Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.1,
    "vintage_probability": 0.215,
    "authenticity_confidence": 0.09,
    "image_quality_score": 0.685,
    "seller_misidentification_probability": 0.1,
    "confidence": 0.715,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 35,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather shoulder bag with an adjustable strap and substantial brown leather construction",
        "photo 1: visible brass-tone strap attachments and buckles are broadly compatible with vintage leather bags",
        "photo 1: genuine leather-appearing shoulder flap bag with brass-tone hardware",
        "photo 1-2: brown leather patina and soft body superficially similar to vintage leather bags"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or recognizable Coach turnlock",
        "photo 2: rear zip pocket and zipper pull show no legible Coach marking",
        "photos 1, 4, and 5: front closure uses two decorative buckle\/loop details rather than a classic Coach turnlock",
        "photos 1-6: construction and silhouette are generic and do not clearly match a catalog Coach classic",
        "photo 6: hardware appears bright and plated-looking rather than clearly solid vintage brass",
        "photo 1: no turnlock present, closure is two decorative buckle straps, not Coach turnlock geometry",
        "photo 1-6: no COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 1-6: no creed patch visible, interior never shown",
        "photo 2: back exterior zip pocket with leather pull tab and inset panel construction not typical of vintage Coach classics",
        "photo 1: thin flat crossbody strap with side-ring attachment, not Coach dogleash or buckle-adjust classic strap"
    ],
    "missing_information": [
        "Interior view, especially the back wall and slip pockets where a creed could be sewn",
        "Close-up photographs of every interior label, stamp, and zipper pull",
        "Bottom, side, and strap-end photographs",
        "Close-up of the hardware and any markings on the strap attachments",
        "Seller-stated dimensions and materials confirmation",
        "photo 1-6: no interior view shown, lining and creed patch unknown",
        "photo 1-6: no creed close-up to read wording or serial",
        "photo 1-6: no hangtag, wordmark, or hardware engraving visible",
        "photo 2: zipper brand on back pocket pull not legible",
        "photo 1-6: no bottom, side, or strap-detail close-ups"
    ],
    "authenticity_concerns": [
        "The bag has no visible Coach identifier and could be an unbranded or lookalike leather bag",
        "The generic buckle-front design does not provide a reliable Coach model match",
        "The visible construction does not establish a consistent Coach era"
    ],
    "possible_model_reasoning": [
        "The rectangular flap shoulder-bag silhouette is not sufficient to identify a Coach model; it lacks the turnlock, creed, and characteristic details needed to support Willis, Court, Station, City Bag, or another catalog match.",
        "No creed or serial is visible, so the era cannot be established from Coach identifiers. The glossy, heavily creased leather and generic buckle construction lean toward a later or non-Coach bag.",
        "Condition: Good; substantial creasing, surface wear, and edge\/corner rubbing are visible in photos 1, 4, and 5. Interior, lining, odor, and strap condition at the fold are unknown.",
        "No Coach catalog match: dual-buckle flap crossbody with back zip pocket does not correspond to City Bag (9790), Willis (9927), Court (9870), Station (5130) or other classics which use turnlock flap; no serial decode possible; Condition: Good to Very Good; surface scuffs and softening visible (photo 1,5), corners lightly rubbed, but interior, bottom and strap fold 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": "Bright brass-tone loop\/buckle-style front hardware, side rings, and zipper hardware are visible; no markings are legible.",
        "leather_description": "Dark brown, glossy, visibly creased and softened leather with substantial wear and uneven surface sheen.",
        "lining_description": "not_visible",
        "strap_construction": "Long adjustable shoulder strap attached at side rings; strap appears narrow and leather, with adjustment hardware not clearly shown.",
        "stitching_description": "Visible perimeter and attachment stitching is generally straight and regular, though fine stitch quality cannot be fully assessed from the available views."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0035,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.12,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.1,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather shoulder bag with an adjustable strap and substantial brown leather construction",
                    "photo 1: visible brass-tone strap attachments and buckles are broadly compatible with vintage leather bags"
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or recognizable Coach turnlock",
                    "photo 2: rear zip pocket and zipper pull show no legible Coach marking",
                    "photos 1, 4, and 5: front closure uses two decorative buckle\/loop details rather than a classic Coach turnlock",
                    "photos 1-6: construction and silhouette are generic and do not clearly match a catalog Coach classic",
                    "photo 6: hardware appears bright and plated-looking rather than clearly solid vintage brass"
                ],
                "missing_information": [
                    "Interior view, especially the back wall and slip pockets where a creed could be sewn",
                    "Close-up photographs of every interior label, stamp, and zipper pull",
                    "Bottom, side, and strap-end photographs",
                    "Close-up of the hardware and any markings on the strap attachments",
                    "Seller-stated dimensions and materials confirmation"
                ],
                "authenticity_concerns": [
                    "The bag has no visible Coach identifier and could be an unbranded or lookalike leather bag",
                    "The generic buckle-front design does not provide a reliable Coach model match",
                    "The visible construction does not establish a consistent Coach era"
                ],
                "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": "Bright brass-tone loop\/buckle-style front hardware, side rings, and zipper hardware are visible; no markings are legible.",
                    "leather_description": "Dark brown, glossy, visibly creased and softened leather with substantial wear and uneven surface sheen.",
                    "lining_description": "not_visible",
                    "strap_construction": "Long adjustable shoulder strap attached at side rings; strap appears narrow and leather, with adjustment hardware not clearly shown.",
                    "stitching_description": "Visible perimeter and attachment stitching is generally straight and regular, though fine stitch quality cannot be fully assessed from the available views."
                },
                "possible_model_reasoning": [
                    "The rectangular flap shoulder-bag silhouette is not sufficient to identify a Coach model; it lacks the turnlock, creed, and characteristic details needed to support Willis, Court, Station, City Bag, or another catalog match.",
                    "No creed or serial is visible, so the era cannot be established from Coach identifiers. The glossy, heavily creased leather and generic buckle construction lean toward a later or non-Coach bag.",
                    "Condition: Good; substantial creasing, surface wear, and edge\/corner rubbing are visible in photos 1, 4, and 5. Interior, lining, odor, and strap condition at the fold are unknown."
                ],
                "confidence": 0.78,
                "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": 0.08,
                "coach_probability": 0.08,
                "confidence": 0.65,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo 1-6: no interior view shown, lining and creed patch unknown",
                    "photo 1-6: no creed close-up to read wording or serial",
                    "photo 1-6: no hangtag, wordmark, or hardware engraving visible",
                    "photo 2: zipper brand on back pocket pull not legible",
                    "photo 1-6: no bottom, side, or strap-detail close-ups"
                ],
                "negative_evidence": [
                    "photo 1: no turnlock present, closure is two decorative buckle straps, not Coach turnlock geometry",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 1-6: no creed patch visible, interior never shown",
                    "photo 2: back exterior zip pocket with leather pull tab and inset panel construction not typical of vintage Coach classics",
                    "photo 1: thin flat crossbody strap with side-ring attachment, not Coach dogleash or buckle-adjust classic strap"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone buckles on front straps and side rings; tarnished dull tone but geometry is buckle, not turnlock; zipper pull with small leather tab, brand not legible",
                    "leather_description": "dark brown full-grain-appearing leather with distressed \/ burnished finish and wrinkled texture, soft slouchy body",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched edge stitching around flap and back zip panel, even but no close-up to assess fully",
                    "strap_construction": "thin flat leather long crossbody shoulder strap attached via metal side rings, appears non-adjustable in photos",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: genuine leather-appearing shoulder flap bag with brass-tone hardware",
                    "photo 1-2: brown leather patina and soft body superficially similar to vintage leather bags"
                ],
                "possible_model_reasoning": [
                    "No Coach catalog match: dual-buckle flap crossbody with back zip pocket does not correspond to City Bag (9790), Willis (9927), Court (9870), Station (5130) or other classics which use turnlock flap; no serial decode possible; Condition: Good to Very Good; surface scuffs and softening visible (photo 1,5), corners lightly rubbed, but interior, bottom and strap fold not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.08,
                "vintage_probability": 0.25
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
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            "output_tokens": 799,
            "total_tokens": 22582,
            "estimated_cost_usd": 0.010631
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 22516,
            "output_tokens": 1214,
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}