Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.02,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.78,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.925,
    "recommended_max_bid": 9,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 2: smooth synthetic-looking black material and contemporary adjustable strap construction are inconsistent with typical vintage Coach glove-tanned leather.",
        "photo 3: interior is shown as a modern compartmentalized design with synthetic-looking lining; no Coach creed or leather patch is visible.",
        "photo 4: double buckle accents and magnetic snaps are visible, but there is no Coach turnlock, wordmark, carriage, or hangtag.",
        "photo 5: product imagery shows bright plated-tone fittings, painted\/finished edges, and contemporary construction rather than documented vintage Coach hardware.",
        "listing text: seller explicitly describes PU leather and polyester lining, which are strong indicators of a modern non-Coach bag.",
        "photo 1-5: double-buckle satchel\/messenger silhouette with magnetic snaps, not a Coach catalog silhouette",
        "photo 4: magnetic button clasp closure, not Coach turnlock geometry",
        "seller states Premium PU Leather & Polyester Lining - faux\/vegan materials excluded per triage",
        "photo 2,4,5: thin coated synthetic surface with high gloss, painted edges, plated light gold-tone buckles",
        "photo 3: staged catalog graphics with dimensions and icons, new mass-produced fast-fashion listing, no creed patch, no COACH wordmark, no hangtag visible"
    ],
    "missing_information": [
        "A straight-on interior-wall photo showing whether any brand label or creed patch exists.",
        "Close-ups of all hardware, zipper pulls, and any interior or exterior tags.",
        "Natural-light photos of the leather\/material surface and stitching rather than only promotional product images.",
        "creed patch close-up not shown - no stamped leather patch visible in any photo",
        "interior lining and pocket construction not shown emptied",
        "hardware engravings \/ zipper brand not shown",
        "bottom \/ corners \/ interior not shown for condition grading"
    ],
    "authenticity_concerns": [
        "photo 1: promotional\/lifestyle imagery rather than provenance or detailed construction photography limits verification.",
        "photo 2: the material appearance and dimensions are consistent with the listing's PU construction, not vintage Coach leather.",
        "photo 3: modern synthetic-lined organization is inconsistent with many classic vintage Coach silhouettes."
    ],
    "possible_model_reasoning": [
        "The rectangular flap messenger\/satchel silhouette is a generic modern design and does not closely establish a Coach model.",
        "The listing's PU leather, polyester lining, magnetic closure, and imported modern construction support a modern non-Coach classification.",
        "Condition appears New\/Like New in promotional photos, but actual used condition cannot be established from stock-style images.",
        "No Coach identifier visible in any of 5 photos: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag",
        "Materials and construction are inconsistent with vintage Coach: PU leather + polyester lining + magnetic snaps + plated buckles vs unlined glove-tanned + solid brass turnlock",
        "Silhouette is generic modern college satchel\/messenger with double buckles, not matching City Bag, Willis, Court, Station or other classics",
        "Condition: New mass-produced item per catalog images; not gradable on vintage scale"
    ],
    "estimated_era": "modern (2000s+), non-Coach",
    "observed_features": {
        "creed_present": false,
        "serial_or_style_number_present": false,
        "coach_wordmark_present": false,
        "turnlock_present": false,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photo 4: gold-tone rectangular buckle fittings and magnetic snap hardware are visible; no Coach engraving is legible.",
        "leather_description": "photo 1: smooth glossy black material appears synthetic; listing identifies it as PU leather.",
        "lining_description": "photo 3: dark lining\/compartment interior is visible but its exact material cannot be independently confirmed from the image; listing states polyester.",
        "strap_construction": "photo 2: one long adjustable shoulder strap with buckle adjustment; photo 5: detachable-looking side attachments are shown.",
        "stitching_description": "photo 4: visible perimeter and strap stitching appears machine-sewn and even; detailed stitch quality is not sufficiently shown for authentication."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.001,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 2: smooth synthetic-looking black material and contemporary adjustable strap construction are inconsistent with typical vintage Coach glove-tanned leather.",
                    "photo 3: interior is shown as a modern compartmentalized design with synthetic-looking lining; no Coach creed or leather patch is visible.",
                    "photo 4: double buckle accents and magnetic snaps are visible, but there is no Coach turnlock, wordmark, carriage, or hangtag.",
                    "photo 5: product imagery shows bright plated-tone fittings, painted\/finished edges, and contemporary construction rather than documented vintage Coach hardware.",
                    "listing text: seller explicitly describes PU leather and polyester lining, which are strong indicators of a modern non-Coach bag."
                ],
                "missing_information": [
                    "A straight-on interior-wall photo showing whether any brand label or creed patch exists.",
                    "Close-ups of all hardware, zipper pulls, and any interior or exterior tags.",
                    "Natural-light photos of the leather\/material surface and stitching rather than only promotional product images."
                ],
                "authenticity_concerns": [
                    "photo 1: promotional\/lifestyle imagery rather than provenance or detailed construction photography limits verification.",
                    "photo 2: the material appearance and dimensions are consistent with the listing's PU construction, not vintage Coach leather.",
                    "photo 3: modern synthetic-lined organization is inconsistent with many classic vintage Coach silhouettes."
                ],
                "observed_features": {
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "serial_or_style_number_present": false,
                    "serial_or_style_number": "not_visible",
                    "coach_wordmark_present": false,
                    "turnlock_present": false,
                    "hangtag_present": false,
                    "hardware_description": "photo 4: gold-tone rectangular buckle fittings and magnetic snap hardware are visible; no Coach engraving is legible.",
                    "leather_description": "photo 1: smooth glossy black material appears synthetic; listing identifies it as PU leather.",
                    "lining_description": "photo 3: dark lining\/compartment interior is visible but its exact material cannot be independently confirmed from the image; listing states polyester.",
                    "strap_construction": "photo 2: one long adjustable shoulder strap with buckle adjustment; photo 5: detachable-looking side attachments are shown.",
                    "stitching_description": "photo 4: visible perimeter and strap stitching appears machine-sewn and even; detailed stitch quality is not sufficiently shown for authentication."
                },
                "possible_model_reasoning": [
                    "The rectangular flap messenger\/satchel silhouette is a generic modern design and does not closely establish a Coach model.",
                    "The listing's PU leather, polyester lining, magnetic closure, and imported modern construction support a modern non-Coach classification.",
                    "Condition appears New\/Like New in promotional photos, but actual used condition cannot be established from stock-style images."
                ],
                "confidence": 0.9,
                "recommended_max_bid": 8,
                "estimated_resale_low": 8,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.95,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 5,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "creed patch close-up not shown - no stamped leather patch visible in any photo",
                    "interior lining and pocket construction not shown emptied",
                    "hardware engravings \/ zipper brand not shown",
                    "bottom \/ corners \/ interior not shown for condition grading"
                ],
                "negative_evidence": [
                    "photo 1-5: double-buckle satchel\/messenger silhouette with magnetic snaps, not a Coach catalog silhouette",
                    "photo 4: magnetic button clasp closure, not Coach turnlock geometry",
                    "seller states Premium PU Leather & Polyester Lining - faux\/vegan materials excluded per triage",
                    "photo 2,4,5: thin coated synthetic surface with high gloss, painted edges, plated light gold-tone buckles",
                    "photo 3: staged catalog graphics with dimensions and icons, new mass-produced fast-fashion listing, no creed patch, no COACH wordmark, no hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "light gold-tone square buckles on flap straps and magnetic snap buttons; thin adjustable hardware, plated appearance, not solid vintage brass",
                    "leather_description": "smooth black PU faux leather with uniform coated gloss, not glove-tanned cowhide",
                    "lining_description": "not_visible in photos; seller states polyester lining",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even straight machine stitching around flap and body, dark thread",
                    "strap_construction": "thin flat adjustable detachable crossbody strap 38.9-48.5 inches per graphic, buckle adjustment",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any of 5 photos: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag",
                    "Materials and construction are inconsistent with vintage Coach: PU leather + polyester lining + magnetic snaps + plated buckles vs unlined glove-tanned + solid brass turnlock",
                    "Silhouette is generic modern college satchel\/messenger with double buckles, not matching City Bag, Willis, Court, Station or other classics",
                    "Condition: New mass-produced item per catalog images; not gradable on vintage scale"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
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            "output_tokens": 755,
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            "estimated_cost_usd": 0.008842
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
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}