Vintage Coach Hunter

{
    "is_handbag_probability": 0.115,
    "coach_probability": 0.015,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.015,
    "image_quality_score": 0.69,
    "seller_misidentification_probability": 0.04,
    "confidence": 0.875,
    "recommended_max_bid": 8.5,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 22.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: the item is a multi-pocket backpack\/rucksack rather than a classic Coach handbag silhouette.",
        "photo 1: the exterior appears to be synthetic PU leather, consistent with the seller's description, not glove-tanned cowhide.",
        "photo 1: a rectangular front patch visibly reads YNGDAK rather than COACH.",
        "photo 1: the large multi-pocket construction, decorative central clasp, and numerous bright plated hardware pieces are not characteristic of the listed vintage Coach classics.",
        "photo 2: no Coach wordmark, horse-and-carriage, creed patch, or recognizable Coach identifier is visible.",
        "photo 1: backpack \/ rucksack silhouette with top flap, front drawstring pouch and side zip pockets - not a Coach classic handbag silhouette",
        "photo 1: seller title states PU leather - faux leather mandates coach_probability <=0.05 per skill",
        "photo 2: embossed flap patch reads YINGDAK with winged emblem - visible non-Coach brand mark, no COACH wordmark or horse-and-carriage",
        "photo 1: antiqued brass-tone doghook \/ trigger clasp closure, not Coach turnlock geometry",
        "photo 1-2: contrast light stitching and thin wrinkled PU material, not glove-tanned cowhide with tone-matched stitching"
    ],
    "missing_information": [
        "photo 1-2: no interior view or lining label is provided.",
        "photo 1-2: no close-up of the maker patch or hardware markings is provided, although the visible patch appears to identify YNGDAK.",
        "photo 1-2: no bottom, strap attachment, or zipper-pull detail is provided.",
        "photo 1-2: interior \/ lining not shown",
        "photo 1-2: creed patch not shown - no interior back wall view",
        "photo 1-2: no bottom, side, or back-strap attachment detail",
        "photo 1-2: no hardware brand stamps or Made-in tag shown"
    ],
    "authenticity_concerns": [
        "photo 1: visible YNGDAK branding and PU construction indicate a non-Coach lookalike\/product rather than a Coach bag.",
        "photo 1: the fashion-style multi-pocket backpack design and synthetic leather are inconsistent with vintage Coach construction."
    ],
    "possible_model_reasoning": [
        "photo 1-2: no Coach model is plausible because the visible maker patch reads YNGDAK and the item is a modern multi-pocket backpack.",
        "photo 1-2: the synthetic material and modern utility-backpack design support a modern non-Coach classification.",
        "Condition cannot be reliably graded from these apparent product photos; visible exterior appears unused, but interior, odor, and functional hardware are unknown.",
        "Condition: Like New \/ new stock appearance in catalog-style white-background photos, but condition grade capped by no interior, bottom, or strap-wear views",
        "No Coach identifiers visible: no creed, no COACH wordmark, no hangtag, no solid-brass turnlock",
        "Visible YINGDAK winged brand patch plus PU material and backpack construction excludes vintage Coach classics",
        "No Coach model matches; rated <=0.10 so no Coach models listed per skill"
    ],
    "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 1: multiple brass-tone\/plated clips, rings, zipper pulls, and decorative clasp hardware are visible; no Coach engraving is legible.",
        "leather_description": "photo 1: smooth, heavily embossed\/textured brown synthetic-looking material with surface wrinkling; seller identifies it as PU leather.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: two adjustable-looking backpack shoulder straps and a top carry handle are visible; strap backs and attachment details are not shown.",
        "stitching_description": "photo 1: contrasting light machine stitching is visible around flap, pockets, and straps; construction appears mass-produced."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0014,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.08,
                "coach_probability": 0.01,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.01,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.05,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: the item is a multi-pocket backpack\/rucksack rather than a classic Coach handbag silhouette.",
                    "photo 1: the exterior appears to be synthetic PU leather, consistent with the seller's description, not glove-tanned cowhide.",
                    "photo 1: a rectangular front patch visibly reads YNGDAK rather than COACH.",
                    "photo 1: the large multi-pocket construction, decorative central clasp, and numerous bright plated hardware pieces are not characteristic of the listed vintage Coach classics.",
                    "photo 2: no Coach wordmark, horse-and-carriage, creed patch, or recognizable Coach identifier is visible."
                ],
                "missing_information": [
                    "photo 1-2: no interior view or lining label is provided.",
                    "photo 1-2: no close-up of the maker patch or hardware markings is provided, although the visible patch appears to identify YNGDAK.",
                    "photo 1-2: no bottom, strap attachment, or zipper-pull detail is provided."
                ],
                "authenticity_concerns": [
                    "photo 1: visible YNGDAK branding and PU construction indicate a non-Coach lookalike\/product rather than a Coach bag.",
                    "photo 1: the fashion-style multi-pocket backpack design and synthetic leather are inconsistent with vintage Coach construction."
                ],
                "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 1: multiple brass-tone\/plated clips, rings, zipper pulls, and decorative clasp hardware are visible; no Coach engraving is legible.",
                    "leather_description": "photo 1: smooth, heavily embossed\/textured brown synthetic-looking material with surface wrinkling; seller identifies it as PU leather.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: two adjustable-looking backpack shoulder straps and a top carry handle are visible; strap backs and attachment details are not shown.",
                    "stitching_description": "photo 1: contrasting light machine stitching is visible around flap, pockets, and straps; construction appears mass-produced."
                },
                "possible_model_reasoning": [
                    "photo 1-2: no Coach model is plausible because the visible maker patch reads YNGDAK and the item is a modern multi-pocket backpack.",
                    "photo 1-2: the synthetic material and modern utility-backpack design support a modern non-Coach classification.",
                    "Condition cannot be reliably graded from these apparent product photos; visible exterior appears unused, but interior, odor, and functional hardware are unknown."
                ],
                "confidence": 0.9,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 20
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.15,
                "missing_information": [
                    "photo 1-2: interior \/ lining not shown",
                    "photo 1-2: creed patch not shown - no interior back wall view",
                    "photo 1-2: no bottom, side, or back-strap attachment detail",
                    "photo 1-2: no hardware brand stamps or Made-in tag shown"
                ],
                "negative_evidence": [
                    "photo 1: backpack \/ rucksack silhouette with top flap, front drawstring pouch and side zip pockets - not a Coach classic handbag silhouette",
                    "photo 1: seller title states PU leather - faux leather mandates coach_probability <=0.05 per skill",
                    "photo 2: embossed flap patch reads YINGDAK with winged emblem - visible non-Coach brand mark, no COACH wordmark or horse-and-carriage",
                    "photo 1: antiqued brass-tone doghook \/ trigger clasp closure, not Coach turnlock geometry",
                    "photo 1-2: contrast light stitching and thin wrinkled PU material, not glove-tanned cowhide with tone-matched stitching"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "photo 1-2: antiqued brass-tone base-metal doghook \/ trigger-hook flap clasp with rivets; side zip pockets with unbranded pulls; not solid brass Coach turnlock",
                    "leather_description": "photo 1-2: tan \/ cognac PU faux leather with wrinkled coated texture and sheen; consistent with seller-stated PU, not glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "photo 1-2: visible contrast off-white machine stitching around flap edge and pockets",
                    "strap_construction": "photo 1-2: two wide PU backpack shoulder straps plus short top loop; front flap tether strap with snap rivet",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Condition: Like New \/ new stock appearance in catalog-style white-background photos, but condition grade capped by no interior, bottom, or strap-wear views",
                    "No Coach identifiers visible: no creed, no COACH wordmark, no hangtag, no solid-brass turnlock",
                    "Visible YINGDAK winged brand patch plus PU material and backpack construction excludes vintage Coach classics",
                    "No Coach model matches; rated <=0.10 so no Coach models listed per skill"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.02
            }
        }
    ],
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            "model_name": "meta:muse-spark-1.3-contributor",
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}