Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.055,
    "vintage_probability": 0.56,
    "authenticity_confidence": 0.045,
    "image_quality_score": 0.755,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.77,
    "recommended_max_bid": 10,
    "estimated_resale_low": 9,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a structured black leather-like shoulder handbag with a vintage-style frame and kiss-lock closure.",
        "photo 2: interior appears leather-lined or leather-like and includes a zippered pocket.",
        "photo 6: ruler indicates an approximately 17-inch overall width, consistent with a handbag rather than a small leather good."
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, hangtag, or other Coach branding.",
        "photo 2: the visible interior has no rectangular sewn Coach creed patch.",
        "photo 3: the frame closure is a kiss-lock frame rather than a recognizable Coach turnlock.",
        "photo 3: the bright gold-tone frame and decorative clasp appear generic and plated rather than characteristic solid vintage Coach brass hardware.",
        "photo 4: the zipper pull has a decorative geometric marking, but no legible Coach or period Coach zipper branding is visible.",
        "photo 1: the shiny, heavily textured black exterior and pleated frame silhouette do not closely match the catalogued classic Coach glove-tanned styles shown in the reference.",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible anywhere",
        "photo 1: kiss-lock frame closure with thin fixed double shoulder straps - not a Coach classic turnlock \/ dogleash \/ buckle silhouette",
        "photo 2-4: bright gold-tone plated frame with wear\/tarnish, not solid brass vintage Coach hardware",
        "photo 1,6: thin smooth black leather with sheen and soft pleated construction, not thick matte glove-tanned cowhide with suede back",
        "photo 3-4: unbranded zipper pull with no Talon\/YKK\/Coach stamp visible"
    ],
    "missing_information": [
        "photo 1-6: no straight-on close-up of every interior wall and pocket seam; a concealed or removed label cannot be ruled out.",
        "photo 1-6: no close-up of the zipper pull, frame hardware reverse, strap attachment points, or underside leather.",
        "photo 1-6: no photo of the bottom, back, and all corners.",
        "seller-stated material, country of manufacture, dimensions, and any interior label information are not provided.",
        "photo of any maker mark, interior label or stamped patch in close-up raking light",
        "photo of bottom, corners and side profile for condition cap",
        "photo of hardware stamps on frame and zipper pull"
    ],
    "authenticity_concerns": [
        "photo 1-4: the bag presents as an unbranded vintage-style lookalike with no Coach identifier visible.",
        "photo 3-4: generic bright gold-tone frame hardware and decorative clasp are inconsistent with the usual hardware profile of classic Coach bags."
    ],
    "possible_model_reasoning": [
        "The frame kiss-lock, pleating, and large shoulder-bag silhouette are not a strong match for the listed classic Coach models; no Coach model is proposed.",
        "The absence of a visible creed, serial\/style number, wordmark, or hangtag substantially lowers the Coach likelihood, although a pre-creed Cashin-era bag is theoretically possible.",
        "The silhouette and hardware more plausibly indicate an unbranded vintage or vintage-style frame handbag than a Coach-made bag.",
        "Condition: Good; visible exterior creasing and wear, shiny\/possibly over-finished leather surface, and scuffing or tarnish on the frame are present in photos 1, 3, and 5. Interior appears used with light debris or marks in photos 2-5; odor and hidden damage are unknown.",
        "No Coach identifier visible in any of 6 photos despite good interior views where creed would sit - fails Step 3 hard identifiers",
        "Silhouette is a pleated kiss-frame shoulder bag; Coach Cashin era did use kisslock frames but on structured clutches\/satchels with industrial hardware and striped linings, not this thin-strap soft pleated form",
        "Construction - thin coated leather, plated frame, unbranded zipper - points to generic department-store vintage-style bag, not Coach",
        "Condition: Good to Very Good; exterior intact with creasing (photo 1,6), frame plating worn (photo 4), interior lightly soiled (photo 2); bottom\/corners not shown so 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 1, photo 3, photo 4: bright gold-tone rectangular kiss-lock frame with a small decorative central clasp; no legible brand engraving visible.",
        "leather_description": "photo 1, photo 5, photo 6: black, shiny, wrinkled or textured leather-like exterior; exact leather type cannot be confirmed from photos.",
        "lining_description": "photo 2-5: black lining or leather-like interior with a zippered pocket; no Coach creed patch or fabric brand label visible.",
        "strap_construction": "photo 1, photo 6: two long narrow black shoulder straps, apparently stitched or attached directly to the bag; attachment construction is only partly visible.",
        "stitching_description": "photo 1, photo 5-6: visible perimeter and strap stitching appears generally even, with some creasing and gathered construction; detailed stress-point stitching is not fully visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0062,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.08,
                "vintage_probability": 0.72,
                "authenticity_confidence": 0.07,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a structured black leather-like shoulder handbag with a vintage-style frame and kiss-lock closure.",
                    "photo 2: interior appears leather-lined or leather-like and includes a zippered pocket.",
                    "photo 6: ruler indicates an approximately 17-inch overall width, consistent with a handbag rather than a small leather good."
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, hangtag, or other Coach branding.",
                    "photo 2: the visible interior has no rectangular sewn Coach creed patch.",
                    "photo 3: the frame closure is a kiss-lock frame rather than a recognizable Coach turnlock.",
                    "photo 3: the bright gold-tone frame and decorative clasp appear generic and plated rather than characteristic solid vintage Coach brass hardware.",
                    "photo 4: the zipper pull has a decorative geometric marking, but no legible Coach or period Coach zipper branding is visible.",
                    "photo 1: the shiny, heavily textured black exterior and pleated frame silhouette do not closely match the catalogued classic Coach glove-tanned styles shown in the reference."
                ],
                "missing_information": [
                    "photo 1-6: no straight-on close-up of every interior wall and pocket seam; a concealed or removed label cannot be ruled out.",
                    "photo 1-6: no close-up of the zipper pull, frame hardware reverse, strap attachment points, or underside leather.",
                    "photo 1-6: no photo of the bottom, back, and all corners.",
                    "seller-stated material, country of manufacture, dimensions, and any interior label information are not provided."
                ],
                "authenticity_concerns": [
                    "photo 1-4: the bag presents as an unbranded vintage-style lookalike with no Coach identifier visible.",
                    "photo 3-4: generic bright gold-tone frame hardware and decorative clasp are inconsistent with the usual hardware profile of classic Coach 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 1, photo 3, photo 4: bright gold-tone rectangular kiss-lock frame with a small decorative central clasp; no legible brand engraving visible.",
                    "leather_description": "photo 1, photo 5, photo 6: black, shiny, wrinkled or textured leather-like exterior; exact leather type cannot be confirmed from photos.",
                    "lining_description": "photo 2-5: black lining or leather-like interior with a zippered pocket; no Coach creed patch or fabric brand label visible.",
                    "strap_construction": "photo 1, photo 6: two long narrow black shoulder straps, apparently stitched or attached directly to the bag; attachment construction is only partly visible.",
                    "stitching_description": "photo 1, photo 5-6: visible perimeter and strap stitching appears generally even, with some creasing and gathered construction; detailed stress-point stitching is not fully visible."
                },
                "possible_model_reasoning": [
                    "The frame kiss-lock, pleating, and large shoulder-bag silhouette are not a strong match for the listed classic Coach models; no Coach model is proposed.",
                    "The absence of a visible creed, serial\/style number, wordmark, or hangtag substantially lowers the Coach likelihood, although a pre-creed Cashin-era bag is theoretically possible.",
                    "The silhouette and hardware more plausibly indicate an unbranded vintage or vintage-style frame handbag than a Coach-made bag.",
                    "Condition: Good; visible exterior creasing and wear, shiny\/possibly over-finished leather surface, and scuffing or tarnish on the frame are present in photos 1, 3, and 5. Interior appears used with light debris or marks in photos 2-5; odor and hidden damage are unknown."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 12,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.03,
                "confidence": 0.7,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 8,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of any maker mark, interior label or stamped patch in close-up raking light",
                    "photo of bottom, corners and side profile for condition cap",
                    "photo of hardware stamps on frame and zipper pull"
                ],
                "negative_evidence": [
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible anywhere",
                    "photo 1: kiss-lock frame closure with thin fixed double shoulder straps - not a Coach classic turnlock \/ dogleash \/ buckle silhouette",
                    "photo 2-4: bright gold-tone plated frame with wear\/tarnish, not solid brass vintage Coach hardware",
                    "photo 1,6: thin smooth black leather with sheen and soft pleated construction, not thick matte glove-tanned cowhide with suede back",
                    "photo 3-4: unbranded zipper pull with no Talon\/YKK\/Coach stamp visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone kiss-lock frame with rectangular clasp; gold-tone coil zipper on interior pocket with unbranded pull; plating wear visible on frame in photos 3-4",
                    "leather_description": "black smooth leather-look with light sheen and grain creasing, thin and soft\/pleated, not thick matte glove-tanned",
                    "lining_description": "black smooth leather-look lining with single zip wall pocket, no creed patch or fabric label visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight edge stitching on straps and trim, thread matched black; no detail of stress-point stitching visible",
                    "strap_construction": "two thin fixed tubular shoulder straps inserted into top edge, not adjustable, no buckles or dogleash clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any of 6 photos despite good interior views where creed would sit - fails Step 3 hard identifiers",
                    "Silhouette is a pleated kiss-frame shoulder bag; Coach Cashin era did use kisslock frames but on structured clutches\/satchels with industrial hardware and striped linings, not this thin-strap soft pleated form",
                    "Construction - thin coated leather, plated frame, unbranded zipper - points to generic department-store vintage-style bag, not Coach",
                    "Condition: Good to Very Good; exterior intact with creasing (photo 1,6), frame plating worn (photo 4), interior lightly soiled (photo 2); bottom\/corners not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.4
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 31209,
            "output_tokens": 962,
            "total_tokens": 32171,
            "estimated_cost_usd": 0.014792
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 33119,
            "output_tokens": 1395,
            "total_tokens": 34514,
            "estimated_cost_usd": 0.00774
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}