Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.46,
    "vintage_probability": 0.68,
    "authenticity_confidence": 0.34,
    "image_quality_score": 0.87,
    "seller_misidentification_probability": 0.46,
    "estimated_era": "unknown",
    "possible_models": [
        "Station (5130)",
        "City Bag (9790)",
        "Court (9870)"
    ],
    "positive_evidence": [
        "photo 1: structured black leather flap crossbody with a brass-tone turnlock, adjustable strap, and removable side attachments, all compatible with several vintage Coach constructions",
        "photo 1: strap attachments and side hardware resemble the substantial brass clip hardware used on vintage Coach crossbody styles",
        "photo 3: rear exterior slip pocket and proportionate flap silhouette are consistent with classic Coach bag layouts",
        "photo 4: leather appears substantial and smooth rather than obviously faux or fabric-coated"
    ],
    "negative_evidence": [
        "photo 1: no legible COACH wordmark, horse-and-carriage, hangtag, or other brand identifier is visible",
        "photos 1-7: seller provides no interior or creed-patch view",
        "photos 1-7: the visible silhouette and brass hardware are also common on unbranded vintage leather bags",
        "photos 1-7: leather appears heavily finished\/smooth and the construction cannot establish Coach manufacture by itself"
    ],
    "missing_information": [
        "photo 7: interior emptied and photographed, especially the back wall and slip-pocket area where a creed patch may be located",
        "photo 7: close, straight-on image of any interior creed, country line, or fabric tag",
        "photo 1: close-up of the turnlock front and back, including any stamp",
        "photo 1: close-up of both strap clips and any zipper pull stamps",
        "photo 1: bottom, all corners, and strap fold\/attachment condition",
        "seller-stated dimensions and confirmation that the leather is genuine"
    ],
    "authenticity_concerns": [
        "photos 1-7: no Coach identifier is visible, so a generic unbranded lookalike remains plausible",
        "photos 1-7: the bag's visible construction cannot be matched confidently to a specific Coach style without the interior, creed, and hardware details"
    ],
    "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": true,
        "hangtag_present": false,
        "hardware_description": "photo 1: brass-tone oval turnlock with a narrow vertical turning tab; photos 5-7: multiple brass-tone strap clips and buckles, with no legible branding",
        "leather_description": "photos 1-7: black smooth leather or leather-like material with visible surface rubbing, creasing, and uneven sheen; exact material cannot be confirmed",
        "lining_description": "not_visible",
        "strap_construction": "photos 1 and 6: adjustable stitched leather shoulder strap with buckle adjustment, snap\/rivet details, and removable clip attachments",
        "stitching_description": "photos 1-7: mostly straight perimeter stitching and folded\/finished edges are visible, with some unevenness and wear around the lower edges"
    },
    "possible_model_reasoning": [
        "Station (5130) is a possible silhouette match because of the structured flap, turnlock, rear slip pocket, crossbody strap, and brass-tone removable hardware; the expected creed and interior layout are not shown.",
        "City Bag (9790) is a possible but less certain match because of the flap, rear pocket, and crossbody construction; proportions and handle configuration cannot be verified from the available views.",
        "Court (9870) is a possible general silhouette match, but the characteristic top-handle details and interior cannot be confirmed.",
        "No serial decode or era-specific creed evidence is available; visible brass hardware and construction suggest a vintage-inspired or vintage-era bag, but do not establish a date.",
        "Condition: Good; photos show surface rubbing, creasing, and edge wear, while the interior, bottom, odor, and functional condition are not shown."
    ],
    "confidence": 0.63,
    "recommended_max_bid": 25,
    "estimated_resale_low": 20,
    "estimated_resale_high": 90,
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 23230,
            "output_tokens": 1003,
            "total_tokens": 24233,
            "estimated_cost_usd": 0.011699
        }
    ]
}