Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.085,
    "vintage_probability": 0.44,
    "authenticity_confidence": 0.065,
    "image_quality_score": 0.62,
    "seller_misidentification_probability": 0.085,
    "confidence": 0.655,
    "recommended_max_bid": 11,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 2: Red leather shoulder bag with a practical zip-top rectangular silhouette and front zip compartment.",
        "photo 4: Leather appears smooth and substantial rather than obviously synthetic.",
        "photo 6: Long adjustable-looking shoulder strap and generally even construction are compatible with a vintage leather bag.",
        "photo 1-6: red leather shoulder\/crossbody handbag, vintage-style proportions consistent with population where misidentified bags hide"
    ],
    "negative_evidence": [
        "photo 1: No visible Coach wordmark, horse-and-carriage, hangtag, creed patch, or other Coach identifier.",
        "photo 4: The bag uses a plain zip-top\/front-pocket design with no visible Coach-specific turnlock or classic Coach hardware.",
        "photo 6: Strap attachment and zipper construction appear generic; no Coach-stamped hardware is visible.",
        "listing text: Seller describes the item only as a vintage leather bag and does not provide a Coach model, origin, creed, or serial.",
        "photo 4-6: zip-top closure with exterior slip pocket and thin fixed strap - no turnlock, no brass dogleash clips, no bead-chain hangtag visible",
        "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage or recognizable Coach silhouette visible",
        "photo 4-6: smooth thin shiny red leather does not show thick matte glove-tanned grain and patina expected for vintage Coach classics",
        "seller states velvet interior - velvet lining inconsistent with unlined suede-back glove-tanned Coach classics and not shown in photos"
    ],
    "missing_information": [
        "Interior photo showing the claimed velvet lining and all interior walls or pockets.",
        "Straight-on close-up of any interior leather patch, fabric tag, or brand label.",
        "Close-ups of both zipper pulls and all strap attachment hardware.",
        "Bottom, side seams, corners, and a full strap-condition photo.",
        "Exact measurements and any country-of-origin markings.",
        "photo 1-6: interior not shown - creed patch, lining and zip pocket not visible; request emptied interior and creed close-up",
        "photo 1-6: no hardware close-up - zipper brand, metal tone and strap attachments unknown",
        "photo 1-6: no hangtag faces, wordmark or horse-and-carriage shown",
        "photo 1-6: no bottom, close stitching or scale\/dimensions shown"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible, so the bag currently reads as a generic leather shoulder bag rather than an identifiable Coach product.",
        "The silhouette alone is not sufficient to distinguish Coach from numerous unbranded or other-brand leather bags."
    ],
    "possible_model_reasoning": [
        "The rectangular zip-top body and front zip pocket do not provide a strong match to the listed classic Coach turnlock models.",
        "A generic vintage leather shoulder bag is more likely than a Coach Basic Bag or Soho style because no Coach identifier, signature hardware, or distinctive model construction is visible.",
        "Condition: Very Good by the seller's description and photos, with visible surface marks and creasing; interior, bottom, odor, and strap stress points are not shown, so condition cannot be fully verified.",
        "No Coach identifier visible so no catalog match can be ranked; zip-top thin-strap silhouette does not match turnlock flap classics like City Bag (9790), Willis (9927), Court (9870) or Station (5130)",
        "Seller-stated velvet interior, if accurate, points away from unlined Coach classics",
        "Condition: appears Very Good to Excellent externally with light surface marks; interior, bottom corners and strap fold not shown so grade capped"
    ],
    "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 4: Zipper closures are visible, but no brand engraving or distinctive Coach hardware can be read. Other hardware is minimally visible.",
        "leather_description": "photos 2-6: Smooth red leather or leather-like material with surface creasing and light marks; exact material cannot be confirmed from photos.",
        "lining_description": "not_visible in photos; seller states velvet interior",
        "strap_construction": "photos 1-3 and 6: Thin matching-red long shoulder strap attached at the upper side corners; adjustability and attachment details are not clearly shown.",
        "stitching_description": "photos 4-6: Visible topstitching is generally straight and even, with a central front seam and stitched zip compartments; close stress-point inspection is unavailable."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0066,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.12,
                "vintage_probability": 0.38,
                "authenticity_confidence": 0.08,
                "image_quality_score": 0.79,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 2: Red leather shoulder bag with a practical zip-top rectangular silhouette and front zip compartment.",
                    "photo 4: Leather appears smooth and substantial rather than obviously synthetic.",
                    "photo 6: Long adjustable-looking shoulder strap and generally even construction are compatible with a vintage leather bag."
                ],
                "negative_evidence": [
                    "photo 1: No visible Coach wordmark, horse-and-carriage, hangtag, creed patch, or other Coach identifier.",
                    "photo 4: The bag uses a plain zip-top\/front-pocket design with no visible Coach-specific turnlock or classic Coach hardware.",
                    "photo 6: Strap attachment and zipper construction appear generic; no Coach-stamped hardware is visible.",
                    "listing text: Seller describes the item only as a vintage leather bag and does not provide a Coach model, origin, creed, or serial."
                ],
                "missing_information": [
                    "Interior photo showing the claimed velvet lining and all interior walls or pockets.",
                    "Straight-on close-up of any interior leather patch, fabric tag, or brand label.",
                    "Close-ups of both zipper pulls and all strap attachment hardware.",
                    "Bottom, side seams, corners, and a full strap-condition photo.",
                    "Exact measurements and any country-of-origin markings."
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible, so the bag currently reads as a generic leather shoulder bag rather than an identifiable Coach product.",
                    "The silhouette alone is not sufficient to distinguish Coach from numerous unbranded or other-brand leather bags."
                ],
                "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 4: Zipper closures are visible, but no brand engraving or distinctive Coach hardware can be read. Other hardware is minimally visible.",
                    "leather_description": "photos 2-6: Smooth red leather or leather-like material with surface creasing and light marks; exact material cannot be confirmed from photos.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1-3 and 6: Thin matching-red long shoulder strap attached at the upper side corners; adjustability and attachment details are not clearly shown.",
                    "stitching_description": "photos 4-6: Visible topstitching is generally straight and even, with a central front seam and stitched zip compartments; close stress-point inspection is unavailable."
                },
                "possible_model_reasoning": [
                    "The rectangular zip-top body and front zip pocket do not provide a strong match to the listed classic Coach turnlock models.",
                    "A generic vintage leather shoulder bag is more likely than a Coach Basic Bag or Soho style because no Coach identifier, signature hardware, or distinctive model construction is visible.",
                    "Condition: Very Good by the seller's description and photos, with visible surface marks and creasing; interior, bottom, odor, and strap stress points are not shown, so condition cannot be fully verified."
                ],
                "confidence": 0.76,
                "recommended_max_bid": 12,
                "estimated_resale_low": 15,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.05,
                "confidence": 0.55,
                "estimated_era": "unknown",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.45,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo 1-6: interior not shown - creed patch, lining and zip pocket not visible; request emptied interior and creed close-up",
                    "photo 1-6: no hardware close-up - zipper brand, metal tone and strap attachments unknown",
                    "photo 1-6: no hangtag faces, wordmark or horse-and-carriage shown",
                    "photo 1-6: no bottom, close stitching or scale\/dimensions shown"
                ],
                "negative_evidence": [
                    "photo 4-6: zip-top closure with exterior slip pocket and thin fixed strap - no turnlock, no brass dogleash clips, no bead-chain hangtag visible",
                    "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage or recognizable Coach silhouette visible",
                    "photo 4-6: smooth thin shiny red leather does not show thick matte glove-tanned grain and patina expected for vintage Coach classics",
                    "seller states velvet interior - velvet lining inconsistent with unlined suede-back glove-tanned Coach classics and not shown in photos"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "zip-top closure with small side pull; metal tone and zipper brand not_visible in photos",
                    "leather_description": "smooth red leather with light sheen, appears thin; no glove-tanned texture discernible at this distance",
                    "lining_description": "not_visible in photos; seller states velvet interior",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight center seam on front slip pocket and top edge stitching visible in photo 4-6; close detail not_visible",
                    "strap_construction": "thin narrow fixed-length crossbody shoulder strap, sewn directly to body, no buckle adjustment or clips visible",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-6: red leather shoulder\/crossbody handbag, vintage-style proportions consistent with population where misidentified bags hide"
                ],
                "possible_model_reasoning": [
                    "No Coach identifier visible so no catalog match can be ranked; zip-top thin-strap silhouette does not match turnlock flap classics like City Bag (9790), Willis (9927), Court (9870) or Station (5130)",
                    "Seller-stated velvet interior, if accurate, points away from unlined Coach classics",
                    "Condition: appears Very Good to Excellent externally with light surface marks; interior, bottom corners and strap fold not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.05,
                "vintage_probability": 0.5
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17744,
            "output_tokens": 932,
            "total_tokens": 18676,
            "estimated_cost_usd": 0.009334
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18080,
            "output_tokens": 1281,
            "total_tokens": 19361,
            "estimated_cost_usd": 0.004641
        }
    ]
}