Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.635,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.815,
    "recommended_max_bid": 9,
    "estimated_resale_low": 5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The bag has a generic crescent\/hobo silhouette with no visible Coach wordmark, horse-and-carriage, creed patch, serial number, or hangtag.",
        "photo 1: The smooth, uniform finish and sharply coordinated product styling are more consistent with a modern mass-market bag than vintage glove-tanned Coach leather.",
        "photo 1: The listing title describes it as waterproof leather and the seller identifies it as unbranded; these are weak seller-provided signals and are not Coach evidence.",
        "photo 1: The bright gold-tone zipper and hardware do not resemble the substantial, unmarked brass hardware typically associated with classic vintage Coach, though the image does not allow close inspection.",
        "photo 1: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 1: no turnlock; zip-top crescent hobo silhouette does not match vintage Coach classics",
        "photo 1: smooth uniform coated surface with sheen and bright gold-tone plated hardware inconsistent with vintage glove-tanned leather and solid brass",
        "photo 1: thin edge-finished straps with rectangular plated rings, modern fast-fashion construction"
    ],
    "missing_information": [
        "Interior view, including any brand label, creed patch, lining, and fabric tags.",
        "Close-ups of the zipper pull, strap clips, buckle, stitching, and any interior or exterior markings.",
        "Back, bottom, side, and corner views to assess construction and materials.",
        "Reliable material information; the photo alone cannot establish whether the exterior is genuine leather, PU, or another synthetic material.",
        "Seller-stated dimensions and age\/provenance.",
        "photo 1 only: no interior, bottom, creed close-up, or hardware stamp views to verify identifiers",
        "lining material and interior construction not shown",
        "hardware engravings \/ zipper brand not shown"
    ],
    "authenticity_concerns": [
        "photo 1: No Coach identifier is visible, and the silhouette and hardware appear generic rather than a recognizable Coach construction.",
        "photo 1: The apparent smooth, possibly coated material and product-shot presentation are inconsistent with the usual visible signs of vintage Coach glove-tanned leather; material cannot be confirmed from this image."
    ],
    "possible_model_reasoning": [
        "modern crescent \/ half-moon zip-top hobo with two straps is a current fast-fashion shape, not a vintage Coach catalog silhouette (Ergo, Soho hobo shapes differ in construction and hardware)",
        "no Coach hard identifiers visible in photo 1; materials and bright plated hardware point to modern non-Coach manufacture",
        "Condition: New-appearing stock-type image; no wear assessable from single white-background view"
    ],
    "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: Gold-tone zipper, small metal strap clips, and a rectangular buckle are visible; no Coach engraving is legible. Hardware appears light and polished, but weight and construction cannot be confirmed.",
        "leather_description": "photo 1: Smooth, uniform tan\/caramel exterior with a possibly coated finish; genuine leather versus synthetic material is not determinable.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: Adjustable shoulder strap with stitched edges, punched adjustment holes, keeper loops, detachable metal clips, and a separate rectangular buckle section.",
        "stitching_description": "photo 1: Exterior perimeter stitching appears regular and machine-sewn; stress-point and interior stitching are not visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0012,
    "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": 0.72,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The bag has a generic crescent\/hobo silhouette with no visible Coach wordmark, horse-and-carriage, creed patch, serial number, or hangtag.",
                    "photo 1: The smooth, uniform finish and sharply coordinated product styling are more consistent with a modern mass-market bag than vintage glove-tanned Coach leather.",
                    "photo 1: The listing title describes it as waterproof leather and the seller identifies it as unbranded; these are weak seller-provided signals and are not Coach evidence.",
                    "photo 1: The bright gold-tone zipper and hardware do not resemble the substantial, unmarked brass hardware typically associated with classic vintage Coach, though the image does not allow close inspection."
                ],
                "missing_information": [
                    "Interior view, including any brand label, creed patch, lining, and fabric tags.",
                    "Close-ups of the zipper pull, strap clips, buckle, stitching, and any interior or exterior markings.",
                    "Back, bottom, side, and corner views to assess construction and materials.",
                    "Reliable material information; the photo alone cannot establish whether the exterior is genuine leather, PU, or another synthetic material.",
                    "Seller-stated dimensions and age\/provenance."
                ],
                "authenticity_concerns": [
                    "photo 1: No Coach identifier is visible, and the silhouette and hardware appear generic rather than a recognizable Coach construction.",
                    "photo 1: The apparent smooth, possibly coated material and product-shot presentation are inconsistent with the usual visible signs of vintage Coach glove-tanned leather; material cannot be confirmed from this image."
                ],
                "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: Gold-tone zipper, small metal strap clips, and a rectangular buckle are visible; no Coach engraving is legible. Hardware appears light and polished, but weight and construction cannot be confirmed.",
                    "leather_description": "photo 1: Smooth, uniform tan\/caramel exterior with a possibly coated finish; genuine leather versus synthetic material is not determinable.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: Adjustable shoulder strap with stitched edges, punched adjustment holes, keeper loops, detachable metal clips, and a separate rectangular buckle section.",
                    "stitching_description": "photo 1: Exterior perimeter stitching appears regular and machine-sewn; stress-point and interior stitching are not visible."
                },
                "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": 25,
                "estimated_resale_low": 5,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1 only: no interior, bottom, creed close-up, or hardware stamp views to verify identifiers",
                    "lining material and interior construction not shown",
                    "hardware engravings \/ zipper brand not shown"
                ],
                "negative_evidence": [
                    "photo 1: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 1: no turnlock; zip-top crescent hobo silhouette does not match vintage Coach classics",
                    "photo 1: smooth uniform coated surface with sheen and bright gold-tone plated hardware inconsistent with vintage glove-tanned leather and solid brass",
                    "photo 1: thin edge-finished straps with rectangular plated rings, modern fast-fashion construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone rectangular rings and zipper teeth, small rivet on strap; plated appearance, not vintage solid brass patina",
                    "leather_description": "smooth uniform tan \/ cognac surface with slight sheen, even coated appearance suggestive of modern split or synthetic leather; no glove-tanned grain, patina, or natural scars visible",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even edge stitching in matching thread along top edge and strap; no detail of stress points visible",
                    "strap_construction": "short shoulder strap attached via rectangular rings plus separate longer adjustable crossbody strap with buckle holes shown at right",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "modern crescent \/ half-moon zip-top hobo with two straps is a current fast-fashion shape, not a vintage Coach catalog silhouette (Ergo, Soho hobo shapes differ in construction and hardware)",
                    "no Coach hard identifiers visible in photo 1; materials and bright plated hardware point to modern non-Coach manufacture",
                    "Condition: New-appearing stock-type image; no wear assessable from single white-background view"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16823,
            "output_tokens": 739,
            "total_tokens": 17562,
            "estimated_cost_usd": 0.008503
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17223,
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}