Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.04,
    "vintage_probability": 0.08,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.82,
    "seller_misidentification_probability": 0.05,
    "estimated_era": "modern (2000s+), non-Coach",
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a leather tote\/shoulder bag with two long shoulder straps and a structured open-top body.",
        "photo 1: Brown leather and matching-tone stitching are visible."
    ],
    "negative_evidence": [
        "photo 1: No visible Coach wordmark, horse-and-carriage, creed patch, serial\/style number, or hangtag.",
        "photo 1: The large plain tote silhouette and simple stitched strap tabs do not closely match a recognizable vintage Coach catalog model.",
        "photo 2: No Coach identifier is visible on the exterior or straps.",
        "photo 3: Plain exterior without Coach branding or distinctive Coach hardware.",
        "photo 5: The bag appears to use decorative\/functional leather strap tabs rather than a vintage Coach turnlock or other recognizable Coach closure."
    ],
    "missing_information": [
        "Straight-on interior photograph, including all pockets and seams, to check for a creed or fabric label.",
        "Close-up photographs of every interior wall, zipper, hardware, and strap attachment.",
        "Bottom, corners, and strap-fold photographs for condition assessment.",
        "Seller-stated dimensions and any country-of-origin or maker markings."
    ],
    "authenticity_concerns": [
        "The bag is most consistent with an unbranded or generic handmade leather tote rather than a Coach product.",
        "No Coach identifier is visible in the provided photographs; silhouette alone is not sufficient for Coach attribution."
    ],
    "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": "not_visible",
        "leather_description": "Brown smooth-to-slightly distressed leather with visible tonal variation and creasing; exact leather type is not verifiable from photos.",
        "lining_description": "not_visible",
        "strap_construction": "Two long, narrow leather shoulder straps, stitched to the upper front\/back panels with rectangular tabs and reinforcement stitching.",
        "stitching_description": "Visible topstitched seams appear generally straight and even, with contrasting light-brown thread; construction appears simple and handmade."
    },
    "possible_model_reasoning": [
        "No Coach model is proposed because the bag lacks a visible Coach identifier and does not closely match a documented vintage Coach silhouette.",
        "Condition: approximately Good to Very Good based on visible creasing, surface variation, and apparent wear; interior, bottom, and strap-fold condition are not shown."
    ],
    "confidence": 0.78,
    "recommended_max_bid": 15,
    "estimated_resale_low": 15,
    "estimated_resale_high": 50,
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18694,
            "output_tokens": 706,
            "total_tokens": 19400,
            "estimated_cost_usd": 0.009172
        }
    ]
}