Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.03,
    "vintage_probability": 0.165,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.83,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.88,
    "recommended_max_bid": 11,
    "estimated_resale_low": 10,
    "estimated_resale_high": 32.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1-4: leather handbag with brass-tone hardware in brown tone similar to Coach British Tan family",
        "photo 5-6: unlined suede-back interior superficially similar to unlined vintage glove-tanned bags"
    ],
    "negative_evidence": [
        "photo 1: Brown leather crossbody handbag is clearly visible, but its buckle-front messenger construction does not closely match the listed vintage Coach catalog silhouettes.",
        "photo 1: The hardware is predominantly small buckles, rivets, and snaps rather than a Coach turnlock or characteristic vintage Coach closure.",
        "photo 2: The ruler indicates an approximately 9\u201310 inch wide bag, but there is no visible Coach branding or characteristic Coach identifier.",
        "photo 3: The back is plain and lacks a Coach wordmark, horse-and-carriage, hangtag, or creed patch.",
        "photo 6: The interior shows a suede-like flap backing and a fabric or suede-like compartment lining, with no visible Coach creed or style tag.",
        "photo 1: The leather has a highly glossy, heavily wrinkled finish and the construction appears handmade or generic rather than typical smooth glove-tanned vintage Coach construction.",
        "photo 7: The zipper and interior construction are generic-looking and no Coach marking is visible.",
        "photo 1,2: double vertical buckle-strap flap closure, not Coach turnlock geometry - no turnlock present",
        "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 5: magnetic snap closures and exposed rivets\/eyelets - not used on vintage Coach classics",
        "photo 5,6: construction with raw suede-like interior and inset zip pocket does not match Coach classic interior layout with creed on back wall\/slip pocket",
        "photo 1-4: silhouette ~8in wide satchel with dual buckles does not match any catalog Coach style 1970s-2000s"
    ],
    "missing_information": [
        "photo 6-7: No straight-on, close-up view of every interior wall or pocket seam; a hidden label or stamp cannot be fully excluded.",
        "photo 1: No close-up of the buckle backs, snaps, or zipper pull for maker markings.",
        "photo 3-5: No detailed close-ups of all strap attachment points and bottom corners.",
        "Seller-stated country of manufacture, materials, and dimensions are absent.",
        "no creed patch visible in any photo - request straight-on interior back-wall photo to confirm absence",
        "no hangtag or wordmark close-up, but none visible in overview shots",
        "no hardware brand stamps shown - request zipper pull and buckle backs"
    ],
    "authenticity_concerns": [
        "photo 1: The bag lacks all visible Coach identifiers while using a generic vintage-style leather messenger design.",
        "photo 1: The multiple front buckles and riveted strap tabs are not a recognized Coach classic feature set and are more consistent with a lookalike or handmade bag.",
        "photo 6: Visible generic lining and zipper construction provide no support for Coach manufacture."
    ],
    "possible_model_reasoning": [
        "No listed Coach model is a close match: the front buckle-and-rivet arrangement, plain reverse, and generic messenger silhouette do not correspond clearly to City Bag, Court, Willis, Station, Stewardess, or Dinky styles.",
        "Condition: Good; the leather shows extensive wrinkling and surface creasing, with no obvious major tears or broken hardware visible, but the interior and strap condition are only partially documented.",
        "No Coach model fits: dual-buckle satchel with magnetic snaps and no turnlock is not City Bag, Willis, Court, Station, Dinky or other classic; no creed\/serial to decode; hardware and closure inconsistent with Coach catalog",
        "Condition: Good to Very Good; surface wrinkling\/creasing and light scuffs (photo 3-4), strap intact, no corner blowouts shown, interior not fully emptied so grade capped"
    ],
    "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": "Small brass-tone buckles, rivets, snaps, strap rings, and a generic zipper are visible; no Coach engraving is visible.",
        "leather_description": "Brown leather with a glossy finish, substantial wrinkling and pronounced creasing; exact leather type is not determinable from photos.",
        "lining_description": "Interior appears suede-like or fabric-lined in light beige, with a brown leather zip pocket; exact material is not determinable.",
        "strap_construction": "Long adjustable-looking leather shoulder strap with contrasting light underside and metal attachment hardware; stitching and edge construction are visible.",
        "stitching_description": "Visible tan stitching is generally even around the perimeter and straps, though the construction appears generic and some edges show exposed or unfinished-looking layers."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0011,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.91,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: Brown leather crossbody handbag is clearly visible, but its buckle-front messenger construction does not closely match the listed vintage Coach catalog silhouettes.",
                    "photo 1: The hardware is predominantly small buckles, rivets, and snaps rather than a Coach turnlock or characteristic vintage Coach closure.",
                    "photo 2: The ruler indicates an approximately 9\u201310 inch wide bag, but there is no visible Coach branding or characteristic Coach identifier.",
                    "photo 3: The back is plain and lacks a Coach wordmark, horse-and-carriage, hangtag, or creed patch.",
                    "photo 6: The interior shows a suede-like flap backing and a fabric or suede-like compartment lining, with no visible Coach creed or style tag.",
                    "photo 1: The leather has a highly glossy, heavily wrinkled finish and the construction appears handmade or generic rather than typical smooth glove-tanned vintage Coach construction.",
                    "photo 7: The zipper and interior construction are generic-looking and no Coach marking is visible."
                ],
                "missing_information": [
                    "photo 6-7: No straight-on, close-up view of every interior wall or pocket seam; a hidden label or stamp cannot be fully excluded.",
                    "photo 1: No close-up of the buckle backs, snaps, or zipper pull for maker markings.",
                    "photo 3-5: No detailed close-ups of all strap attachment points and bottom corners.",
                    "Seller-stated country of manufacture, materials, and dimensions are absent."
                ],
                "authenticity_concerns": [
                    "photo 1: The bag lacks all visible Coach identifiers while using a generic vintage-style leather messenger design.",
                    "photo 1: The multiple front buckles and riveted strap tabs are not a recognized Coach classic feature set and are more consistent with a lookalike or handmade bag.",
                    "photo 6: Visible generic lining and zipper construction provide no 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": "Small brass-tone buckles, rivets, snaps, strap rings, and a generic zipper are visible; no Coach engraving is visible.",
                    "leather_description": "Brown leather with a glossy finish, substantial wrinkling and pronounced creasing; exact leather type is not determinable from photos.",
                    "lining_description": "Interior appears suede-like or fabric-lined in light beige, with a brown leather zip pocket; exact material is not determinable.",
                    "strap_construction": "Long adjustable-looking leather shoulder strap with contrasting light underside and metal attachment hardware; stitching and edge construction are visible.",
                    "stitching_description": "Visible tan stitching is generally even around the perimeter and straps, though the construction appears generic and some edges show exposed or unfinished-looking layers."
                },
                "possible_model_reasoning": [
                    "No listed Coach model is a close match: the front buckle-and-rivet arrangement, plain reverse, and generic messenger silhouette do not correspond clearly to City Bag, Court, Willis, Station, Stewardess, or Dinky styles.",
                    "Condition: Good; the leather shows extensive wrinkling and surface creasing, with no obvious major tears or broken hardware visible, but the interior and strap condition are only partially documented."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "no creed patch visible in any photo - request straight-on interior back-wall photo to confirm absence",
                    "no hangtag or wordmark close-up, but none visible in overview shots",
                    "no hardware brand stamps shown - request zipper pull and buckle backs"
                ],
                "negative_evidence": [
                    "photo 1,2: double vertical buckle-strap flap closure, not Coach turnlock geometry - no turnlock present",
                    "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 5: magnetic snap closures and exposed rivets\/eyelets - not used on vintage Coach classics",
                    "photo 5,6: construction with raw suede-like interior and inset zip pocket does not match Coach classic interior layout with creed on back wall\/slip pocket",
                    "photo 1-4: silhouette ~8in wide satchel with dual buckles does not match any catalog Coach style 1970s-2000s"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone buckles, eyelets, dome rivets and magnetic snaps; small coil-zip with ring pull; no turnlock, no COACH stamping visible",
                    "leather_description": "medium brown wrinkled\/crinkled leather with sheen, raw suede back visible at edges and strap underside",
                    "lining_description": "unlined with light-tan suede flesh side showing; front-wall zip pocket under flap visible in photo 5-6",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "contrast tan\/golden machine stitching around flap, body and straps, even but not Coach-matched thread",
                    "strap_construction": "single long adjustable crossbody strap with buckle adjustment, riveted to body sides, suede back exposed",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-4: leather handbag with brass-tone hardware in brown tone similar to Coach British Tan family",
                    "photo 5-6: unlined suede-back interior superficially similar to unlined vintage glove-tanned bags"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: dual-buckle satchel with magnetic snaps and no turnlock is not City Bag, Willis, Court, Station, Dinky or other classic; no creed\/serial to decode; hardware and closure inconsistent with Coach catalog",
                    "Condition: Good to Very Good; surface wrinkling\/creasing and light scuffs (photo 3-4), strap intact, no corner blowouts shown, interior not fully emptied so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.15
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 33096,
            "output_tokens": 839,
            "total_tokens": 33935,
            "estimated_cost_usd": 0.015252
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 35567,
            "output_tokens": 1127,
            "total_tokens": 36694,
            "estimated_cost_usd": 0.008015
        }
    ]
}