Vintage Coach Hunter

{
    "is_handbag_probability": 0.97,
    "coach_probability": 0.06,
    "vintage_probability": 0.28,
    "authenticity_confidence": 0.08,
    "image_quality_score": 0.88,
    "seller_misidentification_probability": 0.91,
    "estimated_era": "modern (2000s+), non-Coach",
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a leather crossbody messenger bag with a substantial, vintage-style leather construction.",
        "photo 3: Natural-looking brown leather and a textile lining are visible."
    ],
    "negative_evidence": [
        "photo 1: No visible Coach wordmark, horse-and-carriage, hangtag, or recognizable Coach turnlock.",
        "photo 2: The closure appears to use plain snap hardware rather than a classic Coach turnlock.",
        "photo 3: The visible green textile lining and large laptop-messenger silhouette do not match the typical unlined glove-tanned Coach classic styles.",
        "photo 4: Hardware appears dark\/black-toned and generic rather than the solid brass hardware common to vintage Coach classics.",
        "photo 1: The bag lacks a visible Coach creed patch or other brand identifier despite multiple open views."
    ],
    "missing_information": [
        "Straight-on interior photos of every interior wall and pocket, especially any leather creed patch or fabric label.",
        "Close-up photos of all hardware, snaps, buckles, and strap attachments.",
        "Close-up photos of the bottom, corners, seams, and any maker stamp.",
        "Seller-stated material details, dimensions, and approximate date of purchase."
    ],
    "authenticity_concerns": [
        "The overall construction is consistent with an unbranded leather messenger bag or handmade\/vintage-inspired lookalike, not a documented Coach model.",
        "No Coach identifier is visible in the supplied photos; silhouette alone is insufficient 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": "photo 1: Plain dark-toned buckles, snaps, and strap hardware are visible; no Coach engraving is legible.",
        "leather_description": "photo 1: Brown, smooth-to-matte leather with visible tonal variation and patina-like shading; exact tannage is not determinable.",
        "lining_description": "photo 3: Green textile lining is clearly visible; material type and condition are not fully determinable.",
        "strap_construction": "photos 1 and 5: Wide adjustable leather shoulder strap with stitched edges, buckle adjustment, and riveted\/fastened attachments.",
        "stitching_description": "photos 1 and 2: Perimeter stitching appears generally even and machine-sewn; detailed stress-point construction is not fully visible."
    },
    "possible_model_reasoning": [
        "No Coach model is proposed because the Coach probability is below 0.10 and no identifier or distinctive Coach construction is visible.",
        "photo 3: The large flap messenger\/laptop-bag format is generic and is not enough to match a Coach catalog style.",
        "Condition: Very Good based on the supplied product photos; leather shows normal tonal variation but no obvious major tears or broken hardware. Interior details, odor, and hidden wear remain unknown."
    ],
    "confidence": 0.84,
    "recommended_max_bid": 20,
    "estimated_resale_low": 15,
    "estimated_resale_high": 60,
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17551,
            "output_tokens": 818,
            "total_tokens": 18369,
            "estimated_cost_usd": 0.008984
        }
    ]
}