Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.025,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.715,
    "seller_misidentification_probability": 0.03,
    "confidence": 0.845,
    "recommended_max_bid": 10,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a small crescent-shaped crossbody handbag with a top zipper and detachable-looking strap attachments",
        "photo 2: smooth brown leather-like exterior and neatly finished curved zipper opening are visible"
    ],
    "negative_evidence": [
        "photo 1: no legible COACH wordmark, horse-and-carriage, hangtag, or other Coach identifier is visible",
        "photo 1: bright gold chain strap and chain detailing are unlike the solid-brass strap hardware commonly associated with vintage Coach classics",
        "photo 5: the interior appears fabric-lined, while many classic vintage Coach glove-tanned styles are unlined suede-back leather",
        "photo 2: the highly uniform, glossy smooth surface and narrow finished edges provide no distinctive vintage Coach construction evidence",
        "listing title: seller describes the item as unbranded; this is weak context only and is not treated as proof of non-Coach manufacture",
        "photo 1: small crescent zip-top silhouette with thin shoulder strap plus long gold chain - no vintage Coach catalog silhouette, closure, or strap type",
        "photo 1, photo 3, photo 5: bright shiny gold-tone plated zipper teeth, clasps and chain - not solid brass vintage hardware",
        "photo 4: fully lined interior in light beige shiny synthetic fabric with slip pocket - not unlined suede-back glove-tanned leather",
        "photo 2, photo 3: smooth uniform coated surface with sheen and piped edges - not full-grain glove-tanned cowhide with natural grain",
        "photo 1-5: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag, no turnlock visible"
    ],
    "missing_information": [
        "photo 5: close, straight-on photograph of the entire interior, including every label, sewn tag, and pocket",
        "photo 5: readable close-up of any interior leather creed or fabric tag; none is visible in the supplied view",
        "photo 1: close-ups of the zipper pull, chain attachments, and all hardware faces for possible markings",
        "photo 1: clear photographs of the bottom, corners, reverse, and full strap construction",
        "seller-stated dimensions and material composition",
        "photo of any interior leather creed patch or fabric brand tag straight-on in raking light",
        "photo of zipper-pull brand stamp and hardware engravings",
        "seller-stated dimensions and material content"
    ],
    "authenticity_concerns": [
        "photo 1: no Coach identifier is visible on a bag whose design is generic and commonly produced by non-Coach makers",
        "photo 1: gold chain strap and chain embellishment are not consistent with a typical vintage Coach classic silhouette or hardware package",
        "photo 5: the fabric-lined construction, if representative of the whole interior, is more consistent with a modern generic fashion bag than a classic vintage Coach bag"
    ],
    "possible_model_reasoning": [
        "The crescent silhouette does not closely match the listed classic vintage Coach models, which generally use distinctive turnlocks, dogleash clips, or catalog-specific strap constructions.",
        "No visible Coach identifier permits a reliable Coach model or style-number match.",
        "Condition appears approximately Very Good based on photos 1\u20134: exterior looks clean with no obvious major scratches or structural damage; bottom, corners, odor, and full interior condition are not adequately established.",
        "no Coach model matches: crescent zip-top with chain and fabric lining does not match City Bag, Dinky, Court, Willis or other classics which are turnlock flap and unlined glove-tanned",
        "no hard identifiers observed in any photo to decode for era or style",
        "Condition: Like New to Excellent; clean exterior (photo 1-3), clean lining (photo 4), no visible wear - capped by limited views"
    ],
    "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": "Bright gold-tone zipper teeth, chain strap, and small gold-tone clips are visible in photos 1, 2, 3, 4, and 6; no branding is legible.",
        "leather_description": "Smooth, highly uniform brown leather-like exterior with a slight sheen is visible in photos 1\u20134; exact material cannot be established from photos.",
        "lining_description": "Dark gray-brown fabric-like lining is visible in photo 5; no label or creed is visible.",
        "strap_construction": "Narrow brown strap with gold-tone clip attachments, plus a long gold-tone chain visible in photos 1 and 6.",
        "stitching_description": "Close, generally even edge stitching is visible along the zipper and body seams in photos 2\u20134; stress-point construction is not fully shown."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0006,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a small crescent-shaped crossbody handbag with a top zipper and detachable-looking strap attachments",
                    "photo 2: smooth brown leather-like exterior and neatly finished curved zipper opening are visible"
                ],
                "negative_evidence": [
                    "photo 1: no legible COACH wordmark, horse-and-carriage, hangtag, or other Coach identifier is visible",
                    "photo 1: bright gold chain strap and chain detailing are unlike the solid-brass strap hardware commonly associated with vintage Coach classics",
                    "photo 5: the interior appears fabric-lined, while many classic vintage Coach glove-tanned styles are unlined suede-back leather",
                    "photo 2: the highly uniform, glossy smooth surface and narrow finished edges provide no distinctive vintage Coach construction evidence",
                    "listing title: seller describes the item as unbranded; this is weak context only and is not treated as proof of non-Coach manufacture"
                ],
                "missing_information": [
                    "photo 5: close, straight-on photograph of the entire interior, including every label, sewn tag, and pocket",
                    "photo 5: readable close-up of any interior leather creed or fabric tag; none is visible in the supplied view",
                    "photo 1: close-ups of the zipper pull, chain attachments, and all hardware faces for possible markings",
                    "photo 1: clear photographs of the bottom, corners, reverse, and full strap construction",
                    "seller-stated dimensions and material composition"
                ],
                "authenticity_concerns": [
                    "photo 1: no Coach identifier is visible on a bag whose design is generic and commonly produced by non-Coach makers",
                    "photo 1: gold chain strap and chain embellishment are not consistent with a typical vintage Coach classic silhouette or hardware package",
                    "photo 5: the fabric-lined construction, if representative of the whole interior, is more consistent with a modern generic fashion bag than a classic vintage Coach bag"
                ],
                "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": "Bright gold-tone zipper teeth, chain strap, and small gold-tone clips are visible in photos 1, 2, 3, 4, and 6; no branding is legible.",
                    "leather_description": "Smooth, highly uniform brown leather-like exterior with a slight sheen is visible in photos 1\u20134; exact material cannot be established from photos.",
                    "lining_description": "Dark gray-brown fabric-like lining is visible in photo 5; no label or creed is visible.",
                    "strap_construction": "Narrow brown strap with gold-tone clip attachments, plus a long gold-tone chain visible in photos 1 and 6.",
                    "stitching_description": "Close, generally even edge stitching is visible along the zipper and body seams in photos 2\u20134; stress-point construction is not fully shown."
                },
                "possible_model_reasoning": [
                    "The crescent silhouette does not closely match the listed classic vintage Coach models, which generally use distinctive turnlocks, dogleash clips, or catalog-specific strap constructions.",
                    "No visible Coach identifier permits a reliable Coach model or style-number match.",
                    "Condition appears approximately Very Good based on photos 1\u20134: exterior looks clean with no obvious major scratches or structural damage; bottom, corners, odor, and full interior condition are not adequately established."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 12,
                "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": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of any interior leather creed patch or fabric brand tag straight-on in raking light",
                    "photo of zipper-pull brand stamp and hardware engravings",
                    "seller-stated dimensions and material content"
                ],
                "negative_evidence": [
                    "photo 1: small crescent zip-top silhouette with thin shoulder strap plus long gold chain - no vintage Coach catalog silhouette, closure, or strap type",
                    "photo 1, photo 3, photo 5: bright shiny gold-tone plated zipper teeth, clasps and chain - not solid brass vintage hardware",
                    "photo 4: fully lined interior in light beige shiny synthetic fabric with slip pocket - not unlined suede-back glove-tanned leather",
                    "photo 2, photo 3: smooth uniform coated surface with sheen and piped edges - not full-grain glove-tanned cowhide with natural grain",
                    "photo 1-5: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag, no turnlock visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone plated zipper with small teeth, gold-tone swivel clasps and thin curb chain; shiny plated finish, not solid brass patina",
                    "leather_description": "smooth uniform medium-brown material with slight sheen, even grain, piped edges; looks like coated split leather or faux leather, not full-grain glove-tanned cowhide",
                    "lining_description": "light beige\/taupe synthetic woven fabric lining visible in photo 4, with interior slip pocket",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even machine stitching matched to body color along zip edge, visible in photo 2",
                    "strap_construction": "thin flat brown shoulder strap with gold-tone clips plus long detachable thin gold-tone chain drop",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "no Coach model matches: crescent zip-top with chain and fabric lining does not match City Bag, Dinky, Court, Willis or other classics which are turnlock flap and unlined glove-tanned",
                    "no hard identifiers observed in any photo to decode for era or style",
                    "Condition: Like New to Excellent; clean exterior (photo 1-3), clean lining (photo 4), no visible wear - capped by limited views"
                ],
                "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": 30096,
            "output_tokens": 862,
            "total_tokens": 30958,
            "estimated_cost_usd": 0.014107
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 32202,
            "output_tokens": 1105,
            "total_tokens": 33307,
            "estimated_cost_usd": 0.007324
        }
    ]
}