Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.02,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.71,
    "seller_misidentification_probability": 0.1,
    "confidence": 0.895,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The bag has a generic quilted black synthetic-looking exterior and a wide printed logo strap, not the solid leather and understated construction associated with vintage Coach.",
        "photo 1: The strap text appears to be a generic fashion branding phrase rather than a legible COACH wordmark or Coach horse-and-carriage.",
        "photo 2: Interior appears to be black fabric or synthetic lining; no Coach creed patch or style-number tag is visible.",
        "photo 3: Quilted glossy material, small gold-tone snap, and compact zip-top crossbody construction are inconsistent with the listed vintage Coach classic models.",
        "listing description: Seller explicitly describes the exterior as faux leather and the bag as lightweight; these are strong counter-evidence for vintage Coach.",
        "photo 1, photo 3: black diamond-quilted faux\/synthetic leather with sheen - seller states faux leather, excludes vintage glove-tanned Coach",
        "photo 1: wide black fabric logo strap reading KUCHEN&BAG.1980 CITY NEW \/ ITYANDLIFE KUCH N&BAG - not Coach construction",
        "photo 1, photo 3: front slip pocket with small round gold-tone snap, not a Coach turnlock",
        "photo 2: black fabric lining in zip-top compartment, not unlined suede-back glove-tanned leather",
        "photo 1, photo 2: matching quilted zip coin pouch accessory, thin plated zippers and clasps - no solid brass Coach hardware, no creed, no hangtag, no wordmark"
    ],
    "missing_information": [
        "photo 1-3: No clear interior back-wall or pocket view showing whether any brand label or creed patch exists.",
        "photo 1-3: No close-up of zipper pulls, hardware markings, or strap attachment construction.",
        "photo 1-3: Bottom, side, and full strap-condition views are incomplete.",
        "photo 2: interior is dark with no creed patch, fabric tag, or Made-in line legible - request straight-on interior and tag photos if Coach were claimed",
        "photo 1: wide logo strap text reads KUCHEN&BAG, not COACH - no Coach wordmark or horse-and-carriage visible anywhere",
        "no bottom, side, hardware-engraving close-ups shown"
    ],
    "authenticity_concerns": [
        "photo 1: The printed strap branding and quilted faux-leather design appear to be from a generic modern fashion bag, not a Coach product.",
        "photo 2: No Coach identifier is visible in the interior; the lining and construction do not support a Coach attribution."
    ],
    "possible_model_reasoning": [
        "photo 1-3: The silhouette is a modern compact quilted crossbody with an attached coin pouch, not a recognizable vintage Coach catalog model.",
        "photo 1-3: No creed, serial, Coach wordmark, or horse-and-carriage identifier is visible; construction and materials point to a generic modern bag.",
        "Condition: approximately Very Good based on the provided photos; the exterior appears intact with minor visible surface wear, but the interior, bottom, and strap condition are incompletely documented.",
        "No Coach model fits: quilted faux-leather zip-top crossbody with logo fabric strap and coin pouch has no counterpart in 1970s-1990s glove-tanned catalog or modern Coach lines",
        "No hard identifiers: no creed patch, no serial, no COACH wordmark, no horse-and-carriage, no leather hangtag visible in any photo",
        "Construction is modern fast-fashion: faux leather, fabric lining, fabric logo strap, plated hardware - coach_probability <=0.05 per faux\/PU rule",
        "Condition: Like New \/ Excellent per photos - quilt looks clean and uniform in photo 1 and photo 3, interior dark but appears empty in photo 2; graded as generic bag, not Coach condition tier"
    ],
    "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 and photo 3: Small gold-tone snap and gold-tone strap clips are visible; no Coach engraving is visible.",
        "leather_description": "photo 1-3: Black quilted, glossy material described by the seller as faux leather; it appears synthetic rather than glove-tanned cowhide.",
        "lining_description": "photo 2: Dark textile or synthetic-looking lining is visible inside the zip-top compartment; no label is visible.",
        "strap_construction": "photo 1: Adjustable wide black fabric strap with large white printed lettering and metal clips; attached zippered coin pouch is visible.",
        "stitching_description": "photo 3: Regular machine stitching outlines the quilted panels; no distinctive vintage Coach construction can be established."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0027,
    "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": 0.82,
                "seller_misidentification_probability": 0.18,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The bag has a generic quilted black synthetic-looking exterior and a wide printed logo strap, not the solid leather and understated construction associated with vintage Coach.",
                    "photo 1: The strap text appears to be a generic fashion branding phrase rather than a legible COACH wordmark or Coach horse-and-carriage.",
                    "photo 2: Interior appears to be black fabric or synthetic lining; no Coach creed patch or style-number tag is visible.",
                    "photo 3: Quilted glossy material, small gold-tone snap, and compact zip-top crossbody construction are inconsistent with the listed vintage Coach classic models.",
                    "listing description: Seller explicitly describes the exterior as faux leather and the bag as lightweight; these are strong counter-evidence for vintage Coach."
                ],
                "missing_information": [
                    "photo 1-3: No clear interior back-wall or pocket view showing whether any brand label or creed patch exists.",
                    "photo 1-3: No close-up of zipper pulls, hardware markings, or strap attachment construction.",
                    "photo 1-3: Bottom, side, and full strap-condition views are incomplete."
                ],
                "authenticity_concerns": [
                    "photo 1: The printed strap branding and quilted faux-leather design appear to be from a generic modern fashion bag, not a Coach product.",
                    "photo 2: No Coach identifier is visible in the interior; the lining and construction do not support a 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 and photo 3: Small gold-tone snap and gold-tone strap clips are visible; no Coach engraving is visible.",
                    "leather_description": "photo 1-3: Black quilted, glossy material described by the seller as faux leather; it appears synthetic rather than glove-tanned cowhide.",
                    "lining_description": "photo 2: Dark textile or synthetic-looking lining is visible inside the zip-top compartment; no label is visible.",
                    "strap_construction": "photo 1: Adjustable wide black fabric strap with large white printed lettering and metal clips; attached zippered coin pouch is visible.",
                    "stitching_description": "photo 3: Regular machine stitching outlines the quilted panels; no distinctive vintage Coach construction can be established."
                },
                "possible_model_reasoning": [
                    "photo 1-3: The silhouette is a modern compact quilted crossbody with an attached coin pouch, not a recognizable vintage Coach catalog model.",
                    "photo 1-3: No creed, serial, Coach wordmark, or horse-and-carriage identifier is visible; construction and materials point to a generic modern bag.",
                    "Condition: approximately Very Good based on the provided photos; the exterior appears intact with minor visible surface wear, but the interior, bottom, and strap condition are incompletely documented."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 8,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo 2: interior is dark with no creed patch, fabric tag, or Made-in line legible - request straight-on interior and tag photos if Coach were claimed",
                    "photo 1: wide logo strap text reads KUCHEN&BAG, not COACH - no Coach wordmark or horse-and-carriage visible anywhere",
                    "no bottom, side, hardware-engraving close-ups shown"
                ],
                "negative_evidence": [
                    "photo 1, photo 3: black diamond-quilted faux\/synthetic leather with sheen - seller states faux leather, excludes vintage glove-tanned Coach",
                    "photo 1: wide black fabric logo strap reading KUCHEN&BAG.1980 CITY NEW \/ ITYANDLIFE KUCH N&BAG - not Coach construction",
                    "photo 1, photo 3: front slip pocket with small round gold-tone snap, not a Coach turnlock",
                    "photo 2: black fabric lining in zip-top compartment, not unlined suede-back glove-tanned leather",
                    "photo 1, photo 2: matching quilted zip coin pouch accessory, thin plated zippers and clasps - no solid brass Coach hardware, no creed, no hangtag, no wordmark"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone thin plated snap on front pocket and zipper pulls \/ clasps; not solid brass vintage turnlock, buckle, or dogleash hardware",
                    "leather_description": "black quilted faux leather as seller states; smooth synthetic sheen in photo 1 and photo 3, not full-grain glove-tanned cowhide",
                    "lining_description": "black fabric lining visible in photo 2 interior view",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "diamond quilt stitching across body and coin pouch visible in photo 1 and photo 3",
                    "strap_construction": "wide black woven fabric adjustable crossbody strap with white logo text, attached with gold-tone swivel clasps in photo 1",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: quilted faux-leather zip-top crossbody with logo fabric strap and coin pouch has no counterpart in 1970s-1990s glove-tanned catalog or modern Coach lines",
                    "No hard identifiers: no creed patch, no serial, no COACH wordmark, no horse-and-carriage, no leather hangtag visible in any photo",
                    "Construction is modern fast-fashion: faux leather, fabric lining, fabric logo strap, plated hardware - coach_probability <=0.05 per faux\/PU rule",
                    "Condition: Like New \/ Excellent per photos - quilt looks clean and uniform in photo 1 and photo 3, interior dark but appears empty in photo 2; graded as generic bag, not Coach condition tier"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16756,
            "output_tokens": 794,
            "total_tokens": 17550,
            "estimated_cost_usd": 0.008608
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17176,
            "output_tokens": 1298,
            "total_tokens": 18474,
            "estimated_cost_usd": 0.004474
        }
    ]
}