Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.02,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.815,
    "recommended_max_bid": 9,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The bag appears to be a modern structured tote\/satchel with smooth, highly uniform leather-like material and bright plated gold-tone hardware.",
        "photo 1: No legible COACH wordmark, horse-and-carriage mark, leather hangtag, creed patch, or other Coach identifier is visible.",
        "photo 1: White contrast stitching, decorative curved front piping, and the shiny hardware do not resemble a typical vintage glove-tanned Coach classic.",
        "photo 1: The listing identifies the seller brand as Unbranded and provides only generic product wording.",
        "photo 1: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 1: modern tote\/satchel silhouette with curved overlay seam and white contrast stitching, not a Coach catalog silhouette",
        "photo 1: no turnlock; zip-top with bright gold-tone plated handle caps and lobster-clasp crossbody strap, inconsistent with vintage solid-brass Coach hardware",
        "photo 1: smooth high-sheen black material with white contrast thread, suggests coated \/ synthetic rather than glove-tanned cowhide"
    ],
    "missing_information": [
        "photo 1: Only one front promotional image is provided; request clear photos of the interior, bottom, back, sides, strap attachments, zipper pulls, and all labels or tags.",
        "Request a straight-on close-up of any interior leather creed patch or fabric tag.",
        "Request close-ups of the hardware and hangtag, including both sides of any tag.",
        "photo 1 only front view: interior, creed patch area, lining, and bottom not shown",
        "close-up of hardware stamps, zipper brand, and hangtag area not shown",
        "material \/ fabric tag and Made-in line not shown"
    ],
    "authenticity_concerns": [
        "photo 1: This appears more consistent with a generic modern unbranded handbag than with a Coach-made bag.",
        "photo 1: The smooth uniform surface may be synthetic or heavily finished material; the material cannot be confirmed from this image.",
        "photo 1: The bright plated hardware and decorative construction are inconsistent with the usual solid-brass construction of many vintage Coach classics, though this is not by itself proof of a replica."
    ],
    "possible_model_reasoning": [
        "photo 1 shape, contrast stitching, plated hardware, and zip-top do not match any 1970s-1990s Coach classic (Willis, Court, Station, City Bag, Dinky) or modern Coach line",
        "no Coach identifier visible; construction reads as modern unbranded fast-fashion tote",
        "Condition: appears New\/unused in catalog-style white-background photo; no wear assessable"
    ],
    "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 gold-tone plated-looking hardware, including lobster-style strap clips and decorative handle attachments; no Coach engraving is visible (photo 1).",
        "leather_description": "Smooth, glossy, highly uniform black leather-like exterior; genuine leather versus synthetic material is not determinable from the photo (photo 1).",
        "lining_description": "not_visible",
        "strap_construction": "Two rounded fixed top handles and one detachable-looking adjustable shoulder strap with lobster-style clips are visible (photo 1).",
        "stitching_description": "Visible white contrast stitching follows the upper edge and curved front seam; stitching appears regular in the promotional image (photo 1)."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0021,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The bag appears to be a modern structured tote\/satchel with smooth, highly uniform leather-like material and bright plated gold-tone hardware.",
                    "photo 1: No legible COACH wordmark, horse-and-carriage mark, leather hangtag, creed patch, or other Coach identifier is visible.",
                    "photo 1: White contrast stitching, decorative curved front piping, and the shiny hardware do not resemble a typical vintage glove-tanned Coach classic.",
                    "photo 1: The listing identifies the seller brand as Unbranded and provides only generic product wording."
                ],
                "missing_information": [
                    "photo 1: Only one front promotional image is provided; request clear photos of the interior, bottom, back, sides, strap attachments, zipper pulls, and all labels or tags.",
                    "Request a straight-on close-up of any interior leather creed patch or fabric tag.",
                    "Request close-ups of the hardware and hangtag, including both sides of any tag."
                ],
                "authenticity_concerns": [
                    "photo 1: This appears more consistent with a generic modern unbranded handbag than with a Coach-made bag.",
                    "photo 1: The smooth uniform surface may be synthetic or heavily finished material; the material cannot be confirmed from this image.",
                    "photo 1: The bright plated hardware and decorative construction are inconsistent with the usual solid-brass construction of many vintage Coach classics, though this is not by itself proof of a replica."
                ],
                "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 gold-tone plated-looking hardware, including lobster-style strap clips and decorative handle attachments; no Coach engraving is visible (photo 1).",
                    "leather_description": "Smooth, glossy, highly uniform black leather-like exterior; genuine leather versus synthetic material is not determinable from the photo (photo 1).",
                    "lining_description": "not_visible",
                    "strap_construction": "Two rounded fixed top handles and one detachable-looking adjustable shoulder strap with lobster-style clips are visible (photo 1).",
                    "stitching_description": "Visible white contrast stitching follows the upper edge and curved front seam; stitching appears regular in the promotional image (photo 1)."
                },
                "possible_model_reasoning": [],
                "confidence": 0.78,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "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": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1 only front view: interior, creed patch area, lining, and bottom not shown",
                    "close-up of hardware stamps, zipper brand, and hangtag area not shown",
                    "material \/ fabric tag and Made-in line not shown"
                ],
                "negative_evidence": [
                    "photo 1: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 1: modern tote\/satchel silhouette with curved overlay seam and white contrast stitching, not a Coach catalog silhouette",
                    "photo 1: no turnlock; zip-top with bright gold-tone plated handle caps and lobster-clasp crossbody strap, inconsistent with vintage solid-brass Coach hardware",
                    "photo 1: smooth high-sheen black material with white contrast thread, suggests coated \/ synthetic rather than glove-tanned cowhide"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone plated hardware: cylindrical handle ferrules, oval rings, lobster-clasp crossbody attachments, top zipper; bright and thin, not solid vintage brass",
                    "leather_description": "black smooth material with uniform sheen and curved pieced panels; grain not visible, appears synthetic \/ coated rather than glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "white contrast topstitching along top edge and curved front seam; dark stitching on strap; even machine stitching, not tone-on-tone Coach classic stitching",
                    "strap_construction": "two short rolled top handles fixed with metal ferrules plus detachable flat crossbody strap on lobster clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "photo 1 shape, contrast stitching, plated hardware, and zip-top do not match any 1970s-1990s Coach classic (Willis, Court, Station, City Bag, Dinky) or modern Coach line",
                    "no Coach identifier visible; construction reads as modern unbranded fast-fashion tote",
                    "Condition: appears New\/unused in catalog-style white-background photo; no wear assessable"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16321,
            "output_tokens": 658,
            "total_tokens": 16979,
            "estimated_cost_usd": 0.008108
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 16671,
            "output_tokens": 1217,
            "total_tokens": 17888,
            "estimated_cost_usd": 0.004308
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}