Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.015,
    "vintage_probability": 0.01,
    "authenticity_confidence": 0.015,
    "image_quality_score": 0.83,
    "seller_misidentification_probability": 0.015,
    "confidence": 0.89,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: listing title explicitly describes PU leather, which is inconsistent with the glove-tanned leather used on classic vintage Coach bags.",
        "photo 1: all-over geometric monogram is not Coach Signature C patterning and does not show a Coach wordmark or carriage.",
        "photo 2: hardware appears bright, plated gold-tone and lightweight rather than vintage solid brass.",
        "photo 3: construction is a modern structured zip-top satchel with multiple decorative straps and tassels, not a recognizable vintage Coach classic.",
        "photo 4: underside feet, modern zipper construction, and synthetic-looking coated exterior are visible.",
        "photo 6: close-up shows generic geometric print and no legible Coach identifier.",
        "photo 1-6: all-over ALD letter print, not Coach Signature C pairing or alignment",
        "photo 2-4: coated PU \/ faux leather body with tan PU trim, seller title states PU Leather",
        "photo 4,6: bright gold-tone plated hardware, modern zip-top satchel silhouette with cat tassel charm, not vintage Coach construction",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible"
    ],
    "missing_information": [
        "photo 1\/photo 3\/photo 4\/photo 6: no genuine interior view showing a sewn Coach creed patch or fabric tag.",
        "photo 1-photo 6: no close-up of any Coach wordmark, horse-and-carriage mark, or authentic hangtag.",
        "photo 1-photo 6: listing uses apparent stock\/catalog imagery rather than documented photos of the actual bag.",
        "photo 1-photo 6: actual material composition, country of manufacture, and interior lining are not independently verifiable.",
        "Interior and creed patch not shown, but not needed given exterior materials and branding exclude Coach",
        "No Coach identifiers visible to verify"
    ],
    "authenticity_concerns": [
        "photo 1\/photo 2\/photo 6: generic geometric monogram is a lookalike motif, not Coach Signature C canvas.",
        "photo 1\/photo 2: PU\/synthetic construction and bright plated hardware are inconsistent with a vintage Coach leather classic.",
        "photo 1-photo 6: no Coach identifier is visible; the images appear promotional\/stock imagery, so the actual item cannot be authenticated from them."
    ],
    "possible_model_reasoning": [
        "The structured top-handle\/shoulder-bag silhouette is generic and does not closely identify a Coach catalog model.",
        "The geometric monogram, PU material, decorative tassels, and contemporary bright hardware point to a modern non-Coach fashion handbag.",
        "Condition cannot be reliably graded because the photos appear to be stock images rather than the actual used item; visible presentation suggests new or unused, but this is unverified.",
        "No Coach model fits: zip-top monogram PU satchel with ALD print and modern plated hardware does not match any catalog style in section 4",
        "Materials alone exclude vintage Coach per section 1: PU\/faux leather with printed monogram gives coach_probability <=0.05",
        "Condition: appears New\/unused studio\/catalog photos, but irrelevant to Coach identification"
    ],
    "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 rectangular buckles, zipper hardware, clips, and decorative attachments are visible; no Coach engraving is legible.",
        "leather_description": "Seller states PU leather; photos show a synthetic-looking textured coated exterior with brown trim, not visibly natural glove-tanned leather.",
        "lining_description": "not_visible",
        "strap_construction": "Two rounded top handles plus a detachable-looking adjustable shoulder strap with gold-tone clips are visible.",
        "stitching_description": "Regular machine stitching is visible along the trim and handles; fine construction details are limited by stock imagery."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0002,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.02,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: listing title explicitly describes PU leather, which is inconsistent with the glove-tanned leather used on classic vintage Coach bags.",
                    "photo 1: all-over geometric monogram is not Coach Signature C patterning and does not show a Coach wordmark or carriage.",
                    "photo 2: hardware appears bright, plated gold-tone and lightweight rather than vintage solid brass.",
                    "photo 3: construction is a modern structured zip-top satchel with multiple decorative straps and tassels, not a recognizable vintage Coach classic.",
                    "photo 4: underside feet, modern zipper construction, and synthetic-looking coated exterior are visible.",
                    "photo 6: close-up shows generic geometric print and no legible Coach identifier."
                ],
                "missing_information": [
                    "photo 1\/photo 3\/photo 4\/photo 6: no genuine interior view showing a sewn Coach creed patch or fabric tag.",
                    "photo 1-photo 6: no close-up of any Coach wordmark, horse-and-carriage mark, or authentic hangtag.",
                    "photo 1-photo 6: listing uses apparent stock\/catalog imagery rather than documented photos of the actual bag.",
                    "photo 1-photo 6: actual material composition, country of manufacture, and interior lining are not independently verifiable."
                ],
                "authenticity_concerns": [
                    "photo 1\/photo 2\/photo 6: generic geometric monogram is a lookalike motif, not Coach Signature C canvas.",
                    "photo 1\/photo 2: PU\/synthetic construction and bright plated hardware are inconsistent with a vintage Coach leather classic.",
                    "photo 1-photo 6: no Coach identifier is visible; the images appear promotional\/stock imagery, so the actual item cannot be authenticated from them."
                ],
                "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 rectangular buckles, zipper hardware, clips, and decorative attachments are visible; no Coach engraving is legible.",
                    "leather_description": "Seller states PU leather; photos show a synthetic-looking textured coated exterior with brown trim, not visibly natural glove-tanned leather.",
                    "lining_description": "not_visible",
                    "strap_construction": "Two rounded top handles plus a detachable-looking adjustable shoulder strap with gold-tone clips are visible.",
                    "stitching_description": "Regular machine stitching is visible along the trim and handles; fine construction details are limited by stock imagery."
                },
                "possible_model_reasoning": [
                    "The structured top-handle\/shoulder-bag silhouette is generic and does not closely identify a Coach catalog model.",
                    "The geometric monogram, PU material, decorative tassels, and contemporary bright hardware point to a modern non-Coach fashion handbag.",
                    "Condition cannot be reliably graded because the photos appear to be stock images rather than the actual used item; visible presentation suggests new or unused, but this is unverified."
                ],
                "confidence": 0.88,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.01,
                "coach_probability": 0.01,
                "confidence": 0.9,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 5,
                "image_quality_score": 0.8,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "Interior and creed patch not shown, but not needed given exterior materials and branding exclude Coach",
                    "No Coach identifiers visible to verify"
                ],
                "negative_evidence": [
                    "photo 1-6: all-over ALD letter print, not Coach Signature C pairing or alignment",
                    "photo 2-4: coated PU \/ faux leather body with tan PU trim, seller title states PU Leather",
                    "photo 4,6: bright gold-tone plated hardware, modern zip-top satchel silhouette with cat tassel charm, not vintage Coach construction",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone plated hardware, top zip pulls with tan tabs, side zips, D-rings and buckles; modern plated finish, not solid vintage brass",
                    "leather_description": "coated PU \/ faux leather with ALD monogram print and smooth tan PU handles and trim",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "machine stitching on handles and trim, tan thread; no detailed stitch close-up",
                    "strap_construction": "rolled top handles plus detachable adjustable crossbody strap on metal clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: zip-top monogram PU satchel with ALD print and modern plated hardware does not match any catalog style in section 4",
                    "Materials alone exclude vintage Coach per section 1: PU\/faux leather with printed monogram gives coach_probability <=0.05",
                    "Condition: appears New\/unused studio\/catalog photos, but irrelevant to Coach identification"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.01,
                "vintage_probability": 0.01
            }
        }
    ],
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}