Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.02,
    "vintage_probability": 0.22,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.83,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.905,
    "recommended_max_bid": 8,
    "estimated_resale_low": 5,
    "estimated_resale_high": 21.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: the bag has a generic patchwork rectangular shoulder-bag design with no visible Coach branding, creed, carriage, or hangtag.",
        "photo 5: the interior label visibly reads \u201cMADE IN CHINA \/ MAN MADE MATERIAL,\u201d inconsistent with the glove-tanned leather construction expected of classic vintage Coach bags.",
        "photo 6: the interior uses a fabric lining and simple magnetic-snap closures rather than identifiable vintage Coach construction.",
        "photo 1: the exterior appears synthetic or heavily coated rather than natural glove-tanned cowhide.",
        "photo 5: fabric content tag reads MADE IN CHINA \/ MAN MADE MATERIALS - faux\/vegan material excludes vintage Coach glove-tanned leather",
        "photo 1-4: patchwork squares in tan\/brown faux leather with thin rolled shoulder straps - no Coach catalog silhouette, no turnlock, no solid brass hardware",
        "photo 6: interior is fully lined in tan cotton fabric with center zip pocket and silver-tone magnetic snap closure - vintage Coach classics are unlined suede, not cotton-lined with magnetic snap",
        "photo 5-6: no creed patch, no COACH wordmark, no hangtag, no horse-and-carriage visible in any view",
        "seller text states faux leather and no brand tags - consistent with photos"
    ],
    "missing_information": [
        "photo 5: no Coach creed or serial\/style number is visible; request a complete inspection of all interior walls and pockets for any leather patch or fabric tag.",
        "photo 6: zipper-pull branding and interior construction are not sufficiently detailed for brand identification.",
        "photo 4: request close-ups of the handle attachment points, bottom, corners, and all hardware."
    ],
    "authenticity_concerns": [
        "photo 5: the explicit \u201cMAN MADE MATERIAL\u201d label and Made in China origin strongly indicate a non-Coach synthetic bag rather than a classic vintage Coach leather model.",
        "photo 1: the generic patchwork design and absence of Coach identifiers provide no evidence of Coach manufacture."
    ],
    "possible_model_reasoning": [
        "Not a Coach model: man-made materials tag, cotton lining, magnetic snap, faux patchwork construction and absence of creed\/wordmark\/turnlock\/solid brass are inconsistent with any vintage Coach line",
        "Condition: Good; seller notes flaw on underside of handle and staining on inner cotton lining (photo 6 shows stains), outside otherwise in good condition per photos 1-4"
    ],
    "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 6: simple silver-tone magnetic snap closures; no Coach engraving visible. photo 1: thin tubular shoulder straps with matching tan finish.",
        "leather_description": "photo 1: tan and brown patchwork exterior with a smooth, glossy synthetic or coated appearance; photo 5 explicitly identifies the material as man-made.",
        "lining_description": "photo 6: tan fabric lining with visible staining and an interior zip pocket.",
        "strap_construction": "photos 1-4: two thin, fixed shoulder straps attached directly to the upper bag; seller reports a flaw on the underside of one handle, but the flaw is not clearly visible in the supplied views.",
        "stitching_description": "photos 1-4: visible machine stitching around patchwork panels and perimeter; generally even, but not distinctive of Coach."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0052,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.04,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: the bag has a generic patchwork rectangular shoulder-bag design with no visible Coach branding, creed, carriage, or hangtag.",
                    "photo 5: the interior label visibly reads \u201cMADE IN CHINA \/ MAN MADE MATERIAL,\u201d inconsistent with the glove-tanned leather construction expected of classic vintage Coach bags.",
                    "photo 6: the interior uses a fabric lining and simple magnetic-snap closures rather than identifiable vintage Coach construction.",
                    "photo 1: the exterior appears synthetic or heavily coated rather than natural glove-tanned cowhide."
                ],
                "missing_information": [
                    "photo 5: no Coach creed or serial\/style number is visible; request a complete inspection of all interior walls and pockets for any leather patch or fabric tag.",
                    "photo 6: zipper-pull branding and interior construction are not sufficiently detailed for brand identification.",
                    "photo 4: request close-ups of the handle attachment points, bottom, corners, and all hardware."
                ],
                "authenticity_concerns": [
                    "photo 5: the explicit \u201cMAN MADE MATERIAL\u201d label and Made in China origin strongly indicate a non-Coach synthetic bag rather than a classic vintage Coach leather model.",
                    "photo 1: the generic patchwork design and absence of Coach identifiers provide no evidence of Coach manufacture."
                ],
                "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 6: simple silver-tone magnetic snap closures; no Coach engraving visible. photo 1: thin tubular shoulder straps with matching tan finish.",
                    "leather_description": "photo 1: tan and brown patchwork exterior with a smooth, glossy synthetic or coated appearance; photo 5 explicitly identifies the material as man-made.",
                    "lining_description": "photo 6: tan fabric lining with visible staining and an interior zip pocket.",
                    "strap_construction": "photos 1-4: two thin, fixed shoulder straps attached directly to the upper bag; seller reports a flaw on the underside of one handle, but the flaw is not clearly visible in the supplied views.",
                    "stitching_description": "photos 1-4: visible machine stitching around patchwork panels and perimeter; generally even, but not distinctive of Coach."
                },
                "possible_model_reasoning": [],
                "confidence": 0.93,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "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": 18,
                "estimated_resale_low": 5,
                "image_quality_score": 0.78,
                "is_handbag_probability": 0.97,
                "missing_information": [],
                "negative_evidence": [
                    "photo 5: fabric content tag reads MADE IN CHINA \/ MAN MADE MATERIALS - faux\/vegan material excludes vintage Coach glove-tanned leather",
                    "photo 1-4: patchwork squares in tan\/brown faux leather with thin rolled shoulder straps - no Coach catalog silhouette, no turnlock, no solid brass hardware",
                    "photo 6: interior is fully lined in tan cotton fabric with center zip pocket and silver-tone magnetic snap closure - vintage Coach classics are unlined suede, not cotton-lined with magnetic snap",
                    "photo 5-6: no creed patch, no COACH wordmark, no hangtag, no horse-and-carriage visible in any view",
                    "seller text states faux leather and no brand tags - consistent with photos"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone magnetic snap closure (photo 6); no brass turnlock, no brass buckles, D-rings or dogleash clips visible",
                    "leather_description": "faux leather \/ man-made materials patchwork in tan, beige and brown squares, smooth coated appearance, not glove-tanned cowhide (photos 1-3, tag in photo 5)",
                    "lining_description": "tan cotton fabric lining with interior zip pocket (photo 6); stained; not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "contrasting light topstitching around patchwork squares and top edge (photos 1-3); even but not Coach glove-tanned construction",
                    "strap_construction": "two thin unadjustable double shoulder straps in tan faux leather, sewn directly to body (photos 1-4)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Not a Coach model: man-made materials tag, cotton lining, magnetic snap, faux patchwork construction and absence of creed\/wordmark\/turnlock\/solid brass are inconsistent with any vintage Coach line",
                    "Condition: Good; seller notes flaw on underside of handle and staining on inner cotton lining (photo 6 shows stains), outside otherwise in good condition per photos 1-4"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.4
            }
        }
    ],
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            "model_name": "meta:muse-spark-1.3-contributor",
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}