Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.02,
    "vintage_probability": 0.025,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.03,
    "confidence": 0.855,
    "recommended_max_bid": 9,
    "estimated_resale_low": 5,
    "estimated_resale_high": 22.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 3: the bag has a highly glossy patent-like synthetic surface, inconsistent with vintage Coach glove-tanned leather.",
        "photo 1: silver-tone ball-chain straps and small plated attachment hardware are not characteristic of classic vintage Coach construction.",
        "photo 2: the rectangular satchel has generic construction and no visible Coach identifier.",
        "photo 5: no Coach wordmark, horse-and-carriage, creed patch, or leather hangtag is visible.",
        "listing description: seller identifies the material as faux leather, which strongly weighs against vintage Coach.",
        "photo 2,4,5: black high-gloss faux\/patent-like material, not glove-tanned cowhide",
        "photo 1,2,5: silver-tone ball-chain double handles, not solid brass Coach hardware",
        "photo 1-6: no creed patch, no COACH wordmark, no hangtag, no turnlock visible",
        "seller states Fully lined - Black interior lining and Faux Leather, inconsistent with unlined vintage Coach classics"
    ],
    "missing_information": [
        "photo 1-6: interior, lining, zipper, and any interior label or creed patch are not shown clearly.",
        "photo 1-6: no close-up of all hardware or stitching is provided.",
        "photo 1-6: bottom, interior contents, and strap attachment details are incompletely documented.",
        "photo 1-6: interior not shown, creed patch cannot be assessed",
        "photo 1-6: no bottom, hardware stamp, or brand mark close-up shown",
        "photo 1-6: no scale or dimensions verified in photos beyond seller text"
    ],
    "authenticity_concerns": [
        "photo 1-6: glossy faux-leather construction, plated silver-tone hardware, and decorative ball-chain straps are consistent with a generic fashion bag rather than Coach.",
        "photo 1-6: no Coach identifiers are visible; the silhouette alone is not sufficient for Coach attribution."
    ],
    "possible_model_reasoning": [
        "small 7x7.5x2.5 inch glossy tote silhouette does not match any catalog vintage Coach classic which use glove-tanned leather and brass hardware",
        "no Coach identifier visible in any of 6 photos; materials and ball-chain hardware point to modern synthetic fashion bag",
        "Condition: Very Good to Excellent exterior gloss with no obvious structural damage in photos, but interior and bottom not shown so grade capped"
    ],
    "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 1-6: silver-tone rings, clips, and decorative ball-chain straps; no turnlock or Coach engraving visible.",
        "leather_description": "photo 2-6: very glossy, smooth patent-like black or dark navy synthetic material; listing states faux leather.",
        "lining_description": "not_visible in photos; seller states fully lined black interior lining",
        "strap_construction": "photo 1-6: detachable-looking decorative ball-chain strap sections connected by small metal clips; two short handheld strap attachments are visible.",
        "stitching_description": "photo 2-6: visible perimeter stitching appears machine-sewn and generally even, but close-up quality is insufficient for detailed construction assessment."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0019,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 3: the bag has a highly glossy patent-like synthetic surface, inconsistent with vintage Coach glove-tanned leather.",
                    "photo 1: silver-tone ball-chain straps and small plated attachment hardware are not characteristic of classic vintage Coach construction.",
                    "photo 2: the rectangular satchel has generic construction and no visible Coach identifier.",
                    "photo 5: no Coach wordmark, horse-and-carriage, creed patch, or leather hangtag is visible.",
                    "listing description: seller identifies the material as faux leather, which strongly weighs against vintage Coach."
                ],
                "missing_information": [
                    "photo 1-6: interior, lining, zipper, and any interior label or creed patch are not shown clearly.",
                    "photo 1-6: no close-up of all hardware or stitching is provided.",
                    "photo 1-6: bottom, interior contents, and strap attachment details are incompletely documented."
                ],
                "authenticity_concerns": [
                    "photo 1-6: glossy faux-leather construction, plated silver-tone hardware, and decorative ball-chain straps are consistent with a generic fashion bag rather than Coach.",
                    "photo 1-6: no Coach identifiers are visible; the silhouette alone is not sufficient for Coach attribution."
                ],
                "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 1-6: silver-tone rings, clips, and decorative ball-chain straps; no turnlock or Coach engraving visible.",
                    "leather_description": "photo 2-6: very glossy, smooth patent-like black or dark navy synthetic material; listing states faux leather.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1-6: detachable-looking decorative ball-chain strap sections connected by small metal clips; two short handheld strap attachments are visible.",
                    "stitching_description": "photo 2-6: visible perimeter stitching appears machine-sewn and generally even, but close-up quality is insufficient for detailed construction assessment."
                },
                "possible_model_reasoning": [],
                "confidence": 0.86,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "photo 1-6: interior not shown, creed patch cannot be assessed",
                    "photo 1-6: no bottom, hardware stamp, or brand mark close-up shown",
                    "photo 1-6: no scale or dimensions verified in photos beyond seller text"
                ],
                "negative_evidence": [
                    "photo 2,4,5: black high-gloss faux\/patent-like material, not glove-tanned cowhide",
                    "photo 1,2,5: silver-tone ball-chain double handles, not solid brass Coach hardware",
                    "photo 1-6: no creed patch, no COACH wordmark, no hangtag, no turnlock visible",
                    "seller states Fully lined - Black interior lining and Faux Leather, inconsistent with unlined vintage Coach classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone ball\/bead chain double straps with small split rings at top edge; no brass turnlock, buckle or dogleash clips visible",
                    "leather_description": "black high-gloss faux leather \/ patent-like synthetic with high shine reflections; not matte glove-tanned leather",
                    "lining_description": "not_visible in photos; seller states fully lined black interior lining",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "thin edge stitching visible along top and side edges in photos 2 and 4; no detailed stitch close-up to assess",
                    "strap_construction": "double silver-tone bead ball-chain handles attached via metal rings to top edge; 6.5 inch drop per seller text",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "small 7x7.5x2.5 inch glossy tote silhouette does not match any catalog vintage Coach classic which use glove-tanned leather and brass hardware",
                    "no Coach identifier visible in any of 6 photos; materials and ball-chain hardware point to modern synthetic fashion bag",
                    "Condition: Very Good to Excellent exterior gloss with no obvious structural damage in photos, but interior and bottom not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
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            "output_tokens": 691,
            "total_tokens": 18453,
            "estimated_cost_usd": 0.008763
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
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}