Vintage Coach Hunter

{
    "is_handbag_probability": 0.92,
    "coach_probability": 0.03,
    "vintage_probability": 0.095,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.765,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.805,
    "recommended_max_bid": 8,
    "estimated_resale_low": 9,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a usable waist bag\/fanny pack with multiple zippered compartments.",
        "photo 1: Brown leather-like exterior is visible, but no Coach branding or distinctive Coach construction is apparent."
    ],
    "negative_evidence": [
        "photo 1: The bag has a modern multi-pocket utility silhouette, black nylon webbing belt, plastic adjuster, and silver-tone zipper hardware rather than a recognizable vintage Coach design.",
        "photo 1: No COACH wordmark, horse-and-carriage mark, hangtag, creed patch, or turnlock is visible.",
        "photo 2: Interior appears fabric-lined and contains no visible creed, brand label, or style tag.",
        "photo 3: Back construction and hardware are generic; no Coach identifier is visible.",
        "photo 1: multi-pocket fanny-pack silhouette with 5+ zip compartments not matching any vintage Coach catalog style",
        "photo 1, photo 3: silver-tone base-metal zipper pulls and black plastic side-release buckle and slider, not solid brass vintage Coach hardware",
        "photo 2: brown synthetic fabric lining, not unlined suede-back glove-tanned interior of vintage Coach classics",
        "photo 1, photo 3: nylon webbing waist strap with plastic hardware, not leather strap with brass buckle\/dogleash construction",
        "photo 1, photo 2, photo 3: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible"
    ],
    "missing_information": [
        "photo 2: A closer, fully illuminated image of every interior wall and pocket seam could confirm whether a small label or creed is present.",
        "photo 1: Close-ups of all zipper pulls, hardware, and exterior patches would help rule out a hidden brand marking.",
        "photo 3: Seller-stated dimensions, material composition, and country-of-origin label are not provided.",
        "photo of any interior leather creed patch or brand stamp straight-on in raking light",
        "photo of zipper-pull brand stamps and hardware engravings",
        "photo of any hangtag both faces"
    ],
    "authenticity_concerns": [
        "photo 1: The generic utility design, nylon webbing strap, plastic buckle, and silver-tone hardware are inconsistent with common vintage Coach leather handbag construction.",
        "photo 2: The lined multi-compartment interior does not resemble the unlined glove-tanned construction of many classic vintage Coach styles.",
        "photo 1: The apparent pale backing visible at an exterior edge may indicate bonded or synthetic material, although the material cannot be confirmed from these photos."
    ],
    "possible_model_reasoning": [
        "No plausible Coach model match: the waist-pack silhouette and numerous zippered compartments are generic and do not match the listed classic Coach handbag shapes.",
        "Era assessment is based on visible nylon webbing, plastic buckle, fabric lining, and silver-tone zipper hardware; no dated Coach identifier is visible.",
        "Condition appears Good to Very Good from the shown exterior, with no major tears or broken hardware visible; interior condition, odor, and bottom wear are not fully established.",
        "No Coach model fits: fanny-pack form with nylon strap, plastic buckle, silver zippers and fabric lining is inconsistent with 1970s-1990s glove-tanned brass-hardware Coach construction",
        "No hard identifiers visible in any photo to decode era or style",
        "Condition: Good to Very Good; leather intact with light wear, zippers appear working (photo 1, photo 3), interior appears clean (photo 2), full grading 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": "Visible silver-tone zipper pulls, dark plastic or coated adjuster hardware, and black nylon webbing strap; no Coach engraving is visible.",
        "leather_description": "Dark brown smooth leather-like or coated material; exact composition is not determinable from the photos.",
        "lining_description": "Dark fabric lining is visible in photo 2; no label or creed is visible.",
        "strap_construction": "Wide black nylon webbing waist strap with plastic adjustment buckle and side-release-style hardware.",
        "stitching_description": "Visible machine stitching appears generally even on the exterior, with no distinctive Coach construction evident."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0028,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.94,
                "coach_probability": 0.03,
                "vintage_probability": 0.04,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a usable waist bag\/fanny pack with multiple zippered compartments.",
                    "photo 1: Brown leather-like exterior is visible, but no Coach branding or distinctive Coach construction is apparent."
                ],
                "negative_evidence": [
                    "photo 1: The bag has a modern multi-pocket utility silhouette, black nylon webbing belt, plastic adjuster, and silver-tone zipper hardware rather than a recognizable vintage Coach design.",
                    "photo 1: No COACH wordmark, horse-and-carriage mark, hangtag, creed patch, or turnlock is visible.",
                    "photo 2: Interior appears fabric-lined and contains no visible creed, brand label, or style tag.",
                    "photo 3: Back construction and hardware are generic; no Coach identifier is visible."
                ],
                "missing_information": [
                    "photo 2: A closer, fully illuminated image of every interior wall and pocket seam could confirm whether a small label or creed is present.",
                    "photo 1: Close-ups of all zipper pulls, hardware, and exterior patches would help rule out a hidden brand marking.",
                    "photo 3: Seller-stated dimensions, material composition, and country-of-origin label are not provided."
                ],
                "authenticity_concerns": [
                    "photo 1: The generic utility design, nylon webbing strap, plastic buckle, and silver-tone hardware are inconsistent with common vintage Coach leather handbag construction.",
                    "photo 2: The lined multi-compartment interior does not resemble the unlined glove-tanned construction of many classic vintage Coach styles.",
                    "photo 1: The apparent pale backing visible at an exterior edge may indicate bonded or synthetic material, although the material cannot be confirmed from these photos."
                ],
                "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": "Visible silver-tone zipper pulls, dark plastic or coated adjuster hardware, and black nylon webbing strap; no Coach engraving is visible.",
                    "leather_description": "Dark brown smooth leather-like or coated material; exact composition is not determinable from the photos.",
                    "lining_description": "Dark fabric lining is visible in photo 2; no label or creed is visible.",
                    "strap_construction": "Wide black nylon webbing waist strap with plastic adjustment buckle and side-release-style hardware.",
                    "stitching_description": "Visible machine stitching appears generally even on the exterior, with no distinctive Coach construction evident."
                },
                "possible_model_reasoning": [
                    "No plausible Coach model match: the waist-pack silhouette and numerous zippered compartments are generic and do not match the listed classic Coach handbag shapes.",
                    "Era assessment is based on visible nylon webbing, plastic buckle, fabric lining, and silver-tone zipper hardware; no dated Coach identifier is visible.",
                    "Condition appears Good to Very Good from the shown exterior, with no major tears or broken hardware visible; interior condition, odor, and bottom wear are not fully established."
                ],
                "confidence": 0.86,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.75,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 8,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.9,
                "missing_information": [
                    "photo of any interior leather creed patch or brand stamp straight-on in raking light",
                    "photo of zipper-pull brand stamps and hardware engravings",
                    "photo of any hangtag both faces"
                ],
                "negative_evidence": [
                    "photo 1: multi-pocket fanny-pack silhouette with 5+ zip compartments not matching any vintage Coach catalog style",
                    "photo 1, photo 3: silver-tone base-metal zipper pulls and black plastic side-release buckle and slider, not solid brass vintage Coach hardware",
                    "photo 2: brown synthetic fabric lining, not unlined suede-back glove-tanned interior of vintage Coach classics",
                    "photo 1, photo 3: nylon webbing waist strap with plastic hardware, not leather strap with brass buckle\/dogleash construction",
                    "photo 1, photo 2, photo 3: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone metal zipper pulls, black plastic side-release buckle and rectangular slider on waist strap; no brass turnlock, no COACH stamping visible",
                    "leather_description": "dark brown smooth leather-look with light grain, slight sheen; photo 1 front multi-pocket construction",
                    "lining_description": "photo 2: brown fabric lining inside main compartment, light blue-gray binding at zip tape",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light contrast topstitching around pockets and panels, even but not matched to leather",
                    "strap_construction": "dark brown nylon webbing waist\/belt strap with plastic buckle and adjustment slider, sewn to leather body",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: fanny-pack form with nylon strap, plastic buckle, silver zippers and fabric lining is inconsistent with 1970s-1990s glove-tanned brass-hardware Coach construction",
                    "No hard identifiers visible in any photo to decode era or style",
                    "Condition: Good to Very Good; leather intact with light wear, zippers appear working (photo 1, photo 3), interior appears clean (photo 2), full grading capped by limited views"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.15
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 20859,
            "output_tokens": 868,
            "total_tokens": 21727,
            "estimated_cost_usd": 0.010427
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 21458,
            "output_tokens": 1035,
            "total_tokens": 22493,
            "estimated_cost_usd": 0.00512
        }
    ]
}