Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.78,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.875,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: the bag has a generic rectangular crossbody silhouette with two zippered compartments and tassel pulls, not a clearly recognizable vintage Coach model.",
        "photo 1: hardware appears bright gold-tone and plated rather than the substantial, aged solid brass typically seen on vintage Coach classics.",
        "photo 4: interior shows a black-and-white striped synthetic-looking fabric lining, inconsistent with classic unlined glove-tanned Coach construction.",
        "photo 1: seller describes the bag as lightweight; this is counter-evidence for a vintage Coach leather classic.",
        "photo 6: no visible Coach wordmark, horse-and-carriage mark, hangtag, or creed patch is present.",
        "photo 4: black-and-white striped polyester lining, never used on vintage glove-tanned Coach classics which are unlined",
        "photo 1, photo 2, photo 6: thin uniform faux-leather grain with sheen, not full-grain glove-tanned cowhide",
        "photo 1, photo 5, photo 6: bright gold-tone plated zippers and tassel pulls, not solid brass vintage hardware",
        "photo 1, photo 2, photo 5, photo 6: no turnlock, no leather hangtag, no COACH wordmark or carriage visible",
        "photo 4: interior zip pocket with small blank rectangular label, no stamped leather creed patch on back wall",
        "photo 3: thin flat profile and lightweight construction, seller describes as lightweight"
    ],
    "missing_information": [
        "photo 4: the small interior label or any label inside the compartments is not shown clearly enough to identify a maker.",
        "photo 1: zipper-pull and hardware markings are not shown in close-up.",
        "photo 2: exact material cannot be confirmed from photos; request a close-up of the edges, surface, and underside.",
        "No creed patch visible in interior overview (photo 4) - close-up would confirm absence but is not needed to rule out vintage Coach"
    ],
    "authenticity_concerns": [
        "photo 4: striped fabric lining and the lightweight, fashion-bag construction do not fit a typical vintage Coach classic.",
        "photo 1: the bright gold-tone hardware, tassel zipper pulls, and generic construction are consistent with an unbranded or lookalike bag rather than Coach.",
        "photo 6: absence of any visible Coach identifier substantially limits support for Coach manufacture."
    ],
    "possible_model_reasoning": [
        "The bag is clearly a handbag, but its rectangular zip-top crossbody shape, tassel pulls, striped lining, and bright hardware do not closely match the listed classic vintage Coach models.",
        "No creed, style number, wordmark, or Coach hangtag is visible, so there is no photo-based model or era identifier.",
        "Condition: Very Good based on the clean exterior and apparently intact structure in photos 1-6; interior and hardware condition are only partially documented.",
        "Modern fast-fashion zip-top crossbody with front zip pocket and tassels does not match any vintage Coach catalog silhouette, closure or construction",
        "No creed, no serial, no wordmark, no turnlock, no hangtag in 6 photos including interior views (photo 4, photo 5)",
        "Polyester striped lining plus plated hardware plus synthetic-looking leather is inconsistent with 1970s-1990s unlined glove-tanned solid-brass Coach",
        "Condition: Very Good to Excellent as modern used bag; clean exterior (photo 1, photo 6), clean lining (photo 4), no visible corner wear"
    ],
    "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 hardware, strap rings, and buckle visible in photos 1-3 and 6; no Coach engraving is visible.",
        "leather_description": "Burgundy smooth-to-finely-pebbled material with a uniform finish; photos do not establish that it is genuine leather.",
        "lining_description": "Black-and-white striped fabric lining visible in photo 4 and the lower compartment in photo 5; likely synthetic-looking, exact fiber not confirmed.",
        "strap_construction": "Thin adjustable shoulder strap with stitched tabs, gold-tone buckle, and ring attachments visible in photos 1-3.",
        "stitching_description": "Visible machine stitching appears generally even along the body, zipper panels, and strap; no distinctive Coach construction is apparent."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0011,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: the bag has a generic rectangular crossbody silhouette with two zippered compartments and tassel pulls, not a clearly recognizable vintage Coach model.",
                    "photo 1: hardware appears bright gold-tone and plated rather than the substantial, aged solid brass typically seen on vintage Coach classics.",
                    "photo 4: interior shows a black-and-white striped synthetic-looking fabric lining, inconsistent with classic unlined glove-tanned Coach construction.",
                    "photo 1: seller describes the bag as lightweight; this is counter-evidence for a vintage Coach leather classic.",
                    "photo 6: no visible Coach wordmark, horse-and-carriage mark, hangtag, or creed patch is present."
                ],
                "missing_information": [
                    "photo 4: the small interior label or any label inside the compartments is not shown clearly enough to identify a maker.",
                    "photo 1: zipper-pull and hardware markings are not shown in close-up.",
                    "photo 2: exact material cannot be confirmed from photos; request a close-up of the edges, surface, and underside."
                ],
                "authenticity_concerns": [
                    "photo 4: striped fabric lining and the lightweight, fashion-bag construction do not fit a typical vintage Coach classic.",
                    "photo 1: the bright gold-tone hardware, tassel zipper pulls, and generic construction are consistent with an unbranded or lookalike bag rather than Coach.",
                    "photo 6: absence of any visible Coach identifier substantially limits support for Coach manufacture."
                ],
                "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 hardware, strap rings, and buckle visible in photos 1-3 and 6; no Coach engraving is visible.",
                    "leather_description": "Burgundy smooth-to-finely-pebbled material with a uniform finish; photos do not establish that it is genuine leather.",
                    "lining_description": "Black-and-white striped fabric lining visible in photo 4 and the lower compartment in photo 5; likely synthetic-looking, exact fiber not confirmed.",
                    "strap_construction": "Thin adjustable shoulder strap with stitched tabs, gold-tone buckle, and ring attachments visible in photos 1-3.",
                    "stitching_description": "Visible machine stitching appears generally even along the body, zipper panels, and strap; no distinctive Coach construction is apparent."
                },
                "possible_model_reasoning": [
                    "The bag is clearly a handbag, but its rectangular zip-top crossbody shape, tassel pulls, striped lining, and bright hardware do not closely match the listed classic vintage Coach models.",
                    "No creed, style number, wordmark, or Coach hangtag is visible, so there is no photo-based model or era identifier.",
                    "Condition: Very Good based on the clean exterior and apparently intact structure in photos 1-6; interior and hardware condition are only partially documented."
                ],
                "confidence": 0.9,
                "recommended_max_bid": 15,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "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": 25,
                "estimated_resale_low": 5,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "No creed patch visible in interior overview (photo 4) - close-up would confirm absence but is not needed to rule out vintage Coach"
                ],
                "negative_evidence": [
                    "photo 4: black-and-white striped polyester lining, never used on vintage glove-tanned Coach classics which are unlined",
                    "photo 1, photo 2, photo 6: thin uniform faux-leather grain with sheen, not full-grain glove-tanned cowhide",
                    "photo 1, photo 5, photo 6: bright gold-tone plated zippers and tassel pulls, not solid brass vintage hardware",
                    "photo 1, photo 2, photo 5, photo 6: no turnlock, no leather hangtag, no COACH wordmark or carriage visible",
                    "photo 4: interior zip pocket with small blank rectangular label, no stamped leather creed patch on back wall",
                    "photo 3: thin flat profile and lightweight construction, seller describes as lightweight"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone plated zippers; front zip with dual tassel pulls, top zip closure, small back zip with circular pull; thin buckle on adjustable strap",
                    "leather_description": "smooth deep burgundy pebbled-look material with uniform grain and slight sheen, appears synthetic faux leather, not glove-tanned cowhide",
                    "lining_description": "black-and-white thin striped polyester fabric in main compartment and front pocket, with interior zip pocket",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even machine stitching tone-matched around edges and zip openings",
                    "strap_construction": "thin flat adjustable crossbody strap with metal buckle and swivel clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Modern fast-fashion zip-top crossbody with front zip pocket and tassels does not match any vintage Coach catalog silhouette, closure or construction",
                    "No creed, no serial, no wordmark, no turnlock, no hangtag in 6 photos including interior views (photo 4, photo 5)",
                    "Polyester striped lining plus plated hardware plus synthetic-looking leather is inconsistent with 1970s-1990s unlined glove-tanned solid-brass Coach",
                    "Condition: Very Good to Excellent as modern used bag; clean exterior (photo 1, photo 6), clean lining (photo 4), no visible corner wear"
                ],
                "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": 18148,
            "output_tokens": 789,
            "total_tokens": 18937,
            "estimated_cost_usd": 0.009153
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18702,
            "output_tokens": 1375,
            "total_tokens": 20077,
            "estimated_cost_usd": 0.00484
        }
    ]
}