Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.78,
    "seller_misidentification_probability": 0.08,
    "estimated_era": "modern (2000s+), non-Coach",
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The bag is a structured hair-on cowhide handbag with a silver-tone rectangular clasp, unlike the smooth glove-tanned leather and brass hardware typical of vintage Coach classics.",
        "photo 2: The reverse shows no visible Coach wordmark, creed patch, hangtag, or horse-and-carriage identifier.",
        "photo 3: The spotted hair-on hide and silver-tone hardware are inconsistent with the usual construction of vintage Coach leather handbags.",
        "photo 4: The long detachable strap and generic clasp construction are visible, but no Coach-specific branding is present.",
        "photo 5: Duplicate front view still shows no visible Coach identifier; the listing title only says genuine cowhide and does not claim Coach."
    ],
    "missing_information": [
        "Interior and lining view, including any sewn-in brand label or creed patch.",
        "Close-up photographs of the clasp, zipper hardware, strap attachments, and stitching.",
        "Bottom, side, and corner photographs to assess construction and condition.",
        "Seller-stated dimensions and any country-of-origin or maker markings."
    ],
    "authenticity_concerns": [
        "The silhouette and clasp appear Birkin-inspired or generic rather than a recognizable Coach model.",
        "Silver-tone hardware and hair-on cowhide do not fit the classic vintage Coach construction shown in the photos.",
        "No Coach identifiers are visible; the absence of a creed cannot be confirmed because the interior is not shown."
    ],
    "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": true,
        "hangtag_present": false,
        "hardware_description": "Photo 1: silver-tone rectangular front clasp with a small turning\/locking mechanism; no Coach engraving is visible. Photo 4: silver-tone strap clips are visible.",
        "leather_description": "Photos 1-5: hair-on cowhide or cowhide-effect exterior, shown in black and spotted white\/brown color variants; smooth conventional Coach glove-tanned leather is not visible.",
        "lining_description": "not_visible",
        "strap_construction": "Photo 4: narrow detachable shoulder strap attached with metal clips; detailed strap construction and condition are not fully visible.",
        "stitching_description": "Photos 1-4: visible exterior stitching appears generally even, but resolution and lack of close-ups prevent a detailed construction assessment."
    },
    "possible_model_reasoning": [],
    "confidence": 0.85,
    "recommended_max_bid": 10,
    "estimated_resale_low": 15,
    "estimated_resale_high": 50,
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17794,
            "output_tokens": 762,
            "total_tokens": 18556,
            "estimated_cost_usd": 0.008946
        }
    ]
}