{
  "title": "Strong versus weak comparables: a four-row report-case audit",
  "checked_date": "2026-10-27",
  "author": "Appraisily SEO and Data Operations",
  "source_report": {
    "url": "https://assets.appraisily.com/appraisals/e744f94c-2416-45f2-8569-7c110c765546/report.pdf",
    "pages": [2, 3],
    "sha256": "B52261C36DD66C302A3F4A8C9C56407EA97614D8851262B45501884360F0DDE5",
    "effective_date": "2026-07-28",
    "described_subject_dimensions_inches": [16, 20]
  },
  "method": [
    "Transcribe the four different-artist realized-sale comparisons selected in the public sample report, including their case-specific relevance scores.",
    "Check the auction house's own public lot page when one can be retrieved; label report-only transcriptions instead of treating discovery databases as primary evidence.",
    "Keep match relevance and source auditability as separate axes. A high report relevance score does not independently verify a sale record.",
    "Keep original currencies and price bases separate. Do not rank raw GBP, EUR, and USD results or infer a universal valuation formula."
  ],
  "rows": [
    {
      "report_rank": 1,
      "artist_as_reported": "Thomas Sidney Cooper",
      "work_as_reported": "Landscape with cow and two sheep",
      "venue_as_reported": "Bearnes Hampton & Littlewood",
      "lot_as_reported": "391",
      "sale_date_as_reported": "2014-01-21",
      "currency_as_reported": "GBP",
      "reported_realized_result": 5500,
      "price_basis": "Not independently verified",
      "dimensions_as_reported": null,
      "report_relevance_score_out_of_100": 81,
      "relative_relevance_band_in_this_report": "stronger of four",
      "original_host_status": "not retrieved",
      "original_host_url": null,
      "audit_note": "Highest case-specific relevance score in the report, but dimensions, condition, provenance, price basis, and the original auction-house lot page were not independently verified in this audit."
    },
    {
      "report_rank": 2,
      "artist_as_reported": "Hendrikus van de Sande Bakhuyzen",
      "work_as_reported": "A view of Dutch meadows with cows and sheep",
      "venue_as_reported": "AAG Auctioneers",
      "lot_as_reported": "44",
      "sale_date_as_reported": "2017-06-26",
      "currency_as_reported": "EUR",
      "reported_realized_result": 2500,
      "price_basis": "AAG Hammer amount",
      "dimensions_as_reported": "38.5 x 52.8 cm",
      "report_relevance_score_out_of_100": 79,
      "relative_relevance_band_in_this_report": "stronger of four",
      "original_host_status": "retrieved and checked",
      "original_host_url": "https://veilinghuisaag.com/en/lot/hendrikus-van-de-sande-bakhuyzen-3/",
      "audit_note": "The AAG lot page supports the artist, lot, title, oil-on-panel medium, dimensions, estimate, and EUR 2,500 hammer amount. It displays June 25, 2017, while the report transcribes June 26; the one-day discrepancy is unresolved and retained."
    },
    {
      "report_rank": 3,
      "artist_as_reported": "Franz van Severdonck",
      "work_as_reported": "Cattle, sheep and poultry in a landscape",
      "venue_as_reported": "Bonhams",
      "lot_as_reported": "27",
      "sale_date_as_reported": "2012-01-25",
      "currency_as_reported": "GBP",
      "reported_realized_result": 5250,
      "price_basis": "Bonhams sold price including premium",
      "dimensions_as_reported": "45 x 66.5 cm",
      "report_relevance_score_out_of_100": 77,
      "relative_relevance_band_in_this_report": "weaker of four",
      "original_host_status": "retrieved and checked",
      "original_host_url": "https://www.bonhams.com/auction/19571/lot/27/franz-van-severdonck-belgian-1809-1889-cattle-sheep-and-poultry-in-a-landscape/",
      "audit_note": "The Bonhams lot page supports the artist, work, signed-and-dated description, oil-on-panel medium, dimensions, sale date, and GBP 5,250 sold price including premium. Its price basis is not interchangeable with AAG's hammer amount."
    },
    {
      "report_rank": 4,
      "artist_as_reported": "Matthijs Quispel",
      "work_as_reported": "Cattle and sheep on a riverbank by a farmhouse",
      "venue_as_reported": "Christie's",
      "lot_as_reported": "151",
      "sale_date_as_reported": "2006-09-06",
      "currency_as_reported": "USD",
      "reported_realized_result": 1680,
      "price_basis": "Not independently verified",
      "dimensions_as_reported": "16.5 x 21.25 in",
      "report_relevance_score_out_of_100": 72,
      "relative_relevance_band_in_this_report": "weaker of four",
      "original_host_status": "not retrieved",
      "original_host_url": null,
      "audit_note": "The report transcription is retained, but this audit did not retrieve the original Christie's lot page or independently verify the result and fee basis."
    }
  ],
  "summary": {
    "row_count": 4,
    "original_host_rows_retrieved": 2,
    "report_only_rows": 2,
    "higher_relevance_score": 81,
    "lower_relevance_score": 72,
    "relevance_score_spread": 9,
    "same_artist_as_described_subject_rows": 0,
    "price_bases_directly_comparable": false
  },
  "limitations": [
    "This is a selected four-row report-case audit, not a representative market cohort, new appraisal, or test of the report's value conclusion.",
    "All four records concern different artists from the described subject. Their relevance scores are case-specific professional judgments and are not a universal scale or independently validated formula.",
    "Two rows were checked on original auction-house pages; two remain report-only transcriptions. Auditability and relevance must not be collapsed into one score.",
    "Condition, restoration, provenance, attribution strength, and fee basis are not consistently available across the four rows.",
    "Currencies remain separate and no FX, inflation, price-per-area, market-growth, or cross-currency ranking is calculated.",
    "The AAG page/report date discrepancy and hammer-versus-premium distinction are retained rather than silently normalized."
  ]
}