Vintage Coach Hunter

{
    "is_handbag_probability": 0.97,
    "coach_probability": 0.08,
    "vintage_probability": 0.585,
    "authenticity_confidence": 0.07,
    "image_quality_score": 0.61,
    "seller_misidentification_probability": 0.08,
    "confidence": 0.695,
    "recommended_max_bid": 12,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 37.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 2: leather handbag with a structured satchel silhouette and warm brown leather",
        "photo 1: interior appears suede-like and the bag has metal closure hardware",
        "photo 1: unlined suede-back interior consistent with older leather bags generally",
        "photo 2-3: solid brass-tone hardware and smooth leather exterior - population where vintage bags hide"
    ],
    "negative_evidence": [
        "photo 2: no visible COACH wordmark, horse-and-carriage, or leather hangtag",
        "photo 1: no visible Coach creed patch or serial\/style number in the interior",
        "photo 2: the prominent clasp and angular flap construction do not closely match the documented classic Coach turnlock silhouettes",
        "photo 3: hardware and handle construction appear generic rather than identifiable Coach construction",
        "seller title and description identify only a vintage leather satchel and provide no Coach-specific evidence",
        "photo 1: interior shows no creed patch on visible back wall - unmarked suede-like interior",
        "photo 1: closure uses snap buttons (four snaps visible on flap underside) plus hasp-type clasp, not Coach turnlock geometry",
        "photo 2: exterior flap with corner rivets and top handle - no turnlock, no hangtag, no wordmark visible",
        "photo 1-3: no COACH wordmark, horse-and-carriage, creed, or hangtag visible",
        "photo 2-3: silhouette with snap-secured top handle and riveted flap does not match catalog classic styles"
    ],
    "missing_information": [
        "Straight-on photograph of the entire interior back wall and all pockets to check for a creed patch",
        "Close-up photographs of any interior label, stamp, or fabric tag",
        "Close-up of the clasp, closure underside, and any zipper or hardware markings",
        "Photos of the back, bottom, sides, corners, and full handle attachments",
        "Full strap photograph, if a detachable strap is included",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
        "photo of front exterior closure centered - hasp\/clasp front and back plate",
        "photo of bottom, sides, corners and strap\/hardware stamps",
        "photo of hangtag if present and any interior or hardware brand stamps",
        "seller-stated dimensions for scale"
    ],
    "authenticity_concerns": [
        "The bag lacks any visible Coach identifier and has generic construction; it is more consistent with an unbranded vintage leather bag than a Coach model",
        "The unusual clasp should not be treated as Coach evidence because it does not visibly match a documented vintage Coach turnlock",
        "photo 1-3: no COACH identifier visible to authenticate - no creed, wordmark, or Coach hardware stamping"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match from the visible photos. The structured flap satchel could be a generic vintage leather handbag, but silhouette alone is insufficient for Coach identification.",
        "photo 1: the interior is shown but no legible creed or serial is visible; a close-up of the back wall and pockets is still needed.",
        "Condition: Good to Fair; visible heavy creasing, surface wear, and interior discoloration in photos 1\u20133. Bottom corners, strap condition, odor, and possible lining damage are not shown.",
        "No Coach model fits: snap-button flap plus hasp clasp and riveted top-handle construction has no match in classic glove-tanned catalog (City Bag, Willis, Court, Station, etc. all use turnlock\/zip, not snaps)",
        "No creed\/serial to decode, no wordmark, no turnlock geometry to support Coach manufacture",
        "Condition: Good to Very Good based on limited views; leather wrinkled\/creased with sheen (photo 2), interior soiled\/marked (photo 1), corners\/bottom\/interior pocket not shown so grade capped and lining\/hardware function unknown"
    ],
    "estimated_era": "modern (2000s+), non-Coach",
    "observed_features": {
        "creed_present": false,
        "serial_or_style_number_present": false,
        "coach_wordmark_present": false,
        "turnlock_present": false,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photo 1 and photo 2: central metal closure with a small rotating-looking tab and additional round fittings; warm brass-tone appearance, but exact mechanism is partly obscured",
        "leather_description": "photo 2 and photo 3: smooth glossy brown leather with substantial creasing, wrinkles, and surface wear; exact leather type is not determinable",
        "lining_description": "photo 1: light-colored suede-like or fabric interior with visible discoloration and wear; material cannot be confirmed",
        "strap_construction": "photo 2 and photo 3: short top handle with metal attachment loops and a padded leather handle cover; detachable shoulder strap is not visible",
        "stitching_description": "photo 2 and photo 3: visible contrasting light stitching appears generally even, with some edge wear; lower corners and full seam condition are not shown"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0022,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.08,
                "vintage_probability": 0.62,
                "authenticity_confidence": 0.06,
                "image_quality_score": 0.72,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 2: leather handbag with a structured satchel silhouette and warm brown leather",
                    "photo 1: interior appears suede-like and the bag has metal closure hardware"
                ],
                "negative_evidence": [
                    "photo 2: no visible COACH wordmark, horse-and-carriage, or leather hangtag",
                    "photo 1: no visible Coach creed patch or serial\/style number in the interior",
                    "photo 2: the prominent clasp and angular flap construction do not closely match the documented classic Coach turnlock silhouettes",
                    "photo 3: hardware and handle construction appear generic rather than identifiable Coach construction",
                    "seller title and description identify only a vintage leather satchel and provide no Coach-specific evidence"
                ],
                "missing_information": [
                    "Straight-on photograph of the entire interior back wall and all pockets to check for a creed patch",
                    "Close-up photographs of any interior label, stamp, or fabric tag",
                    "Close-up of the clasp, closure underside, and any zipper or hardware markings",
                    "Photos of the back, bottom, sides, corners, and full handle attachments",
                    "Full strap photograph, if a detachable strap is included"
                ],
                "authenticity_concerns": [
                    "The bag lacks any visible Coach identifier and has generic construction; it is more consistent with an unbranded vintage leather bag than a Coach model",
                    "The unusual clasp should not be treated as Coach evidence because it does not visibly match a documented vintage Coach turnlock"
                ],
                "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 and photo 2: central metal closure with a small rotating-looking tab and additional round fittings; warm brass-tone appearance, but exact mechanism is partly obscured",
                    "leather_description": "photo 2 and photo 3: smooth glossy brown leather with substantial creasing, wrinkles, and surface wear; exact leather type is not determinable",
                    "lining_description": "photo 1: light-colored suede-like or fabric interior with visible discoloration and wear; material cannot be confirmed",
                    "strap_construction": "photo 2 and photo 3: short top handle with metal attachment loops and a padded leather handle cover; detachable shoulder strap is not visible",
                    "stitching_description": "photo 2 and photo 3: visible contrasting light stitching appears generally even, with some edge wear; lower corners and full seam condition are not shown"
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match from the visible photos. The structured flap satchel could be a generic vintage leather handbag, but silhouette alone is insufficient for Coach identification.",
                    "photo 1: the interior is shown but no legible creed or serial is visible; a close-up of the back wall and pockets is still needed.",
                    "Condition: Good to Fair; visible heavy creasing, surface wear, and interior discoloration in photos 1\u20133. Bottom corners, strap condition, odor, and possible lining damage are not shown."
                ],
                "confidence": 0.74,
                "recommended_max_bid": 12,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-3: no COACH identifier visible to authenticate - no creed, wordmark, or Coach hardware stamping"
                ],
                "authenticity_confidence": 0.08,
                "coach_probability": 0.08,
                "confidence": 0.65,
                "estimated_era": "unknown",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.5,
                "is_handbag_probability": 0.96,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
                    "photo of front exterior closure centered - hasp\/clasp front and back plate",
                    "photo of bottom, sides, corners and strap\/hardware stamps",
                    "photo of hangtag if present and any interior or hardware brand stamps",
                    "seller-stated dimensions for scale"
                ],
                "negative_evidence": [
                    "photo 1: interior shows no creed patch on visible back wall - unmarked suede-like interior",
                    "photo 1: closure uses snap buttons (four snaps visible on flap underside) plus hasp-type clasp, not Coach turnlock geometry",
                    "photo 2: exterior flap with corner rivets and top handle - no turnlock, no hangtag, no wordmark visible",
                    "photo 1-3: no COACH wordmark, horse-and-carriage, creed, or hangtag visible",
                    "photo 2-3: silhouette with snap-secured top handle and riveted flap does not match catalog classic styles"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone hardware: hasp-like front clasp (photo 1 top and bottom) and large snap buttons on flap and handle (photo 1, photo 3); tone aged\/dull, no COACH stamping visible; not the thin oval-plate Coach turnlock",
                    "leather_description": "cognac\/tan smooth leather with surface wrinkling\/creasing and sheen (photo 2-3); appears to be genuine leather, weight\/thickness not determinable",
                    "lining_description": "unlined with light beige suede-like flesh side visible in interior (photo 1); no fabric lining, no pocket or creed visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light tan contrast stitching around flap and handle edges, appears even but not close enough to assess stress points (photo 2-3)",
                    "strap_construction": "short top handle wrapped\/padded with snap-button attachment to metal brackets (photo 2-3); no shoulder strap shown",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: unlined suede-back interior consistent with older leather bags generally",
                    "photo 2-3: solid brass-tone hardware and smooth leather exterior - population where vintage bags hide"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: snap-button flap plus hasp clasp and riveted top-handle construction has no match in classic glove-tanned catalog (City Bag, Willis, Court, Station, etc. all use turnlock\/zip, not snaps)",
                    "No creed\/serial to decode, no wordmark, no turnlock geometry to support Coach manufacture",
                    "Condition: Good to Very Good based on limited views; leather wrinkled\/creased with sheen (photo 2), interior soiled\/marked (photo 1), corners\/bottom\/interior pocket not shown so grade capped and lining\/hardware function unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.08,
                "vintage_probability": 0.55
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16700,
            "output_tokens": 797,
            "total_tokens": 17497,
            "estimated_cost_usd": 0.008593
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17126,
            "output_tokens": 1706,
            "total_tokens": 18832,
            "estimated_cost_usd": 0.00479
        }
    ]
}