Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.015,
    "vintage_probability": 0.76,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.835,
    "seller_misidentification_probability": 0.44,
    "confidence": 0.93,
    "recommended_max_bid": 15,
    "estimated_resale_low": 20,
    "estimated_resale_high": 65,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: all-over repeating interlocking GG pattern is inconsistent with Coach construction and is associated with Gucci.",
        "photo 2: oval leather medallion visibly carries a Gucci-style interlocking-G emblem.",
        "photos 4-6: zipper pulls visibly read Gucci and display interlocking-G hardware.",
        "listing description: seller states PVC shell, which is not the glove-tanned leather population where unidentified vintage Coach commonly appears.",
        "photo 1, photo 2: all-over micro GG monogram PVC shell with tan trim - not Coach glove-tanned leather, not Coach Signature C pattern",
        "photo 2: oval leather patch with interlocking G logo, not Coach creed or hangtag",
        "photo 4: zipper pull stamped Gucci OF ITALY in script",
        "photo 5: zipper pull with interlocking G logo",
        "photo 3: tan synthetic lining, no unlined suede, no Coach creed patch on back wall",
        "photo 1-6: no COACH wordmark, no horse-and-carriage, no turnlock, no brass Coach hardware, no leather hangtag"
    ],
    "missing_information": [
        "photo 3: interior is shown but no Coach creed patch or fabric brand tag is visible.",
        "No clear full bottom, side, or exterior-back views beyond the provided photos.",
        "No close-up of the interior label or any manufacturing tag.",
        "No Coach creed patch visible in any photo - no further Coach-specific views needed given overt Gucci branding",
        "Gucci authenticity (serial, interior tag) not shown - cannot assess if Gucci is genuine"
    ],
    "authenticity_concerns": [
        "photos 4-6: visible Gucci branding and interlocking-G hardware make this a non-Coach bag; Coach probability is very low.",
        "The visible PVC shell, Gucci monogram, and Gucci-marked zipper pulls are internally inconsistent with a vintage Coach handbag.",
        "photo 4, photo 5, photo 6: bag carries Gucci branding (Gucci OF ITALY script and interlocking G) - inconsistent with Coach manufacture",
        "photo 1, photo 2: PVC \/ coated canvas monogram shell inconsistent with vintage Coach glove-tanned leather construction"
    ],
    "possible_model_reasoning": [
        "The structured rounded crossbody silhouette is not sufficient for a Coach model match, and the visible Gucci branding rules out the listed Coach catalog candidates.",
        "photo 3: no readable creed, serial, or Coach identifier is visible; the interior view is not a Coach creed close-up.",
        "Condition: Good; visible edge\/trim wear, discoloration, and worn strap attachment leather (photos 3-6).",
        "No Coach model fits: silhouette is zip-top half-moon \/ clam crossbody in monogram PVC with Gucci hardware, not a catalog Coach classic shape",
        "Serial decode: none - no Coach number visible",
        "Era reasoning: construction and Gucci micro-GG print suggest 1980s-1990s Gucci accessory, hence vintage in general sense but modern (2000s+), non-Coach for Coach-era taxonomy",
        "Condition: Good; exterior print shows soiling and trim wear (photo 1, photo 2), interior shows wear\/discoloration (photo 3), strap and pull show wear\/tarnish (photo 4-6)"
    ],
    "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": "photos 4-6: gold-tone and silver-tone hardware; zipper pulls visibly bear Gucci script\/interlocking-G branding. No Coach turnlock is visible.",
        "leather_description": "photos 1-2: beige coated\/PVC shell with repeating interlocking-G monogram and brown trim; seller also states PVC.",
        "lining_description": "photo 3: gold\/brown fabric-like interior lining is visible, with wear and discoloration; no Coach label is visible.",
        "strap_construction": "photos 1 and 4-6: long adjustable brown strap attached with metal swivel clips; visible strap edges show wear.",
        "stitching_description": "photos 1-3: perimeter stitching is visible and generally even, with visible wear and discoloration around the edges."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0268,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.82,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.92,
                "seller_misidentification_probability": 0.86,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: all-over repeating interlocking GG pattern is inconsistent with Coach construction and is associated with Gucci.",
                    "photo 2: oval leather medallion visibly carries a Gucci-style interlocking-G emblem.",
                    "photos 4-6: zipper pulls visibly read Gucci and display interlocking-G hardware.",
                    "listing description: seller states PVC shell, which is not the glove-tanned leather population where unidentified vintage Coach commonly appears."
                ],
                "missing_information": [
                    "photo 3: interior is shown but no Coach creed patch or fabric brand tag is visible.",
                    "No clear full bottom, side, or exterior-back views beyond the provided photos.",
                    "No close-up of the interior label or any manufacturing tag."
                ],
                "authenticity_concerns": [
                    "photos 4-6: visible Gucci branding and interlocking-G hardware make this a non-Coach bag; Coach probability is very low.",
                    "The visible PVC shell, Gucci monogram, and Gucci-marked zipper pulls are internally inconsistent with a vintage Coach handbag."
                ],
                "observed_features": {
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "serial_or_style_number_present": false,
                    "serial_or_style_number": "not_visible",
                    "coach_wordmark_present": true,
                    "turnlock_present": false,
                    "hangtag_present": false,
                    "hardware_description": "photos 4-6: gold-tone and silver-tone hardware; zipper pulls visibly bear Gucci script\/interlocking-G branding. No Coach turnlock is visible.",
                    "leather_description": "photos 1-2: beige coated\/PVC shell with repeating interlocking-G monogram and brown trim; seller also states PVC.",
                    "lining_description": "photo 3: gold\/brown fabric-like interior lining is visible, with wear and discoloration; no Coach label is visible.",
                    "strap_construction": "photos 1 and 4-6: long adjustable brown strap attached with metal swivel clips; visible strap edges show wear.",
                    "stitching_description": "photos 1-3: perimeter stitching is visible and generally even, with visible wear and discoloration around the edges."
                },
                "possible_model_reasoning": [
                    "The structured rounded crossbody silhouette is not sufficient for a Coach model match, and the visible Gucci branding rules out the listed Coach catalog candidates.",
                    "photo 3: no readable creed, serial, or Coach identifier is visible; the interior view is not a Coach creed close-up.",
                    "Condition: Good; visible edge\/trim wear, discoloration, and worn strap attachment leather (photos 3-6)."
                ],
                "confidence": 0.94,
                "recommended_max_bid": 15,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 4, photo 5, photo 6: bag carries Gucci branding (Gucci OF ITALY script and interlocking G) - inconsistent with Coach manufacture",
                    "photo 1, photo 2: PVC \/ coated canvas monogram shell inconsistent with vintage Coach glove-tanned leather construction"
                ],
                "authenticity_confidence": 0.01,
                "coach_probability": 0.01,
                "confidence": 0.92,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 70,
                "estimated_resale_low": 20,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "No Coach creed patch visible in any photo - no further Coach-specific views needed given overt Gucci branding",
                    "Gucci authenticity (serial, interior tag) not shown - cannot assess if Gucci is genuine"
                ],
                "negative_evidence": [
                    "photo 1, photo 2: all-over micro GG monogram PVC shell with tan trim - not Coach glove-tanned leather, not Coach Signature C pattern",
                    "photo 2: oval leather patch with interlocking G logo, not Coach creed or hangtag",
                    "photo 4: zipper pull stamped Gucci OF ITALY in script",
                    "photo 5: zipper pull with interlocking G logo",
                    "photo 3: tan synthetic lining, no unlined suede, no Coach creed patch on back wall",
                    "photo 1-6: no COACH wordmark, no horse-and-carriage, no turnlock, no brass Coach hardware, no leather hangtag"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone zip top zipper with leather-tab pull stamped Gucci OF ITALY and interlocking G on reverse (photo 4, photo 5, photo 6); thin dogleash-type clips for detachable strap",
                    "leather_description": "not glove-tanned leather; beige PVC \/ coated canvas with small GG repeat print and tan vinyl\/leather trim (photo 1, photo 2) - seller states PVC shell",
                    "lining_description": "tan \/ gold synthetic lining, no suede, no creed patch visible (photo 3)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "edge stitching around trim, visible center bottom seam (photo 1, photo 2)",
                    "strap_construction": "thin brown detachable crossbody strap with metal dogleash clips (photo 1, photo 4, photo 5)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: silhouette is zip-top half-moon \/ clam crossbody in monogram PVC with Gucci hardware, not a catalog Coach classic shape",
                    "Serial decode: none - no Coach number visible",
                    "Era reasoning: construction and Gucci micro-GG print suggest 1980s-1990s Gucci accessory, hence vintage in general sense but modern (2000s+), non-Coach for Coach-era taxonomy",
                    "Condition: Good; exterior print shows soiling and trim wear (photo 1, photo 2), interior shows wear\/discoloration (photo 3), strap and pull show wear\/tarnish (photo 4-6)"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.7
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18080,
            "output_tokens": 786,
            "total_tokens": 18866,
            "estimated_cost_usd": 0.009118
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18631,
            "output_tokens": 1853,
            "total_tokens": 20484,
            "estimated_cost_usd": 0.005209
        }
    ]
}