Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.025,
    "vintage_probability": 0.025,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.45,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.665,
    "recommended_max_bid": 10,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The bag has a bamboo top handle and bamboo-style central clasp, features not characteristic of the listed vintage Coach models.",
        "photo 1: No visible COACH wordmark, horse-and-carriage, creed patch, serial\/style number, or Coach hangtag.",
        "photo 1: The smooth glossy black exterior and bright gold-tone hardware appear more consistent with a modern fashion handbag than vintage glove-tanned Coach leather and solid brass construction.",
        "photo 1: The seller identifies the brand as unbranded; this is weak contextual evidence only, not an authentication indicator.",
        "photo 1: bamboo top handle and bamboo toggle closure - Coach vintage classics use brass turnlock, never bamboo",
        "photo 1: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 1: new-in-wrap presentation with foam-wrapped strap, dust bag, protective bar on handle suggests modern new fast-fashion \/ inspired bag",
        "photo 1: silhouette - small structured flap top-handle with bamboo hardware matches Gucci Bamboo type, not any Coach catalog style"
    ],
    "missing_information": [
        "Straight-on interior photo showing the back wall, lining, labels, and any creed patch.",
        "Close-up photos of all hardware, zipper pull, clasp, and strap attachments.",
        "Photos of the bottom, corners, side profile, and full strap.",
        "Any interior or exterior branding stamp and material information.",
        "interior views including creed patch \/ lining \/ fabric tags not shown (photo 1 only exterior)",
        "close-up of hardware engravings \/ zipper brand not shown",
        "bottom, back, side views and dimensions not shown",
        "hangtag both faces not shown"
    ],
    "authenticity_concerns": [
        "photo 1: The visible bamboo-handle and bamboo-clasp design does not match a recognizable Coach vintage silhouette.",
        "photo 1: No Coach identifiers are visible, leaving the item unsupported as Coach and more consistent with a generic lookalike handbag.",
        "photo 1: bamboo top handle and bamboo toggle closure are inconsistent with Coach classic construction and hardware",
        "photo 1: no Coach identifiers visible to support Coach manufacture; silhouette evokes Gucci Bamboo 1947 type, not Coach catalog"
    ],
    "possible_model_reasoning": [
        "photo 1: The small structured top-handle silhouette with bamboo handle and central bamboo closure does not correspond to a likely catalog Coach model.",
        "photo 1: No visible identifier supports dating or a Coach model match.",
        "Condition: Not gradable beyond apparent unused or carefully presented condition; the interior, bottom, corners, and strap condition are not adequately shown.",
        "Not a Coach silhouette: bamboo-handle flap with bamboo toggle has no match in Coach classic or modern catalog (Willis, Court, Station, Dinky, etc. all use brass turnlock)",
        "No hard identifiers (creed, serial, wordmark, hangtag, stamped hardware) visible in sole photo to support Coach",
        "Condition: appears New\/NWOT based on foam wrapping and protective bar (photo 1), but obscured by emoji and text overlay so grade is low-confidence"
    ],
    "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: Bright gold-tone strap fittings and clasp hardware; central closure appears bamboo-style rather than a Coach turnlock. Zipper hardware is not clearly visible.",
        "leather_description": "photo 1: Smooth glossy black exterior; exact material cannot be confirmed from the photo.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: Detachable strap with gold-tone clip attachments; strap is partially covered by packaging and overlays.",
        "stitching_description": "photo 1: Some edge stitching is visible around the body and strap, but detail is insufficient to assess consistency."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.002,
    "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": 0.02,
                "image_quality_score": 0.45,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The bag has a bamboo top handle and bamboo-style central clasp, features not characteristic of the listed vintage Coach models.",
                    "photo 1: No visible COACH wordmark, horse-and-carriage, creed patch, serial\/style number, or Coach hangtag.",
                    "photo 1: The smooth glossy black exterior and bright gold-tone hardware appear more consistent with a modern fashion handbag than vintage glove-tanned Coach leather and solid brass construction.",
                    "photo 1: The seller identifies the brand as unbranded; this is weak contextual evidence only, not an authentication indicator."
                ],
                "missing_information": [
                    "Straight-on interior photo showing the back wall, lining, labels, and any creed patch.",
                    "Close-up photos of all hardware, zipper pull, clasp, and strap attachments.",
                    "Photos of the bottom, corners, side profile, and full strap.",
                    "Any interior or exterior branding stamp and material information."
                ],
                "authenticity_concerns": [
                    "photo 1: The visible bamboo-handle and bamboo-clasp design does not match a recognizable Coach vintage silhouette.",
                    "photo 1: No Coach identifiers are visible, leaving the item unsupported as Coach and more consistent with a generic lookalike handbag."
                ],
                "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: Bright gold-tone strap fittings and clasp hardware; central closure appears bamboo-style rather than a Coach turnlock. Zipper hardware is not clearly visible.",
                    "leather_description": "photo 1: Smooth glossy black exterior; exact material cannot be confirmed from the photo.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: Detachable strap with gold-tone clip attachments; strap is partially covered by packaging and overlays.",
                    "stitching_description": "photo 1: Some edge stitching is visible around the body and strap, but detail is insufficient to assess consistency."
                },
                "possible_model_reasoning": [
                    "photo 1: The small structured top-handle silhouette with bamboo handle and central bamboo closure does not correspond to a likely catalog Coach model.",
                    "photo 1: No visible identifier supports dating or a Coach model match.",
                    "Condition: Not gradable beyond apparent unused or carefully presented condition; the interior, bottom, corners, and strap condition are not adequately shown."
                ],
                "confidence": 0.55,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1: bamboo top handle and bamboo toggle closure are inconsistent with Coach classic construction and hardware",
                    "photo 1: no Coach identifiers visible to support Coach manufacture; silhouette evokes Gucci Bamboo 1947 type, not Coach catalog"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.45,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "interior views including creed patch \/ lining \/ fabric tags not shown (photo 1 only exterior)",
                    "close-up of hardware engravings \/ zipper brand not shown",
                    "bottom, back, side views and dimensions not shown",
                    "hangtag both faces not shown"
                ],
                "negative_evidence": [
                    "photo 1: bamboo top handle and bamboo toggle closure - Coach vintage classics use brass turnlock, never bamboo",
                    "photo 1: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 1: new-in-wrap presentation with foam-wrapped strap, dust bag, protective bar on handle suggests modern new fast-fashion \/ inspired bag",
                    "photo 1: silhouette - small structured flap top-handle with bamboo hardware matches Gucci Bamboo type, not any Coach catalog style"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone metal with bamboo top handle and bamboo toggle closure; detachable strap hardware in foreground",
                    "leather_description": "black smooth leather with slight sheen, appears coated; texture obscured by lighting",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible",
                    "strap_construction": "detachable shoulder strap, foam-wrapped in photo 1, attachment details obscured",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Not a Coach silhouette: bamboo-handle flap with bamboo toggle has no match in Coach classic or modern catalog (Willis, Court, Station, Dinky, etc. all use brass turnlock)",
                    "No hard identifiers (creed, serial, wordmark, hangtag, stamped hardware) visible in sole photo to support Coach",
                    "Condition: appears New\/NWOT based on foam wrapping and protective bar (photo 1), but obscured by emoji and text overlay so grade is low-confidence"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16834,
            "output_tokens": 721,
            "total_tokens": 17555,
            "estimated_cost_usd": 0.008464
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17202,
            "output_tokens": 1368,
            "total_tokens": 18570,
            "estimated_cost_usd": 0.004535
        }
    ]
}