Vintage Coach Hunter

{
    "is_handbag_probability": 0.46,
    "coach_probability": 0.01,
    "vintage_probability": 0.01,
    "authenticity_confidence": 0.01,
    "image_quality_score": 0.89,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.945,
    "recommended_max_bid": 8.5,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: the bag is visibly marked BIGEDAISHU with a kangaroo logo, not COACH.",
        "photo 1: the listing title identifies the material as PU leather, which is inconsistent with vintage Coach glove-tanned leather.",
        "photo 1: the item is a backpack\/convertible shoulder bag with modern silver-tone hardware and striped webbing straps, not a recognizable vintage Coach classic.",
        "photo 2: close-up branding again shows a non-Coach logo and text; the hardware and zipper construction are modern plated components.",
        "photo 3: product information imagery shows a modern multi-compartment backpack design and synthetic-looking lining.",
        "photo 4: the catalog image presents multiple colorways and a contemporary mass-market product format.",
        "photo 1: large kangaroo logo and BIGEDAISHU wordmark on front, not Coach",
        "photo 1: seller title states PU leather - faux leather excludes vintage Coach",
        "photo 1-4: modern convertible backpack silhouette with top handle and striped webbing shoulder strap, no Coach catalog match",
        "photo 2-3: silver-tone \/ nickel hardware with modern buckle closure, not vintage solid brass turnlock",
        "photo 3: brown synthetic fabric interior lining, not unlined glove-tanned suede",
        "photo 2 detail 5: non-Coach MQDS kangaroo zipper charm"
    ],
    "missing_information": [
        "photo 1: no authentic Coach interior creed patch is shown.",
        "photo 1: no Coach serial or style number is shown.",
        "photo 1: no Coach hangtag, wordmark, or horse-and-carriage branding is shown.",
        "photo 3: the actual interior and any manufacturing labels are not independently photographed; the image is promotional product imagery.",
        "No creed patch shown - not expected for this branded PU backpack",
        "No Coach identifiers of any kind visible to verify"
    ],
    "authenticity_concerns": [
        "photo 1: visible BIGEDAISHU branding identifies the item as a different brand rather than Coach.",
        "photo 1: PU material, modern silver-tone hardware, and webbing straps are inconsistent with the vintage Coach construction being sought."
    ],
    "possible_model_reasoning": [
        "Not a Coach silhouette: modern PU convertible backpack with exterior kangaroo branding has no match in Coach classic or modern catalog",
        "Materials rule out vintage Coach: PU leather, silver-tone hardware, fabric lining per \u00a71 and \u00a73 vs unlined glove-tanned + solid brass",
        "Branding is positively non-Coach: BIGEDAISHU \/ MAIQIDAISHU \/ MQDS kangaroo marks in photos 1-4",
        "Condition: New-appearing catalog product photos, not gradable as vintage; no wear visible"
    ],
    "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: silver-tone rectangular strap hardware, snap studs, lobster-style clips, and zippers; the hanging rectangular tag appears to carry non-Coach branding.",
        "leather_description": "photo 1: pebbled synthetic-looking red material; seller explicitly states PU leather.",
        "lining_description": "photo 3: light fabric lining is visible in promotional imagery, with multiple compartments; exact material and construction are not independently verifiable.",
        "strap_construction": "photo 1: two backpack straps plus a detachable wide striped webbing shoulder strap with metal clips.",
        "stitching_description": "photo 1: visible machine stitching appears generally even around the flap and panels; detailed stress-point inspection is unavailable."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0099,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.72,
                "coach_probability": 0.01,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.01,
                "image_quality_score": 0.93,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: the bag is visibly marked BIGEDAISHU with a kangaroo logo, not COACH.",
                    "photo 1: the listing title identifies the material as PU leather, which is inconsistent with vintage Coach glove-tanned leather.",
                    "photo 1: the item is a backpack\/convertible shoulder bag with modern silver-tone hardware and striped webbing straps, not a recognizable vintage Coach classic.",
                    "photo 2: close-up branding again shows a non-Coach logo and text; the hardware and zipper construction are modern plated components.",
                    "photo 3: product information imagery shows a modern multi-compartment backpack design and synthetic-looking lining.",
                    "photo 4: the catalog image presents multiple colorways and a contemporary mass-market product format."
                ],
                "missing_information": [
                    "photo 1: no authentic Coach interior creed patch is shown.",
                    "photo 1: no Coach serial or style number is shown.",
                    "photo 1: no Coach hangtag, wordmark, or horse-and-carriage branding is shown.",
                    "photo 3: the actual interior and any manufacturing labels are not independently photographed; the image is promotional product imagery."
                ],
                "authenticity_concerns": [
                    "photo 1: visible BIGEDAISHU branding identifies the item as a different brand rather than Coach.",
                    "photo 1: PU material, modern silver-tone hardware, and webbing straps are inconsistent with the vintage Coach construction being sought."
                ],
                "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": true,
                    "hardware_description": "photo 1: silver-tone rectangular strap hardware, snap studs, lobster-style clips, and zippers; the hanging rectangular tag appears to carry non-Coach branding.",
                    "leather_description": "photo 1: pebbled synthetic-looking red material; seller explicitly states PU leather.",
                    "lining_description": "photo 3: light fabric lining is visible in promotional imagery, with multiple compartments; exact material and construction are not independently verifiable.",
                    "strap_construction": "photo 1: two backpack straps plus a detachable wide striped webbing shoulder strap with metal clips.",
                    "stitching_description": "photo 1: visible machine stitching appears generally even around the flap and panels; detailed stress-point inspection is unavailable."
                },
                "possible_model_reasoning": [],
                "confidence": 0.94,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.01,
                "coach_probability": 0.01,
                "confidence": 0.95,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.85,
                "is_handbag_probability": 0.2,
                "missing_information": [
                    "No creed patch shown - not expected for this branded PU backpack",
                    "No Coach identifiers of any kind visible to verify"
                ],
                "negative_evidence": [
                    "photo 1: large kangaroo logo and BIGEDAISHU wordmark on front, not Coach",
                    "photo 1: seller title states PU leather - faux leather excludes vintage Coach",
                    "photo 1-4: modern convertible backpack silhouette with top handle and striped webbing shoulder strap, no Coach catalog match",
                    "photo 2-3: silver-tone \/ nickel hardware with modern buckle closure, not vintage solid brass turnlock",
                    "photo 3: brown synthetic fabric interior lining, not unlined glove-tanned suede",
                    "photo 2 detail 5: non-Coach MQDS kangaroo zipper charm"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone metal buckle, D-rings, lobster clips and zippers; modern plated finish",
                    "leather_description": "pebbled-grain PU \/ faux leather in red and black, uniform coated appearance, not glove-tanned cowhide",
                    "lining_description": "brown synthetic fabric lining visible in photo 3 interior view",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even machine stitching matched to body color",
                    "strap_construction": "dual PU backpack straps plus top handle plus detachable striped webbing crossbody strap on metal clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Not a Coach silhouette: modern PU convertible backpack with exterior kangaroo branding has no match in Coach classic or modern catalog",
                    "Materials rule out vintage Coach: PU leather, silver-tone hardware, fabric lining per \u00a71 and \u00a73 vs unlined glove-tanned + solid brass",
                    "Branding is positively non-Coach: BIGEDAISHU \/ MAIQIDAISHU \/ MQDS kangaroo marks in photos 1-4",
                    "Condition: New-appearing catalog product photos, not gradable as vintage; no wear visible"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.01
            }
        }
    ],
    "_usage": [
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            "input_tokens": 22774,
            "output_tokens": 706,
            "total_tokens": 23480,
            "estimated_cost_usd": 0.010804
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        {
            "model_name": "meta:muse-spark-1.3-contributor",
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}