Vintage Coach Hunter

{
    "is_handbag_probability": 0.88,
    "coach_probability": 0.03,
    "vintage_probability": 0.18,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.83,
    "seller_misidentification_probability": 0.08,
    "estimated_era": "modern (2000s+), non-Coach",
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather backpack\/purse form with multiple exterior zip pockets and adjustable shoulder straps",
        "photo 1: tan leather appearance and substantial stitched construction are compatible with a secondhand leather bag, but are not specifically Coach indicators"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, hangtag, creed patch, or Coach-specific logo",
        "photo 2: generic multi-pocket backpack construction and multiple dark zipper closures do not match a recognizable classic Coach handbag model",
        "photo 4: bottom view shows generic strap attachments and construction without a Coach identifier",
        "photo 5: rear view shows no brand marking or hangtag",
        "photo 6: close-up shows ordinary zipper hardware and generic stitching, with no legible Coach stamp"
    ],
    "missing_information": [
        "Interior view, including any sewn-in brand label or creed patch",
        "Close-up of every interior pocket and seam for a style\/serial tag",
        "Zipper-pull and hardware close-ups for possible maker markings",
        "Full front and back views with the bag opened and emptied",
        "Seller-stated material and any brand markings not visible in the supplied photos"
    ],
    "authenticity_concerns": [
        "No Coach identifiers are visible; the bag appears to be a generic leather backpack rather than a Coach catalog style",
        "The multi-pocket backpack silhouette, dark zipper hardware, and construction do not provide a credible match to the listed vintage Coach models"
    ],
    "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 dark zipper hardware and zipper teeth on several pockets; no maker engraving is legible. Buckle\/strap hardware is only partly visible.",
        "leather_description": "Tan or camel-colored leather-like material with visible wrinkling, creasing, and surface wear; exact leather type is not confirmed from photos.",
        "lining_description": "not_visible",
        "strap_construction": "Two long adjustable backpack straps with stitched reinforcement and visible wear; lower strap attachments and buckles are visible in photo 4.",
        "stitching_description": "Mostly even machine stitching with multiple stitched panels and reinforced strap seams; no distinctive Coach construction cue is visible."
    },
    "possible_model_reasoning": [
        "No Coach model is proposed because the visible silhouette is a generic multi-pocket backpack and no Coach identifier is shown.",
        "Condition: Good; visible creasing, scuffing, and surface wear on the body, pockets, and straps (photos 1, 2, 3, 5, and 6). Interior and odor\/mold status are unknown."
    ],
    "confidence": 0.78,
    "recommended_max_bid": 15,
    "estimated_resale_low": 15,
    "estimated_resale_high": 45,
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17712,
            "output_tokens": 769,
            "total_tokens": 18481,
            "estimated_cost_usd": 0.00893
        }
    ]
}