Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.585,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.74,
    "recommended_max_bid": 8,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The bag has a generic structured black frame silhouette with long thin shoulder handles, not a recognizable vintage Coach classic.",
        "photo 1: No Coach wordmark, horse-and-carriage, creed patch, serial\/style number, or hangtag is visible.",
        "photo 1: The bright gold-tone rectangular frame clasp and overall construction do not match the typical solid-brass turnlock hardware of vintage Coach.",
        "photo 1: The smooth uniform surface and polished fashion-bag presentation provide no visible evidence of glove-tanned Coach leather.",
        "photo 1: Listing title and seller brand identify it only as an unbranded retro\/light-luxury handbag; this is weak contextual evidence, not Coach evidence.",
        "photo 1: kisslock\/frame top with gold-tone bar clasp, not a Coach turnlock silhouette",
        "photo 1: long thin fixed shoulder straps with edge stitching, unlike vintage Coach buckle-adjustable or dowel-handle construction",
        "photo 1: smooth uniform black surface with sheen suggesting coated \/ synthetic material, not glove-tanned cowhide with natural grain",
        "photo 1: no creed patch, COACH wordmark, horse-and-carriage, or leather hangtag visible",
        "listing title describes 'Light Luxury Crossbody Retro Textured' with seller_brand Unbranded and no Coach cues in text"
    ],
    "missing_information": [
        "Interior view, including any creed patch, fabric tag, or brand label.",
        "Close-up of the clasp, hardware, zipper pulls, and handle attachments.",
        "Bottom, side, back, and corner views to assess construction and material.",
        "Strap and stitching close-ups; seller-stated material and dimensions.",
        "interior views including creed patch \/ lining not shown",
        "close-ups of hardware, zipper brand, and stamps not shown",
        "back, side, bottom and strap-attachment views not shown",
        "material \/ fabric tag and dimensions not provided"
    ],
    "authenticity_concerns": [
        "photo 1: The generic silhouette and modern bright gold-tone frame hardware are consistent with an unbranded lookalike rather than a Coach-made vintage bag.",
        "photo 1: No Coach identifiers are visible, so Coach manufacture or authenticity cannot be supported from this listing photo.",
        "photo 1: no creed, wordmark, hangtag or other Coach identifier visible to support Coach manufacture"
    ],
    "possible_model_reasoning": [
        "No Coach model fits: frame\/kisslock top, thin fixed straps and modern shoulder silhouette do not match any classic catalog style such as Willis (9927), Court (9870), Dinky (9375) or Station (5130)",
        "Era reasoning: construction, hardware tone and finish read as modern fast-fashion, hence modern (2000s+), non-Coach",
        "Condition: appears new\/unused in single stock-type front view, but cannot grade without bottom, corners, interior and strap-detail photos"
    ],
    "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: Bright gold-tone rectangular framed top closure; no Coach engraving is visible.",
        "leather_description": "photo 1: Smooth, uniform black exterior with a fine textured appearance; exact material is not verifiable from the photo.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: Two long, narrow fixed shoulder handles with visible edge stitching; no detachable crossbody strap is visible.",
        "stitching_description": "photo 1: Machine-like, generally even stitching is visible along the handles and upper edges; detail is limited by the single image."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0007,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.62,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The bag has a generic structured black frame silhouette with long thin shoulder handles, not a recognizable vintage Coach classic.",
                    "photo 1: No Coach wordmark, horse-and-carriage, creed patch, serial\/style number, or hangtag is visible.",
                    "photo 1: The bright gold-tone rectangular frame clasp and overall construction do not match the typical solid-brass turnlock hardware of vintage Coach.",
                    "photo 1: The smooth uniform surface and polished fashion-bag presentation provide no visible evidence of glove-tanned Coach leather.",
                    "photo 1: Listing title and seller brand identify it only as an unbranded retro\/light-luxury handbag; this is weak contextual evidence, not Coach evidence."
                ],
                "missing_information": [
                    "Interior view, including any creed patch, fabric tag, or brand label.",
                    "Close-up of the clasp, hardware, zipper pulls, and handle attachments.",
                    "Bottom, side, back, and corner views to assess construction and material.",
                    "Strap and stitching close-ups; seller-stated material and dimensions."
                ],
                "authenticity_concerns": [
                    "photo 1: The generic silhouette and modern bright gold-tone frame hardware are consistent with an unbranded lookalike rather than a Coach-made vintage bag.",
                    "photo 1: No Coach identifiers are visible, so Coach manufacture or authenticity cannot be supported from this listing photo."
                ],
                "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: Bright gold-tone rectangular framed top closure; no Coach engraving is visible.",
                    "leather_description": "photo 1: Smooth, uniform black exterior with a fine textured appearance; exact material is not verifiable from the photo.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: Two long, narrow fixed shoulder handles with visible edge stitching; no detachable crossbody strap is visible.",
                    "stitching_description": "photo 1: Machine-like, generally even stitching is visible along the handles and upper edges; detail is limited by the single image."
                },
                "possible_model_reasoning": [],
                "confidence": 0.68,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1: no creed, wordmark, hangtag or other Coach identifier visible to support Coach manufacture"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.8,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "interior views including creed patch \/ lining not shown",
                    "close-ups of hardware, zipper brand, and stamps not shown",
                    "back, side, bottom and strap-attachment views not shown",
                    "material \/ fabric tag and dimensions not provided"
                ],
                "negative_evidence": [
                    "photo 1: kisslock\/frame top with gold-tone bar clasp, not a Coach turnlock silhouette",
                    "photo 1: long thin fixed shoulder straps with edge stitching, unlike vintage Coach buckle-adjustable or dowel-handle construction",
                    "photo 1: smooth uniform black surface with sheen suggesting coated \/ synthetic material, not glove-tanned cowhide with natural grain",
                    "photo 1: no creed patch, COACH wordmark, horse-and-carriage, or leather hangtag visible",
                    "listing title describes 'Light Luxury Crossbody Retro Textured' with seller_brand Unbranded and no Coach cues in text"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone frame \/ kisslock-type bar clasp visible at top opening; no turnlock, no brass vintage hardware visible",
                    "leather_description": "smooth black uniform surface with slight sheen; appears coated \/ synthetic, not visible glove-tanned grain or patina",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "thin light-colored edge stitching along top edge and straps visible in photo 1; no detailed stitch assessment possible",
                    "strap_construction": "long thin fixed double shoulder straps, sewn directly to body, not buckle-adjustable or detachable with dogleash clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: frame\/kisslock top, thin fixed straps and modern shoulder silhouette do not match any classic catalog style such as Willis (9927), Court (9870), Dinky (9375) or Station (5130)",
                    "Era reasoning: construction, hardware tone and finish read as modern fast-fashion, hence modern (2000s+), non-Coach",
                    "Condition: appears new\/unused in single stock-type front view, but cannot grade without bottom, corners, interior and strap-detail photos"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 15838,
            "output_tokens": 664,
            "total_tokens": 16502,
            "estimated_cost_usd": 0.007929
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 16154,
            "output_tokens": 1246,
            "total_tokens": 17400,
            "estimated_cost_usd": 0.004228
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}