Open any model file on this site and the birthday is the loud part: a runway date, a campaign, a season, sometimes a dispute between two of them, but always an announcement. Now look at the other end of the same files. The Trapeze's exit is recorded as late 2017. The Trio's is a window spanning 2021 to 2022. The Baguette's great dormancy is an argument between the market's record and the house's own memory. Houses announce births with shows and let deaths pass in silence, which is why this register's exit column is full of windows where the entry column has dates. Case 08 is about that asymmetry, and about the useful fact hiding inside it: a discontinuation is a date boundary that works backward, and the silence around it is itself a dating instrument.
Why exits are windows
No maison holds a runway show to kill a bag. A model leaves the order books, lingers in boutiques while stock runs down, survives another season in outlet channels, and only afterward does the market notice the shelf is bare. So the record of an ending is assembled in hindsight, and it comes out as a corridor: the Trapeze, one of the most photographed bags of its decade, exits at late 2017; the Trio's file closes somewhere in 2021 to 2022; the Classic Box is booked out in 2023. The register's rule follows directly: treat every exit as a window unless the house said otherwise, and treat a seller's suspiciously precise final year with the same question this site asks of every precise claim. Precise according to which record? Once in a while the answer exists, which is why the Belt bag's March 2025 exit stands out in the file like a dated gravestone in a field of approximate ones.
What a closed run does to a bag
The moment production ends, two clocks start. The first is the collector's: supply is fixed, and the model converts from a product into a census. The Spy is the register's cleanest specimen, a short run that ended with its era, so that every example that exists was made inside one tight corridor of the 2000s and the bag functions as a dated artifact of it. The Luggage runs the same mechanism at It-bag scale: retired in the Slimane era, its entire population is Philo-era by definition, which among other things means every genuine one wears the accented logo. The second clock is the fraudster's, because a fixed supply with living demand is exactly the arithmetic the counterfeit economy prefers, and a discontinued icon is a fake magnet precisely because nobody can check it against a boutique shelf anymore.
The exit that works backward
Here is the buying tool. A birthday catches bags that are too early: a silhouette or a size that did not exist yet. An exit catches bags that are too late. A Trapeze offered as a 2019 boutique purchase is contradicting the file. A Spy with a claimed birth year outside its corridor is answering its own question. Even the soft windows work: the deeper into a model's exit corridor a claimed date falls, the more paperwork the claim owes you. The status line this register keeps on every model, production or heritage, is really an exit ledger, and reading it before reading a listing is the cheapest authentication step that exists. It is date first, pointed at the other end of the bag's life.
The vanishings that reversed
Some exits refuse to stay exits, and the reversals are where the file gets interesting, because a comeback splits a model into dateable eras. The City vanished and then returned in 2024 as the Le City, polished where the original was punk, a revival so distinct the register files it as its own model, with Le Cagole before it as a quotation rather than a revival. The Re-Edition turned a dead nylon line into a named reissue whose very name carries a year. And the Baguette remains the genre's masterpiece, a bag whose dormancy is itself disputed, the market's record showing a gap the house's memory denies. The pattern is covered fully in the Comeback File; what matters here is the dating consequence. Original run and revival are different objects with different markings, and the gap between them is a no-man's-land: a bag claimed from the years when the model did not exist is wrong twice.
The doctrine
The register's doctrine, then, in one breath. Births are announced and exits are inferred, so entries get dates and exits get windows. A closed run fixes supply, starts the collector clock and the counterfeiter's clock at the same instant, and turns the model into a corridor every genuine example must fit inside. A revival does not reopen the corridor, it opens a second one, and the silence between them convicts anything claimed from it. The newest maison in this register arrived carrying four of these exit windows in its first file, which is no accident: the houses that defined the 2010s are now the houses whose discontinuations define the resale 2020s. The bags left quietly. The silence, read properly, is as good as a stamp.