Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.025,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.485,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.69,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 10,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a structured brown handbag with a top handle and detachable-looking shoulder strap.",
        "photo 1: Brown leather-like exterior and metallic strap hardware are visible."
    ],
    "negative_evidence": [
        "photo 1: The rectangular hanging tag appears to contain non-COACH lettering rather than a Coach wordmark.",
        "photo 1: No visible Coach creed patch, serial\/style number, horse-and-carriage mark, or recognizable Coach branding.",
        "photo 1: The flap closure and decorative vertical paneling look like generic contemporary fashion-bag construction rather than a documented vintage Coach classic.",
        "photo 1: Lifestyle\/stock-style image provides no interior, bottom, or identifier views.",
        "photo 1: small structured modern top-handle flap crossbody silhouette with no vintage Coach catalog match",
        "photo 1: no turnlock, no brass hardware visible - silver-tone lobster-claw strap clips inconsistent with 1970s-1990s Coach classics",
        "photo 1: smooth uniform brown coated-looking leather with light contrast stitching, not glove-tanned full-grain with patina",
        "photo 1: rectangular hangtag text does not read COACH, no COACH wordmark visible anywhere",
        "photos 1-4: four near-duplicate lifestyle stock-type shots, no interior, bottom, creed or hardware detail views"
    ],
    "missing_information": [
        "Straight-on interior photo, including the back wall, pockets, and any creed or fabric tag.",
        "Close-up photos of the hanging tag on both sides.",
        "Close-up of the flap closure, hardware, zipper pulls, and strap attachments.",
        "Bottom, side, and back views, plus seller-stated dimensions and material composition.",
        "interior views including creed patch area, lining, and pockets not shown - photo 1 only shows front exterior worn",
        "close-up of hangtag text to confirm brand - photo 1 tag text illegible",
        "back, side, bottom and corner views not shown",
        "hardware close-ups of clips, handles and closure not shown",
        "seller-stated dimensions, materials and country of manufacture"
    ],
    "authenticity_concerns": [
        "photo 1: The bag has a generic branded-looking hangtag but no visible Coach identifiers; it should not be treated as Coach based on silhouette alone.",
        "photo 1: The supplied image appears to be a staged\/lifestyle product image, limiting verification of construction and branding.",
        "photo 1: no Coach identifiers visible - no creed, no COACH wordmark, no horse-and-carriage, no solid-brass vintage hardware to support Coach manufacture"
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because no Coach identifier or distinctive documented Coach silhouette is visible.",
        "The structured top-handle crossbody form is common among modern unbranded handbags and is insufficient for Coach attribution.",
        "Condition cannot be reliably graded from the single staged photo; visible exterior appears unused or lightly used, but corners and interior are not shown.",
        "No Coach model fits: modern flap top-handle crossbody with silver hardware and contrast stitching does not match City Bag (9790), Willis (9927), Court (9870), Station (5130) or other classics in proportions, closure or hardware",
        "Era reasoning: construction, hardware tone, finish and lifestyle presentation indicate modern fast-fashion, non-Coach; estimated_era modern (2000s+), non-Coach",
        "Condition: appears new\/unworn in photo 1 but cannot grade - only one exterior angle shown, no corners, interior or strap wear visible"
    ],
    "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": true,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photo 1: Gold-tone strap clips and small hardware are visible; the flap has a strap-like decorative closure, but no Coach-marked hardware is legible.",
        "leather_description": "photo 1: Smooth brown leather-like or coated material is visible; natural leather type cannot be established from this image.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: Long adjustable-looking shoulder strap attached by gold-tone clips; short rounded top handle.",
        "stitching_description": "photo 1: Visible perimeter and panel stitching appears generally even, though the image is not suitable for detailed construction authentication."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0045,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.62,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a structured brown handbag with a top handle and detachable-looking shoulder strap.",
                    "photo 1: Brown leather-like exterior and metallic strap hardware are visible."
                ],
                "negative_evidence": [
                    "photo 1: The rectangular hanging tag appears to contain non-COACH lettering rather than a Coach wordmark.",
                    "photo 1: No visible Coach creed patch, serial\/style number, horse-and-carriage mark, or recognizable Coach branding.",
                    "photo 1: The flap closure and decorative vertical paneling look like generic contemporary fashion-bag construction rather than a documented vintage Coach classic.",
                    "photo 1: Lifestyle\/stock-style image provides no interior, bottom, or identifier views."
                ],
                "missing_information": [
                    "Straight-on interior photo, including the back wall, pockets, and any creed or fabric tag.",
                    "Close-up photos of the hanging tag on both sides.",
                    "Close-up of the flap closure, hardware, zipper pulls, and strap attachments.",
                    "Bottom, side, and back views, plus seller-stated dimensions and material composition."
                ],
                "authenticity_concerns": [
                    "photo 1: The bag has a generic branded-looking hangtag but no visible Coach identifiers; it should not be treated as Coach based on silhouette alone.",
                    "photo 1: The supplied image appears to be a staged\/lifestyle product image, limiting verification of construction and branding."
                ],
                "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": true,
                    "hardware_description": "photo 1: Gold-tone strap clips and small hardware are visible; the flap has a strap-like decorative closure, but no Coach-marked hardware is legible.",
                    "leather_description": "photo 1: Smooth brown leather-like or coated material is visible; natural leather type cannot be established from this image.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: Long adjustable-looking shoulder strap attached by gold-tone clips; short rounded top handle.",
                    "stitching_description": "photo 1: Visible perimeter and panel stitching appears generally even, though the image is not suitable for detailed construction authentication."
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because no Coach identifier or distinctive documented Coach silhouette is visible.",
                    "The structured top-handle crossbody form is common among modern unbranded handbags and is insufficient for Coach attribution.",
                    "Condition cannot be reliably graded from the single staged photo; visible exterior appears unused or lightly used, but corners and interior are not shown."
                ],
                "confidence": 0.58,
                "recommended_max_bid": 15,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1: no Coach identifiers visible - no creed, no COACH wordmark, no horse-and-carriage, no solid-brass vintage hardware to support Coach manufacture"
                ],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.8,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.35,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "interior views including creed patch area, lining, and pockets not shown - photo 1 only shows front exterior worn",
                    "close-up of hangtag text to confirm brand - photo 1 tag text illegible",
                    "back, side, bottom and corner views not shown",
                    "hardware close-ups of clips, handles and closure not shown",
                    "seller-stated dimensions, materials and country of manufacture"
                ],
                "negative_evidence": [
                    "photo 1: small structured modern top-handle flap crossbody silhouette with no vintage Coach catalog match",
                    "photo 1: no turnlock, no brass hardware visible - silver-tone lobster-claw strap clips inconsistent with 1970s-1990s Coach classics",
                    "photo 1: smooth uniform brown coated-looking leather with light contrast stitching, not glove-tanned full-grain with patina",
                    "photo 1: rectangular hangtag text does not read COACH, no COACH wordmark visible anywhere",
                    "photos 1-4: four near-duplicate lifestyle stock-type shots, no interior, bottom, creed or hardware detail views"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": true,
                    "hardware_description": "photo 1: silver-tone lobster-claw clips for crossbody strap; no turnlock visible; top-handle attachments not detailed",
                    "leather_description": "photo 1: smooth medium-brown uniform-finish leather-like material with light contrast edge stitching, appears coated\/synthetic, not vintage glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "photo 1: even light-colored contrast machine stitching around flap and body edges",
                    "strap_construction": "photo 1: short rolled top handles plus thin detachable crossbody strap on silver-tone clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: modern flap top-handle crossbody with silver hardware and contrast stitching does not match City Bag (9790), Willis (9927), Court (9870), Station (5130) or other classics in proportions, closure or hardware",
                    "Era reasoning: construction, hardware tone, finish and lifestyle presentation indicate modern fast-fashion, non-Coach; estimated_era modern (2000s+), non-Coach",
                    "Condition: appears new\/unworn in photo 1 but cannot grade - only one exterior angle shown, no corners, interior or strap wear visible"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18092,
            "output_tokens": 779,
            "total_tokens": 18871,
            "estimated_cost_usd": 0.009106
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18512,
            "output_tokens": 1484,
            "total_tokens": 19996,
            "estimated_cost_usd": 0.00489
        }
    ]
}