Vintage Coach Hunter

{
    "is_handbag_probability": 0.9,
    "coach_probability": 0.01,
    "vintage_probability": 0.01,
    "authenticity_confidence": 0.01,
    "image_quality_score": 0.86,
    "seller_misidentification_probability": 0.02,
    "estimated_era": "modern (2000s+), non-Coach",
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: backpack silhouette with padded shoulder straps, not a vintage Coach handbag",
        "photo 1: white textile\/canvas-like exterior with a large cartoon ghost face graphic",
        "photo 2: lifestyle view confirms backpack construction and black backpack straps",
        "photo 1: no Coach wordmark, horse-and-carriage, creed patch, or recognizable Coach hardware visible",
        "photo 2: no Coach branding or vintage leather construction visible"
    ],
    "missing_information": [
        "photo 1-2: interior, labels, fabric tags, zipper pulls, and back construction are not shown, though these are unlikely to change the clear non-Coach assessment"
    ],
    "authenticity_concerns": [
        "photo 1: textile backpack and novelty graphic are inconsistent with the vintage leather handbag population; likely an unbranded novelty school bag rather than a Coach product"
    ],
    "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": "photo 1: black zipper hardware and black adjustable backpack straps are visible; no Coach-specific hardware visible",
        "leather_description": "photo 1: appears to be white canvas or synthetic textile, not glove-tanned leather",
        "lining_description": "not_visible",
        "strap_construction": "photo 1-2: two black adjustable backpack shoulder straps; top carry loop visible",
        "stitching_description": "photo 1-2: visible perimeter piping and machine-sewn construction; detailed stitch quality not assessable"
    },
    "possible_model_reasoning": [],
    "confidence": 0.97,
    "recommended_max_bid": 5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 20,
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16149,
            "output_tokens": 446,
            "total_tokens": 16595,
            "estimated_cost_usd": 0.00753
        }
    ]
}