Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.83,
    "seller_misidentification_probability": 0.02,
    "confidence": 0.91,
    "recommended_max_bid": 9,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: red quilted shoulder bag with chain-and-leather strap and no visible Coach wordmark, carriage, hangtag, or creed.",
        "photo 2: gold-tone ring hardware and chain construction appear modern and decorative rather than vintage Coach brass hardware.",
        "photo 4: visible interior is smooth burgundy synthetic-looking lining with no Coach creed patch or readable brand identifier.",
        "photo 1: bag is wrapped in protective plastic and appears brand new, consistent with a modern unbranded fashion bag rather than vintage Coach.",
        "photo 1: quilted flap-and-chain design is a generic designer-inspired silhouette and does not match the listed vintage Coach model catalog.",
        "photo 1-3,5-6: red diamond-quilted flap bag with chain-through-strap and rear slip pocket - silhouette matches modern fast-fashion Chanel-style flap, not any catalog Coach classic",
        "photo 1-6: bright gold-tone plated chain, large eyelets and flap lock - lightweight plated look, not 1970s-1990s solid brass turnlock with oval back plate",
        "photo 4: smooth dark-red synthetic-looking flap underside and interior, no leather creed patch visible on back wall",
        "photo 1-3,5-6: high-sheen smooth quilted material with puffy fill, not matte glove-tanned cowhide with natural grain\/suede back",
        "photo 1-2,5-6: chain still in plastic wrap and tissue stuffing, listed as Brand New Unbranded - new-in-wrap unbranded status is typical modern synthetic bag, not vintage Coach"
    ],
    "missing_information": [
        "photo 4: the interior is only partially shown; request a fully emptied interior, all pockets, and every seam for any concealed label.",
        "photo 4: request a close-up of the interior snap, zipper, and any fabric or leather brand tags.",
        "photo 1: request close-ups of all hardware and the underside\/back of the flap, although no Coach identifier is currently visible.",
        "photo 1: seller-stated dimensions and material composition are not provided.",
        "photo of any interior leather creed patch or fabric brand tag straight-on in raking light (photo 4 shows interior but no patch visible)",
        "photo of hardware engravings \/ zipper-pull stamps and Made-in line",
        "material confirmation from seller (leather vs faux\/PU)"
    ],
    "authenticity_concerns": [
        "photo 1: generic quilted construction and chain strap evoke a designer-inspired lookalike rather than a documented Coach design.",
        "photo 4: no visible creed, serial\/style number, or Coach branding; the smooth lining and modern construction are inconsistent with classic vintage Coach indicators."
    ],
    "possible_model_reasoning": [
        "photo 1: silhouette is a generic quilted chain-strap flap shoulder bag, not a close match to the listed vintage Coach styles.",
        "photo 4: absence of a visible creed or serial substantially limits any Coach attribution; the bag is best treated as an unbranded modern fashion bag.",
        "photo 1: condition appears New or unused because protective plastic remains on the chain and strap; loose thread visible in photo 2 prevents assuming flawless manufacture.",
        "No Coach model fits: quilted chain-strap flap with eyelets and synthetic lining has no match in Classic glove-tanned catalog (City Bag, Willis, Court, Station, Dinky etc. are unlined glove-tanned with solid brass turnlock and leather strap)",
        "No hard identifiers: no creed patch, no COACH wordmark, no hangtag, no solid-brass vintage hardware seen in any of 6 photos",
        "Condition: New (NWOT) - plastic on chain, tissue stuffing, no wear visible; new unbranded quilted bag prices as generic fast-fashion, not Coach"
    ],
    "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: gold-tone circular strap rings and interwoven chain with red material; no visible Coach engraving. Hardware is partly covered in plastic.",
        "leather_description": "photo 1: smooth red quilted material with a glossy, padded appearance; genuine leather cannot be established from the photos and it appears synthetic or coated.",
        "lining_description": "photo 4: smooth burgundy lining is visible; no creed patch or brand label is visible.",
        "strap_construction": "photo 1: chain strap interwoven with red material, attached through gold-tone circular rings; protective plastic remains on the strap.",
        "stitching_description": "photos 1-6: visible red stitching follows the quilted diamond pattern and perimeter; some loose thread ends are visible near the lower edge in photo 2."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.001,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.91,
                "seller_misidentification_probability": 0.02,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: red quilted shoulder bag with chain-and-leather strap and no visible Coach wordmark, carriage, hangtag, or creed.",
                    "photo 2: gold-tone ring hardware and chain construction appear modern and decorative rather than vintage Coach brass hardware.",
                    "photo 4: visible interior is smooth burgundy synthetic-looking lining with no Coach creed patch or readable brand identifier.",
                    "photo 1: bag is wrapped in protective plastic and appears brand new, consistent with a modern unbranded fashion bag rather than vintage Coach.",
                    "photo 1: quilted flap-and-chain design is a generic designer-inspired silhouette and does not match the listed vintage Coach model catalog."
                ],
                "missing_information": [
                    "photo 4: the interior is only partially shown; request a fully emptied interior, all pockets, and every seam for any concealed label.",
                    "photo 4: request a close-up of the interior snap, zipper, and any fabric or leather brand tags.",
                    "photo 1: request close-ups of all hardware and the underside\/back of the flap, although no Coach identifier is currently visible.",
                    "photo 1: seller-stated dimensions and material composition are not provided."
                ],
                "authenticity_concerns": [
                    "photo 1: generic quilted construction and chain strap evoke a designer-inspired lookalike rather than a documented Coach design.",
                    "photo 4: no visible creed, serial\/style number, or Coach branding; the smooth lining and modern construction are inconsistent with classic vintage Coach indicators."
                ],
                "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: gold-tone circular strap rings and interwoven chain with red material; no visible Coach engraving. Hardware is partly covered in plastic.",
                    "leather_description": "photo 1: smooth red quilted material with a glossy, padded appearance; genuine leather cannot be established from the photos and it appears synthetic or coated.",
                    "lining_description": "photo 4: smooth burgundy lining is visible; no creed patch or brand label is visible.",
                    "strap_construction": "photo 1: chain strap interwoven with red material, attached through gold-tone circular rings; protective plastic remains on the strap.",
                    "stitching_description": "photos 1-6: visible red stitching follows the quilted diamond pattern and perimeter; some loose thread ends are visible near the lower edge in photo 2."
                },
                "possible_model_reasoning": [
                    "photo 1: silhouette is a generic quilted chain-strap flap shoulder bag, not a close match to the listed vintage Coach styles.",
                    "photo 4: absence of a visible creed or serial substantially limits any Coach attribution; the bag is best treated as an unbranded modern fashion bag.",
                    "photo 1: condition appears New or unused because protective plastic remains on the chain and strap; loose thread visible in photo 2 prevents assuming flawless manufacture."
                ],
                "confidence": 0.94,
                "recommended_max_bid": 8,
                "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": 25,
                "estimated_resale_low": 8,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of any interior leather creed patch or fabric brand tag straight-on in raking light (photo 4 shows interior but no patch visible)",
                    "photo of hardware engravings \/ zipper-pull stamps and Made-in line",
                    "material confirmation from seller (leather vs faux\/PU)"
                ],
                "negative_evidence": [
                    "photo 1-3,5-6: red diamond-quilted flap bag with chain-through-strap and rear slip pocket - silhouette matches modern fast-fashion Chanel-style flap, not any catalog Coach classic",
                    "photo 1-6: bright gold-tone plated chain, large eyelets and flap lock - lightweight plated look, not 1970s-1990s solid brass turnlock with oval back plate",
                    "photo 4: smooth dark-red synthetic-looking flap underside and interior, no leather creed patch visible on back wall",
                    "photo 1-3,5-6: high-sheen smooth quilted material with puffy fill, not matte glove-tanned cowhide with natural grain\/suede back",
                    "photo 1-2,5-6: chain still in plastic wrap and tissue stuffing, listed as Brand New Unbranded - new-in-wrap unbranded status is typical modern synthetic bag, not vintage Coach"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone plated hardware: interwoven chain-and-red-material shoulder strap through large round eyelets, flap push\/turn-style lock visible in photo 4; shiny plated appearance, not solid aged brass",
                    "leather_description": "red diamond-quilted smooth material with high sheen and padded loft, appears faux\/PU leather, not glove-tanned full-grain cowhide",
                    "lining_description": "dark red smooth synthetic-looking lining\/flap underside in photo 4; no creed patch or fabric tag legible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "red matching thread diamond quilting, even machine stitching; no Coach-style edge or stress-point details visible",
                    "strap_construction": "long chain interwoven with red material threaded through front eyelets, still in clear plastic wrap",
                    "turnlock_present": true
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: quilted chain-strap flap with eyelets and synthetic lining has no match in Classic glove-tanned catalog (City Bag, Willis, Court, Station, Dinky etc. are unlined glove-tanned with solid brass turnlock and leather strap)",
                    "No hard identifiers: no creed patch, no COACH wordmark, no hangtag, no solid-brass vintage hardware seen in any of 6 photos",
                    "Condition: New (NWOT) - plastic on chain, tissue stuffing, no wear visible; new unbranded quilted bag prices as generic fast-fashion, not Coach"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 27876,
            "output_tokens": 765,
            "total_tokens": 28641,
            "estimated_cost_usd": 0.012986
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 29256,
            "output_tokens": 1613,
            "total_tokens": 30869,
            "estimated_cost_usd": 0.007142
        }
    ]
}