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# kuenker — Künker hammer prices

Fritz Rudolf Künker, Osnabrück — Europe's largest coin auction house; every past lot keeps a static product page with estimate and hammer price (EUR).

  • Engine: api (static HTML), Firecrawl fallback. Discovery through sitemap.xml → sitemap-products-<n>.xml (29 × 25 000 URLs). /widgets/ (JS listings) is robots-disallowed and never used.
  • Flow: cursor { sitemapIndex, urlIndex } → lotsPerRun lot pages per run → one raw record per lot page.
  • Records: sale when a hammer price is printed (buyerPremiumIncluded=false), sale date = date on the page, estimate/mint/rarity/references in metadata, grade + certification from the Condition property (PCGS/NGC slab (pcgs#.grade/cert)), identifiers.kuenker_product_id, pcgs_number, <grader>_cert.
  • Lookup: any kuenker.de/<slug>/<id> URL via seeds.
  • Smoke: pnpm tsx connectors/api/kuenker/_smoke.ts 2