach serial number lookup, the catalogue style search or the whole-bag identification method according to the evidence you have.

For Louis Vuitton, the Louis Vuitton date code decoder matches a code to a documented date-code window, names the guides it relies on, and leaves the factory letters undecoded.

For Chanel and Hermès, the Chanel serial number decoder and the Hermès date stamp decoder report what named resale guides publish. Each guide's reading stays under its own name, and where the guides differ, both are shown.

For Gucci, the Gucci serial number decoder splits the number on the leather tag into its two rows and reports what named resale guides call each one. It gives no year.

For Fendi, the Fendi serial number decoder splits the number on the leather tag into its groups and reports what named resale guides call one of them. It gives no year.

It is not authentication. Decoder and catalogue results are consistency checks; they do not establish that a bag is genuine or replace an in-person assessment.

It is not an appraisal. Nothing here estimates what a bag is worth.

It is not affiliated with Coach, Louis Vuitton, Chanel, Hermès, Gucci or Fendi. Their names are trademarks of their owners, used here only to describe the bags being identified.