Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.02,
    "vintage_probability": 0.025,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.84,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.915,
    "recommended_max_bid": 10,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: bag is a soft cotton-canvas messenger with utilitarian pockets and a textile crossbody strap, unlike the leather construction typical of the vintage Coach target population.",
        "photo 1: visible rectangular front label does not legibly show COACH or a Coach horse-and-carriage.",
        "photo 5: interior shows a separate white fabric brand label and dark textile-looking lining, not a sewn Coach leather creed patch.",
        "photo 1: closure uses snaps and a central webbing strap rather than a vintage Coach turnlock.",
        "photo 3: back and strap construction are nylon\/webbing and canvas, with no visible Coach identifier.",
        "listing text: seller describes high-density cotton canvas and a brand-new military-style messenger, which is consistent with a contemporary generic bag.",
        "photo 1: high-density cotton canvas body with fabric webbing strap, not glove-tanned leather",
        "photo 1: snap-button closure with leather-like brand patch reading GOTIM, no brass turnlock with Coach geometry",
        "photo 5: interior fabric lining with white woven brand label, not unlined suede or Coach creed patch",
        "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "seller text states full cotton canvas and brand new military-style messenger, inconsistent with vintage Coach classics"
    ],
    "missing_information": [
        "photo 5: the interior label is too small to identify its brand text confidently; request a straight-on close-up.",
        "request close-ups of the front label, all hardware, zipper pulls, and interior labels if brand attribution is important.",
        "request a clear bottom, side, and strap-attachment view for construction and condition verification."
    ],
    "authenticity_concerns": [
        "photo 1: the design and materials are inconsistent with a vintage Coach leather messenger; it appears to be a generic or other-brand canvas bag rather than a Coach lookalike with a transplanted identifier.",
        "photo 5: the visible interior fabric label is not a Coach creed and no serial\/style number is visible."
    ],
    "possible_model_reasoning": [
        "photo 1: no Coach model is a plausible match; the flap, webbing strap, snap pockets, and canvas body fit a contemporary generic military-style messenger.",
        "photo 5: no readable creed, serial, or Coach wordmark is visible. Condition appears New\/brand new based on listing and clean product photos, but actual condition cannot be independently verified from stock-style images.",
        "Silhouette is a modern canvas military-style messenger with flap plus snap and front snap pockets, not a Coach catalog style",
        "Materials of cotton canvas plus webbing strap plus fabric lining rule out 1970s-1990s glove-tanned Coach classics per triage rule",
        "Visible GOTIM brand patch (photo 1-2) and interior woven label (photo 5) identify a non-Coach maker",
        "Condition: New per seller text and clean canvas in photos 1-4; no vintage wear to grade"
    ],
    "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: small metal snaps, strap adjuster, and clip hardware are visible; no Coach engraving is legible. photo 5: zipper pulls appear leather-like or fabric-tabbed.",
        "leather_description": "photo 1: exterior appears to be black garment-washed cotton canvas; no leather body is visible.",
        "lining_description": "photo 5: dark textile-looking interior lining and multiple zippered compartments are visible; seller states leather lining, but this is not visually confirmed.",
        "strap_construction": "photo 1 and photo 3: adjustable tan webbing crossbody strap attached at side hardware; no Coach-style leather strap construction visible.",
        "stitching_description": "photo 1 and photo 2: visible machine stitching is generally even on the canvas and pocket edges; close stress-point inspection is unavailable."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0004,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: bag is a soft cotton-canvas messenger with utilitarian pockets and a textile crossbody strap, unlike the leather construction typical of the vintage Coach target population.",
                    "photo 1: visible rectangular front label does not legibly show COACH or a Coach horse-and-carriage.",
                    "photo 5: interior shows a separate white fabric brand label and dark textile-looking lining, not a sewn Coach leather creed patch.",
                    "photo 1: closure uses snaps and a central webbing strap rather than a vintage Coach turnlock.",
                    "photo 3: back and strap construction are nylon\/webbing and canvas, with no visible Coach identifier.",
                    "listing text: seller describes high-density cotton canvas and a brand-new military-style messenger, which is consistent with a contemporary generic bag."
                ],
                "missing_information": [
                    "photo 5: the interior label is too small to identify its brand text confidently; request a straight-on close-up.",
                    "request close-ups of the front label, all hardware, zipper pulls, and interior labels if brand attribution is important.",
                    "request a clear bottom, side, and strap-attachment view for construction and condition verification."
                ],
                "authenticity_concerns": [
                    "photo 1: the design and materials are inconsistent with a vintage Coach leather messenger; it appears to be a generic or other-brand canvas bag rather than a Coach lookalike with a transplanted identifier.",
                    "photo 5: the visible interior fabric label is not a Coach creed and no serial\/style number is visible."
                ],
                "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: small metal snaps, strap adjuster, and clip hardware are visible; no Coach engraving is legible. photo 5: zipper pulls appear leather-like or fabric-tabbed.",
                    "leather_description": "photo 1: exterior appears to be black garment-washed cotton canvas; no leather body is visible.",
                    "lining_description": "photo 5: dark textile-looking interior lining and multiple zippered compartments are visible; seller states leather lining, but this is not visually confirmed.",
                    "strap_construction": "photo 1 and photo 3: adjustable tan webbing crossbody strap attached at side hardware; no Coach-style leather strap construction visible.",
                    "stitching_description": "photo 1 and photo 2: visible machine stitching is generally even on the canvas and pocket edges; close stress-point inspection is unavailable."
                },
                "possible_model_reasoning": [
                    "photo 1: no Coach model is a plausible match; the flap, webbing strap, snap pockets, and canvas body fit a contemporary generic military-style messenger.",
                    "photo 5: no readable creed, serial, or Coach wordmark is visible. Condition appears New\/brand new based on listing and clean product photos, but actual condition cannot be independently verified from stock-style images."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.92,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.8,
                "is_handbag_probability": 0.98,
                "missing_information": [],
                "negative_evidence": [
                    "photo 1: high-density cotton canvas body with fabric webbing strap, not glove-tanned leather",
                    "photo 1: snap-button closure with leather-like brand patch reading GOTIM, no brass turnlock with Coach geometry",
                    "photo 5: interior fabric lining with white woven brand label, not unlined suede or Coach creed patch",
                    "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "seller text states full cotton canvas and brand new military-style messenger, inconsistent with vintage Coach classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone snap buttons and small rivets; no turnlock, no solid brass hardware, no COACH stamping visible",
                    "leather_description": "no leather body; black garment-washed high-density cotton canvas with small brown faux-leather brand patch",
                    "lining_description": "dark fabric lining in main zip compartment, not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight machine stitching around flap and pockets, thread matched to canvas",
                    "strap_construction": "tan woven webbing crossbody strap, fixed\/adjustable with metal hardware, not leather with brass dogleash clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Silhouette is a modern canvas military-style messenger with flap plus snap and front snap pockets, not a Coach catalog style",
                    "Materials of cotton canvas plus webbing strap plus fabric lining rule out 1970s-1990s glove-tanned Coach classics per triage rule",
                    "Visible GOTIM brand patch (photo 1-2) and interior woven label (photo 5) identify a non-Coach maker",
                    "Condition: New per seller text and clean canvas in photos 1-4; no vintage wear to grade"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17765,
            "output_tokens": 828,
            "total_tokens": 18593,
            "estimated_cost_usd": 0.009093
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18274,
            "output_tokens": 1200,
            "total_tokens": 19474,
            "estimated_cost_usd": 0.004615
        }
    ]
}