Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.03,
    "vintage_probability": 0.03,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.73,
    "seller_misidentification_probability": 0.03,
    "confidence": 0.855,
    "recommended_max_bid": 9,
    "estimated_resale_low": 10,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a handbag with a framed kiss-lock opening and detachable-looking shoulder straps.",
        "photo 2: The bag has a vintage-inspired frame silhouette and center seam, but no visible Coach-specific identifier."
    ],
    "negative_evidence": [
        "photo 1: Bright silver-tone plated frame hardware is inconsistent with the solid brass normally seen on classic vintage Coach frame bags.",
        "photo 1: The leather-like surface appears thin and highly uniform, with a synthetic or coated appearance rather than glove-tanned full-grain leather.",
        "photo 1: No Coach wordmark, horse-and-carriage, leather hangtag, creed patch, or serial is visible.",
        "photo 2: No Coach branding or creed is visible on the reverse; the construction appears generic and product-photographed rather than identifiable as Coach.",
        "listing data: Seller lists the brand as Unbranded and provides no Coach-specific details; this is weak contextual evidence only.",
        "photo 1: silver-tone kisslock frame and hardware, not vintage Coach solid brass",
        "photo 1: black smooth material with sheen and white contrast center stitching, not glove-tanned cowhide with tone-matched stitching",
        "photo 1-2: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
        "photo 2: thin rolled top handle with silver end caps and flat crossbody strap, not Coach buckle-adjust or dogleash construction",
        "photo 1-2: new-looking fast-fashion kisslock crossbody silhouette with center seam, not matching catalog Cashin kisslock shapes"
    ],
    "missing_information": [
        "Interior view, including any sewn leather creed patch or fabric label.",
        "Close-up of the frame, clasp, strap attachments, and any zipper or hardware stamps.",
        "Bottom, side, and corner views to evaluate material and construction.",
        "Actual item photographs rather than only isolated product-style images.",
        "Seller-stated dimensions and material composition.",
        "photo 1-2: interior not shown, lining and creed patch unknown",
        "photo 1-2: no creed close-up or Made-in line to verify maker",
        "photo 1-2: no hardware engravings or zipper brand shown",
        "photo 1-2: no bottom, side, or scale view"
    ],
    "authenticity_concerns": [
        "The generic silhouette, silver-tone hardware, and apparent synthetic material are consistent with an unbranded Coach-style bag rather than a Coach-made vintage bag.",
        "The photos do not show any identifier that could support Coach manufacture; authenticity cannot be established from silhouette alone."
    ],
    "possible_model_reasoning": [
        "The kiss-lock frame resembles generic vintage-inspired frame handbags and does not closely identify a listed Coach model.",
        "Coach Cashin-era frame bags can use kiss-lock constructions, but this bag's silver-tone hardware, apparent modern synthetic material, and absent Coach identifiers weigh strongly against that attribution.",
        "Condition: Not reliably gradable because only clean product-style front and back views are provided; interior, corners, hardware wear, and odor are unknown.",
        "Kisslock frame is seen on 1960s Cashin bags, but this bag's silver-tone hardware, synthetic-looking leather, contrast stitching, center seam and modern handle\/strap construction do not match Cashin or any classic Coach catalog style",
        "No Coach identifiers visible in photo 1-2; identification as Coach would require creed, wordmark, brass hardware and unlined glove-tanned construction, none present",
        "Condition: appears New\/unused stock-type photos on white background, but condition grading capped without interior\/bottom views"
    ],
    "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: Silver-tone metal kiss-lock frame with two spherical clasp knobs, rectangular frame edging, and side strap hardware; no branding visible.",
        "leather_description": "photo 1: Black, smooth, glossy leather-like material with pronounced uniformity and some surface wrinkling; genuine leather versus synthetic material is not confirmed.",
        "lining_description": "not_visible",
        "strap_construction": "photos 1-2: Two narrow black straps\/handles attached at the frame sides; one appears arranged as a shoulder strap, with silver-tone attachment hardware. Full construction and adjustability are not visible.",
        "stitching_description": "photos 1-2: Visible contrasting light stitching runs vertically down the center front and back; other seams are not sufficiently shown for detailed assessment."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0025,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.04,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.04,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a handbag with a framed kiss-lock opening and detachable-looking shoulder straps.",
                    "photo 2: The bag has a vintage-inspired frame silhouette and center seam, but no visible Coach-specific identifier."
                ],
                "negative_evidence": [
                    "photo 1: Bright silver-tone plated frame hardware is inconsistent with the solid brass normally seen on classic vintage Coach frame bags.",
                    "photo 1: The leather-like surface appears thin and highly uniform, with a synthetic or coated appearance rather than glove-tanned full-grain leather.",
                    "photo 1: No Coach wordmark, horse-and-carriage, leather hangtag, creed patch, or serial is visible.",
                    "photo 2: No Coach branding or creed is visible on the reverse; the construction appears generic and product-photographed rather than identifiable as Coach.",
                    "listing data: Seller lists the brand as Unbranded and provides no Coach-specific details; this is weak contextual evidence only."
                ],
                "missing_information": [
                    "Interior view, including any sewn leather creed patch or fabric label.",
                    "Close-up of the frame, clasp, strap attachments, and any zipper or hardware stamps.",
                    "Bottom, side, and corner views to evaluate material and construction.",
                    "Actual item photographs rather than only isolated product-style images.",
                    "Seller-stated dimensions and material composition."
                ],
                "authenticity_concerns": [
                    "The generic silhouette, silver-tone hardware, and apparent synthetic material are consistent with an unbranded Coach-style bag rather than a Coach-made vintage bag.",
                    "The photos do not show any identifier that could support Coach manufacture; authenticity cannot be established from silhouette alone."
                ],
                "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: Silver-tone metal kiss-lock frame with two spherical clasp knobs, rectangular frame edging, and side strap hardware; no branding visible.",
                    "leather_description": "photo 1: Black, smooth, glossy leather-like material with pronounced uniformity and some surface wrinkling; genuine leather versus synthetic material is not confirmed.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1-2: Two narrow black straps\/handles attached at the frame sides; one appears arranged as a shoulder strap, with silver-tone attachment hardware. Full construction and adjustability are not visible.",
                    "stitching_description": "photos 1-2: Visible contrasting light stitching runs vertically down the center front and back; other seams are not sufficiently shown for detailed assessment."
                },
                "possible_model_reasoning": [
                    "The kiss-lock frame resembles generic vintage-inspired frame handbags and does not closely identify a listed Coach model.",
                    "Coach Cashin-era frame bags can use kiss-lock constructions, but this bag's silver-tone hardware, apparent modern synthetic material, and absent Coach identifiers weigh strongly against that attribution.",
                    "Condition: Not reliably gradable because only clean product-style front and back views are provided; interior, corners, hardware wear, and odor are unknown."
                ],
                "confidence": 0.86,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1-2: interior not shown, lining and creed patch unknown",
                    "photo 1-2: no creed close-up or Made-in line to verify maker",
                    "photo 1-2: no hardware engravings or zipper brand shown",
                    "photo 1-2: no bottom, side, or scale view"
                ],
                "negative_evidence": [
                    "photo 1: silver-tone kisslock frame and hardware, not vintage Coach solid brass",
                    "photo 1: black smooth material with sheen and white contrast center stitching, not glove-tanned cowhide with tone-matched stitching",
                    "photo 1-2: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
                    "photo 2: thin rolled top handle with silver end caps and flat crossbody strap, not Coach buckle-adjust or dogleash construction",
                    "photo 1-2: new-looking fast-fashion kisslock crossbody silhouette with center seam, not matching catalog Cashin kisslock shapes"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone kisslock frame with ball clasps, silver end caps and rings; bright plated appearance, not solid brass",
                    "leather_description": "black smooth material with slight sheen and grained texture, looks like faux\/PU leather, not matte glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "white contrast straight stitching down center front and back; perimeter stitching not clearly visible",
                    "strap_construction": "short rolled top handle attached with metal caps\/rings plus longer flat crossbody shoulder strap",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Kisslock frame is seen on 1960s Cashin bags, but this bag's silver-tone hardware, synthetic-looking leather, contrast stitching, center seam and modern handle\/strap construction do not match Cashin or any classic Coach catalog style",
                    "No Coach identifiers visible in photo 1-2; identification as Coach would require creed, wordmark, brass hardware and unlined glove-tanned construction, none present",
                    "Condition: appears New\/unused stock-type photos on white background, but condition grading capped without interior\/bottom views"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18558,
            "output_tokens": 859,
            "total_tokens": 19417,
            "estimated_cost_usd": 0.009485
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 19075,
            "output_tokens": 1280,
            "total_tokens": 20355,
            "estimated_cost_usd": 0.004839
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}