The Method applied to
The Method applied to Antique books
The Method treats antique books as contaminated inventory until proven otherwise: the more hands that touched them, the less margin inside. Collation against the reference bibliography is a duty, not an option — missing parts are discount levers; unpublished extras are poker face territory. You decide on coherence (binding quality, provenance weight, census rarity), then price with discipline: the Discipline Ceiling formula includes transport, condition report cost, and your target margin — never what the book 'should be worth'.
The Method's take
Counterfeit-pressure law: high-value incunabula and famous imprints are faked relentlessly; authentication belongs to bibliographic experts, never to enthusiasm. Genuine-find law: untouched estate libraries and unfashionable provincial auctions yield margin; polished antiquarian stock has been priced by every professional eye before yours. Contaminated-source law: the comfort loop (receive catalog, bid, receive book) is mediocrity — discovery comes from virgin ground, where no specialist has passed. Affordable-loss rule: below the loss you can absorb, trust your collation; above it, a written opinion from a recognized rare-book expert or institution comes before purchase. Verify technical details (edition points, watermarks, binding attribution) with category specialists.
The math
A €3,000 book missing two leaves that you didn't collate becomes €800 at resale — the €2,200 lesson costs twenty-two times the 24-hour pass. A fake binding attributed to a master costs you the full invoice plus years of reputation repair; the annual pass at €3,800 is the price of half a mistake. One undiscovered Frankenstein (rebound fragments sold as complete) erases ten correct deals.
One question answered here saved you a mistake. The engine answers yours — the exact object, the exact number.
Ask the engine — 24h pass €100