Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.03,
    "vintage_probability": 0.635,
    "authenticity_confidence": 0.035,
    "image_quality_score": 0.79,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.775,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather structured handbag with substantial construction and brass-tone rivets.",
        "photo 4: interior appears leather-lined with an interior slip pocket, consistent with an older satchel but not specifically Coach.",
        "photo 1: seller lists the bag as vintage leather, though seller text is weak evidence and does not identify Coach.",
        "photo 1-6: leather handbag with brass-tone hardware and unlined leather interior, general vintage materials",
        "photo 6: unlined interior consistent with age but not specific to Coach"
    ],
    "negative_evidence": [
        "photo 1: no visible Coach wordmark, horse-and-carriage, hangtag, or other Coach identifier.",
        "photo 7: no visible creed patch or serial\/style number on the interior.",
        "photo 1: central closure is an ornate latch\/turning mechanism unlike the simple classic Coach turnlock geometry.",
        "photo 1: mixed-looking brass-tone and silver-tone hardware is not typical evidence for a vintage Coach classic.",
        "photo 1: the wide hardbody satchel silhouette is generic and shared by many unbranded vintage bag makers.",
        "photo 1, photo 2: no COACH wordmark, horse-and-carriage, or hangtag visible on exterior",
        "photo 6: no creed patch visible on interior walls in open top view; no fabric tag visible",
        "photo 1, photo 2: closure is center hasp \/ keyhole clasp with riveted leather tabs, not Coach turnlock geometry",
        "photo 1-5: rigid doctor \/ hardbody satchel silhouette with riveted handles and bottom corner straps does not match any Coach catalog style",
        "photo 4, photo 5: side gusset construction and raw edge finishing unlike vintage Coach glove-tanned classics"
    ],
    "missing_information": [
        "Straight-on close-up of every interior wall and pocket for any small leather Coach creed or label.",
        "Close-up of the central clasp, zipper pulls, and all hardware for maker markings.",
        "Bottom, corners, strap attachment points, and stitching close-ups.",
        "Seller-stated dimensions, country of origin, and any markings not captured in the photos.",
        "photo 6: interior walls fully emptied in raking light to confirm no creed patch, fabric label or metal tag",
        "photo 1-3: close-up of front clasp hardware front and back to check for maker stamps",
        "photo 3: back, bottom and corners to assess wear and construction"
    ],
    "authenticity_concerns": [
        "The bag has no visible Coach identifiers and appears more consistent with an unbranded vintage leather satchel than a Coach model.",
        "The closure and hardbody construction do not closely match the catalog silhouettes of the listed vintage Coach handbag styles.",
        "Mixed hardware appearance, if confirmed in close-up, would be inconsistent with a typical vintage Coach classic."
    ],
    "possible_model_reasoning": [
        "No Coach model is a close match: the hard rectangular satchel and decorative central clasp are not characteristic of the listed City Bag, Willis, Court, Station, or Basic Bag silhouettes.",
        "A pre-creed Cashin-era Coach cannot be established because no Cashin label, Coach metal tag, distinctive Coach construction, or catalog-specific silhouette is visible.",
        "Condition: Good to Fair; extensive scratches and edge wear are visible in photos 1, 2, 3, and 5, while strap attachment integrity and odor cannot be assessed.",
        "No Coach model fits: rigid doctor hardbody with center hasp lock, riveted top handles and corner straps is not a Cashin-era or classic-era Coach silhouette (no Duffle, Willis, Court, Station, City Bag, Dinky features)",
        "No hard identifiers: no creed, serial, wordmark, hangtag or zipper stamp visible in any of 6 photos",
        "Condition: Good; widespread surface scratches and scuffs (photo 1-3), edge\/corner rubbing (photo 1, photo 5), dull hardware, but no holes, tears or broken hardware visible; interior not fully shown so capped"
    ],
    "estimated_era": "unknown",
    "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: central decorative latch with a small rotating-looking circular element; multiple brass-tone rivets and some lighter\/silver-looking closure hardware. No Coach engraving is visible.",
        "leather_description": "photo 1: smooth dark reddish-brown leather with extensive scratches, creasing, and surface wear; edges appear finished or darkened.",
        "lining_description": "photo 7: dark reddish-brown leather-looking interior with a slip pocket; no fabric lining or creed is visible.",
        "strap_construction": "photos 1 and 3: two fixed top handles attached with layered leather tabs and rivets; no detachable shoulder strap is visible.",
        "stitching_description": "photos 1 and 3: perimeter stitching appears generally even, though resolution does not support detailed assessment at all stress points."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0022,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.62,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.9,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather structured handbag with substantial construction and brass-tone rivets.",
                    "photo 4: interior appears leather-lined with an interior slip pocket, consistent with an older satchel but not specifically Coach.",
                    "photo 1: seller lists the bag as vintage leather, though seller text is weak evidence and does not identify Coach."
                ],
                "negative_evidence": [
                    "photo 1: no visible Coach wordmark, horse-and-carriage, hangtag, or other Coach identifier.",
                    "photo 7: no visible creed patch or serial\/style number on the interior.",
                    "photo 1: central closure is an ornate latch\/turning mechanism unlike the simple classic Coach turnlock geometry.",
                    "photo 1: mixed-looking brass-tone and silver-tone hardware is not typical evidence for a vintage Coach classic.",
                    "photo 1: the wide hardbody satchel silhouette is generic and shared by many unbranded vintage bag makers."
                ],
                "missing_information": [
                    "Straight-on close-up of every interior wall and pocket for any small leather Coach creed or label.",
                    "Close-up of the central clasp, zipper pulls, and all hardware for maker markings.",
                    "Bottom, corners, strap attachment points, and stitching close-ups.",
                    "Seller-stated dimensions, country of origin, and any markings not captured in the photos."
                ],
                "authenticity_concerns": [
                    "The bag has no visible Coach identifiers and appears more consistent with an unbranded vintage leather satchel than a Coach model.",
                    "The closure and hardbody construction do not closely match the catalog silhouettes of the listed vintage Coach handbag styles.",
                    "Mixed hardware appearance, if confirmed in close-up, would be inconsistent with a typical vintage Coach classic."
                ],
                "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: central decorative latch with a small rotating-looking circular element; multiple brass-tone rivets and some lighter\/silver-looking closure hardware. No Coach engraving is visible.",
                    "leather_description": "photo 1: smooth dark reddish-brown leather with extensive scratches, creasing, and surface wear; edges appear finished or darkened.",
                    "lining_description": "photo 7: dark reddish-brown leather-looking interior with a slip pocket; no fabric lining or creed is visible.",
                    "strap_construction": "photos 1 and 3: two fixed top handles attached with layered leather tabs and rivets; no detachable shoulder strap is visible.",
                    "stitching_description": "photos 1 and 3: perimeter stitching appears generally even, though resolution does not support detailed assessment at all stress points."
                },
                "possible_model_reasoning": [
                    "No Coach model is a close match: the hard rectangular satchel and decorative central clasp are not characteristic of the listed City Bag, Willis, Court, Station, or Basic Bag silhouettes.",
                    "A pre-creed Cashin-era Coach cannot be established because no Cashin label, Coach metal tag, distinctive Coach construction, or catalog-specific silhouette is visible.",
                    "Condition: Good to Fair; extensive scratches and edge wear are visible in photos 1, 2, 3, and 5, while strap attachment integrity and odor cannot be assessed."
                ],
                "confidence": 0.83,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.04,
                "coach_probability": 0.03,
                "confidence": 0.72,
                "estimated_era": "unknown",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.68,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo 6: interior walls fully emptied in raking light to confirm no creed patch, fabric label or metal tag",
                    "photo 1-3: close-up of front clasp hardware front and back to check for maker stamps",
                    "photo 3: back, bottom and corners to assess wear and construction"
                ],
                "negative_evidence": [
                    "photo 1, photo 2: no COACH wordmark, horse-and-carriage, or hangtag visible on exterior",
                    "photo 6: no creed patch visible on interior walls in open top view; no fabric tag visible",
                    "photo 1, photo 2: closure is center hasp \/ keyhole clasp with riveted leather tabs, not Coach turnlock geometry",
                    "photo 1-5: rigid doctor \/ hardbody satchel silhouette with riveted handles and bottom corner straps does not match any Coach catalog style",
                    "photo 4, photo 5: side gusset construction and raw edge finishing unlike vintage Coach glove-tanned classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone hasp \/ keyhole front clasp with rivets and round studs; matching brass-tone rivets at handle bases and bottom corners; aged dull tone, no COACH stamping visible",
                    "leather_description": "smooth brown \/ oxblood leather with surface scratches, scuffs and patina, edge wear at corners; appears vintage leather, not glove-tanned suede-back classic finish clearly shown",
                    "lining_description": "unlined leather interior visible in photo 6, reddish-brown smooth side with slip pocket on one wall; no fabric lining visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "perimeter stitching visible around top edge in photo 3; not close enough to assess evenness, no obvious contrast thread",
                    "strap_construction": "two fixed short top handles, riveted to front body via leather tabs in photo 1-3; no detachable shoulder strap, no buckle adjustment, no dogleash clips",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-6: leather handbag with brass-tone hardware and unlined leather interior, general vintage materials",
                    "photo 6: unlined interior consistent with age but not specific to Coach"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: rigid doctor hardbody with center hasp lock, riveted top handles and corner straps is not a Cashin-era or classic-era Coach silhouette (no Duffle, Willis, Court, Station, City Bag, Dinky features)",
                    "No hard identifiers: no creed, serial, wordmark, hangtag or zipper stamp visible in any of 6 photos",
                    "Condition: Good; widespread surface scratches and scuffs (photo 1-3), edge\/corner rubbing (photo 1, photo 5), dull hardware, but no holes, tears or broken hardware visible; interior not fully shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.04,
                "vintage_probability": 0.65
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28783,
            "output_tokens": 928,
            "total_tokens": 29711,
            "estimated_cost_usd": 0.01374
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30095,
            "output_tokens": 1625,
            "total_tokens": 31720,
            "estimated_cost_usd": 0.007319
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}