Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.08,
    "vintage_probability": 0.45,
    "authenticity_confidence": 0.06,
    "image_quality_score": 0.88,
    "seller_misidentification_probability": 0.82,
    "estimated_era": "modern (2000s+), non-Coach",
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather shoulder handbag with gold-tone hardware and a vintage-inspired flap silhouette",
        "photo 3: construction appears to be a real leather bag rather than nylon, faux leather, or coated canvas",
        "photo 4: seller's stated navy leather and lined construction are visible or consistent with the photos"
    ],
    "negative_evidence": [
        "photo 1: central U-shaped ring closure is not a recognizable Coach turnlock and the hardware appears decorative rather than Coach-specific",
        "photo 1: no visible Coach wordmark, horse-and-carriage, creed patch, or leather hangtag",
        "photo 4: back is plain and has no visible Coach branding",
        "photo 1: thin narrow strap, fabric lining, and soft fashion-purse construction are less characteristic of classic unlined glove-tanned Coach bags",
        "seller states: no brand tags"
    ],
    "missing_information": [
        "Straight-on interior photo, including all pockets and seams",
        "Close-up of any interior label, leather patch, or fabric tag",
        "Close-up of zipper pulls, clasp hardware, and strap attachments",
        "Bottom, corners, and interior condition photos"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible in the provided photos, so this presently reads as a generic leather lookalike rather than an identifiable Coach bag",
        "The lined, soft construction and decorative U-ring closure do not strongly match the classic 1970s-1990s Coach construction described by the seller's era estimate"
    ],
    "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": "Gold-tone small hardware at the strap ends and a central U-shaped ring closure are visible; no Coach engraving is legible.",
        "leather_description": "Navy smooth-looking leather with visible creasing and a soft, lightly glossy finish; exact leather type is not determinable from photos.",
        "lining_description": "Seller states black cotton lining, but the interior lining is not visible in the provided photos.",
        "strap_construction": "Thin narrow navy shoulder strap attached with small gold-tone clips or rings; full attachment details are only partially visible.",
        "stitching_description": "Visible exterior stitching is generally straight and reasonably even, with curved flap seams and a central vertical seam; interior stitching is not visible."
    },
    "possible_model_reasoning": [
        "No Coach model is assigned because the bag lacks a visible Coach identifier and its central ring closure and lined soft construction are generic.",
        "Condition appears approximately Very Good based on intact exterior, moderate creasing, and no obvious tears; interior, odor, and underside condition are unknown.",
        "The seller's 1980s-1990s estimate is not verifiable from the photos; construction could fit a later generic leather fashion bag."
    ],
    "confidence": 0.82,
    "recommended_max_bid": 15,
    "estimated_resale_low": 15,
    "estimated_resale_high": 45,
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18107,
            "output_tokens": 831,
            "total_tokens": 18938,
            "estimated_cost_usd": 0.009237
        }
    ]
}