Vintage Coach Hunter

{
    "is_handbag_probability": 0.94,
    "coach_probability": 0.02,
    "vintage_probability": 0.04,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.84,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.91,
    "recommended_max_bid": 9,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: front exterior is clearly embossed CHRISTIE'S INTERNATIONAL REAL ESTATE, not COACH.",
        "photo 3: close-up confirms the Christie's branding and shows no Coach wordmark, horse-and-carriage, or creed.",
        "photos 1-2: zippered attache\/briefcase silhouette with modern gold-tone perimeter zipper is not a recognizable vintage Coach classic model.",
        "photo 4: fabric-lined interior and contemporary structured construction are inconsistent with the unlined glove-tanned construction of many classic vintage Coach bags.",
        "photos 5-6: visible edge and corner wear, including material loss and peeling near the side seams.",
        "photo 1, photo 3: exterior brand is embossed CHRISTIE'S INTERNATIONAL REAL ESTATE, not COACH or horse-and-carriage",
        "photo 1, photo 2, photo 4: zip-around attache \/ document-bag silhouette with twin top handles; no Coach turnlock, flap, or catalog classic shape",
        "photo 4: fabric-lined interior with leather-trim pocket, not unlined glove-tanned suede-back interior of vintage Coach classics",
        "photo 1-6: no creed patch, no COACH wordmark, no hangtag, no solid-brass vintage hardware visible",
        "photo 5, photo 6: edge wear exposing light base \/ bonded coating at piping, inconsistent with vintage full-grain glove-tanned leather"
    ],
    "missing_information": [
        "photo 4: interior brand or manufacturing label is not shown clearly enough to identify the maker beyond the visible Christie's branding.",
        "photo 4: zipper-pull markings and any interior serial or care tag are not visible.",
        "seller-stated dimensions and material composition are not provided.",
        "photo of any maker \/ country \/ content label inside pockets or seams to confirm promotional manufacturer",
        "photo of zipper-pull brand stamp if any",
        "seller-stated dimensions for scale (not provided)"
    ],
    "authenticity_concerns": [
        "photo 1: the visible maker branding is Christie's International Real Estate, so this should not be treated as a Coach bag.",
        "photo 4: modern lined construction and perimeter zipper do not match the expected construction of the likely vintage Coach candidates."
    ],
    "possible_model_reasoning": [
        "The rectangular zippered attache shape is a generic modern business or laptop bag, not a close match for the listed vintage Coach silhouettes.",
        "Condition: Good to Fair; the exterior is generally intact but photos 5-6 show substantial peeling or edge damage at the corners and side seams. The interior appears usable in photo 4, but odor and hidden damage are unknown.",
        "No Coach identifier to decode; silhouette is corporate-promotional zip attache for Christie's International Real Estate, not a Coach catalog style from 1970s-2000s",
        "Construction - fabric lining, bright zip hardware, coated smooth leather, top-handle attache form - points to modern non-Coach promotional bag",
        "Condition: Good; photo 5 and photo 6 show rubbing and coating loss exposing light underlayer at side piping and corners, otherwise body clean"
    ],
    "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": "photos 1, 3, 5: gold-tone perimeter zipper with multiple zipper pulls; no Coach-stamped hardware visible.",
        "leather_description": "photos 1-2, 5-6: tan smooth leather or leather-like exterior with tonal leather handles; material is not verifiable from photos alone.",
        "lining_description": "photo 4: light fabric lining with a large interior leather or leather-like pocket, both embossed with Christie's branding.",
        "strap_construction": "photos 1-2, 4: two fixed rolled or padded top handles attached with stitched leather tabs; no shoulder strap visible.",
        "stitching_description": "photos 1-2, 5-6: generally regular tonal stitching, with visible edge separation or peeling at the side and corner areas."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0012,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.9,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: front exterior is clearly embossed CHRISTIE'S INTERNATIONAL REAL ESTATE, not COACH.",
                    "photo 3: close-up confirms the Christie's branding and shows no Coach wordmark, horse-and-carriage, or creed.",
                    "photos 1-2: zippered attache\/briefcase silhouette with modern gold-tone perimeter zipper is not a recognizable vintage Coach classic model.",
                    "photo 4: fabric-lined interior and contemporary structured construction are inconsistent with the unlined glove-tanned construction of many classic vintage Coach bags.",
                    "photos 5-6: visible edge and corner wear, including material loss and peeling near the side seams."
                ],
                "missing_information": [
                    "photo 4: interior brand or manufacturing label is not shown clearly enough to identify the maker beyond the visible Christie's branding.",
                    "photo 4: zipper-pull markings and any interior serial or care tag are not visible.",
                    "seller-stated dimensions and material composition are not provided."
                ],
                "authenticity_concerns": [
                    "photo 1: the visible maker branding is Christie's International Real Estate, so this should not be treated as a Coach bag.",
                    "photo 4: modern lined construction and perimeter zipper do not match the expected construction of the likely vintage Coach candidates."
                ],
                "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": "photos 1, 3, 5: gold-tone perimeter zipper with multiple zipper pulls; no Coach-stamped hardware visible.",
                    "leather_description": "photos 1-2, 5-6: tan smooth leather or leather-like exterior with tonal leather handles; material is not verifiable from photos alone.",
                    "lining_description": "photo 4: light fabric lining with a large interior leather or leather-like pocket, both embossed with Christie's branding.",
                    "strap_construction": "photos 1-2, 4: two fixed rolled or padded top handles attached with stitched leather tabs; no shoulder strap visible.",
                    "stitching_description": "photos 1-2, 5-6: generally regular tonal stitching, with visible edge separation or peeling at the side and corner areas."
                },
                "possible_model_reasoning": [
                    "The rectangular zippered attache shape is a generic modern business or laptop bag, not a close match for the listed vintage Coach silhouettes.",
                    "Condition: Good to Fair; the exterior is generally intact but photos 5-6 show substantial peeling or edge damage at the corners and side seams. The interior appears usable in photo 4, but odor and hidden damage are unknown."
                ],
                "confidence": 0.94,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.78,
                "is_handbag_probability": 0.9,
                "missing_information": [
                    "photo of any maker \/ country \/ content label inside pockets or seams to confirm promotional manufacturer",
                    "photo of zipper-pull brand stamp if any",
                    "seller-stated dimensions for scale (not provided)"
                ],
                "negative_evidence": [
                    "photo 1, photo 3: exterior brand is embossed CHRISTIE'S INTERNATIONAL REAL ESTATE, not COACH or horse-and-carriage",
                    "photo 1, photo 2, photo 4: zip-around attache \/ document-bag silhouette with twin top handles; no Coach turnlock, flap, or catalog classic shape",
                    "photo 4: fabric-lined interior with leather-trim pocket, not unlined glove-tanned suede-back interior of vintage Coach classics",
                    "photo 1-6: no creed patch, no COACH wordmark, no hangtag, no solid-brass vintage hardware visible",
                    "photo 5, photo 6: edge wear exposing light base \/ bonded coating at piping, inconsistent with vintage full-grain glove-tanned leather"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone zip-around zipper with dual pulls around three sides; tone is bright plated, not aged solid brass; no COACH stamping visible",
                    "leather_description": "smooth tan \/ camel leather-look with uniform coated surface; no glove-tanned grain, patina, scars or wrinkles visible",
                    "lining_description": "beige \/ tan woven fabric lining with leather trim and leather slip pocket embossed CHRISTIE'S; not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even straight tone-matched stitching around panels and handle anchors; no mismatched thread visible",
                    "strap_construction": "twin short fixed top handles with pointed diamond-shaped anchors, stitched directly to body; no detachable crossbody strap, buckles, dogleash clips or dowel",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier to decode; silhouette is corporate-promotional zip attache for Christie's International Real Estate, not a Coach catalog style from 1970s-2000s",
                    "Construction - fabric lining, bright zip hardware, coated smooth leather, top-handle attache form - points to modern non-Coach promotional bag",
                    "Condition: Good; photo 5 and photo 6 show rubbing and coating loss exposing light underlayer at side piping and corners, otherwise body clean"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 25530,
            "output_tokens": 807,
            "total_tokens": 26337,
            "estimated_cost_usd": 0.012149
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 26589,
            "output_tokens": 1347,
            "total_tokens": 27936,
            "estimated_cost_usd": 0.006395
        }
    ]
}