Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.01,
    "vintage_probability": 0.04,
    "authenticity_confidence": 0.01,
    "image_quality_score": 0.94,
    "seller_misidentification_probability": 0.98,
    "estimated_era": "modern (2000s+), non-Coach",
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: exterior has a brown Damier checkerboard canvas pattern and Louis Vuitton-style leather trim, not Coach Signature C canvas or vintage Coach glove-tanned leather",
        "photo 2: interior leather tab visibly reads LOUIS VUITTON PARIS",
        "photo 3: interior lining visibly carries a large LOUIS VUITTON \/ ARTICLES DE VOYAGE label",
        "photo 6: visible code reads MS3128, not a Coach creed serial format",
        "photo 7: visible label reads LOUIS VUITTON PARIS Made in France"
    ],
    "missing_information": [
        "photo 1: bottom, corners, and full strap condition are not shown",
        "photo 2: interior has visible staining or discoloration near the base; extent is not fully documented",
        "photo 6: the date-code authenticity and provenance cannot be independently verified from these photos"
    ],
    "authenticity_concerns": [
        "photo 2: the bag is clearly branded Louis Vuitton rather than Coach, so it should not be represented or priced as a Coach bag",
        "photo 6: visible MS3128 code and Louis Vuitton markings require separate Louis Vuitton authentication; photos alone do not establish authenticity"
    ],
    "observed_features": {
        "creed_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number_present": true,
        "serial_or_style_number": "MS3128",
        "coach_wordmark_present": false,
        "turnlock_present": false,
        "hangtag_present": false,
        "hardware_description": "photo 1: gold-tone side hardware and clips are visible; no Coach turnlock is present",
        "leather_description": "photo 1: brown coated checkerboard canvas with dark brown leather trim and handles",
        "lining_description": "photo 2: red textile lining with dark vertical stripes and Louis Vuitton branding",
        "strap_construction": "photo 1: long dark-brown leather shoulder handles; photo 2: interior leather strap with gold-tone clip",
        "stitching_description": "photos 1, 4 and 5: visible dark stitching is generally even, though some loose or irregular threads appear near seams"
    },
    "possible_model_reasoning": [],
    "confidence": 0.96,
    "recommended_max_bid": null,
    "estimated_resale_low": null,
    "estimated_resale_high": null,
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 25873,
            "output_tokens": 760,
            "total_tokens": 26633,
            "estimated_cost_usd": 0.012173
        }
    ]
}