Vintage Coach Hunter

{
    "is_handbag_probability": 0.9,
    "coach_probability": 0.055,
    "vintage_probability": 0.065,
    "authenticity_confidence": 0.045,
    "image_quality_score": 0.24,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.215,
    "recommended_max_bid": 9,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: visible handbag-shaped object with a structured rectangular base and stitched leather-like exterior",
        "photo 1: smooth reddish-brown material and orderly perimeter stitching are compatible with many leather handbags, but are not Coach-specific"
    ],
    "negative_evidence": [
        "photo 1: only the bottom of the bag is shown, with no visible Coach wordmark, carriage, creed, serial, hangtag, or distinctive Coach hardware",
        "photo 1: construction appears generic from the limited view and does not establish vintage Coach glove-tanned construction",
        "photos 1-6: all supplied images are near-duplicates of the same bottom view",
        "photos 1-5: only bottom view provided, no creed patch, COACH wordmark, turnlock, or hangtag visible",
        "photo 1: smooth reddish material with uniform sheen and thin appearance, not showing glove-tanned grain or patina",
        "photo 1: machine stitching around base, no brass hardware or vintage construction cues visible"
    ],
    "missing_information": [
        "Straight-on front, back, both sides, and top views",
        "Interior emptied, including a close-up of any sewn leather creed patch or fabric tag",
        "Close-up of all hardware, closures, zipper pulls, and strap attachments",
        "Close-up of any hangtag, both sides",
        "Bottom corners and full strap detail",
        "Seller-stated dimensions and material information",
        "photos 1-5 are same bottom view only - front, back, sides, interior, creed patch not shown",
        "interior lining, pockets and creed patch straight-on in raking light needed",
        "hardware, turnlock, zipper pulls, strap and hangtag views needed",
        "seller-stated dimensions and materials needed"
    ],
    "authenticity_concerns": [
        "photo 1: no Coach identifier is visible; a generic leather-like bag cannot be attributed to Coach from this view",
        "photo 1: the visible construction is insufficient to distinguish a Coach bag from an unbranded lookalike"
    ],
    "possible_model_reasoning": [
        "No Coach model can be identified because the front silhouette, closure, strap layout, interior, and identifiers are not shown.",
        "Condition: tentatively Very Good for the visible bottom, with intact-looking seams and no obvious major abrasion; the incomplete photo set prevents reliable overall grading.",
        "no Coach identifier visible in any photo so no catalog model can be ranked",
        "silhouette unknown from bottom view alone; size, closure, strap type not shown",
        "Condition: unknown \/ ungradable; bottom panel looks clean in photo 1 but front, corners, interior, strap not shown"
    ],
    "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": "not_visible",
        "leather_description": "Smooth reddish-brown leather-like exterior is visible on the bottom; exact material cannot be determined from the photo.",
        "lining_description": "not_visible",
        "strap_construction": "A dark strap or handle-like element is partially visible in the background, but its attachment and construction are not visible.",
        "stitching_description": "photo 1: generally straight, evenly spaced perimeter stitching is visible around the base; detailed stress-point stitching cannot be assessed."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0009,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.95,
                "coach_probability": 0.08,
                "vintage_probability": 0.08,
                "authenticity_confidence": 0.06,
                "image_quality_score": 0.28,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: visible handbag-shaped object with a structured rectangular base and stitched leather-like exterior",
                    "photo 1: smooth reddish-brown material and orderly perimeter stitching are compatible with many leather handbags, but are not Coach-specific"
                ],
                "negative_evidence": [
                    "photo 1: only the bottom of the bag is shown, with no visible Coach wordmark, carriage, creed, serial, hangtag, or distinctive Coach hardware",
                    "photo 1: construction appears generic from the limited view and does not establish vintage Coach glove-tanned construction",
                    "photos 1-6: all supplied images are near-duplicates of the same bottom view"
                ],
                "missing_information": [
                    "Straight-on front, back, both sides, and top views",
                    "Interior emptied, including a close-up of any sewn leather creed patch or fabric tag",
                    "Close-up of all hardware, closures, zipper pulls, and strap attachments",
                    "Close-up of any hangtag, both sides",
                    "Bottom corners and full strap detail",
                    "Seller-stated dimensions and material information"
                ],
                "authenticity_concerns": [
                    "photo 1: no Coach identifier is visible; a generic leather-like bag cannot be attributed to Coach from this view",
                    "photo 1: the visible construction is insufficient to distinguish a Coach bag from an unbranded lookalike"
                ],
                "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": "not_visible",
                    "leather_description": "Smooth reddish-brown leather-like exterior is visible on the bottom; exact material cannot be determined from the photo.",
                    "lining_description": "not_visible",
                    "strap_construction": "A dark strap or handle-like element is partially visible in the background, but its attachment and construction are not visible.",
                    "stitching_description": "photo 1: generally straight, evenly spaced perimeter stitching is visible around the base; detailed stress-point stitching cannot be assessed."
                },
                "possible_model_reasoning": [
                    "No Coach model can be identified because the front silhouette, closure, strap layout, interior, and identifiers are not shown.",
                    "Condition: tentatively Very Good for the visible bottom, with intact-looking seams and no obvious major abrasion; the incomplete photo set prevents reliable overall grading."
                ],
                "confidence": 0.23,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.2,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.2,
                "is_handbag_probability": 0.85,
                "missing_information": [
                    "photos 1-5 are same bottom view only - front, back, sides, interior, creed patch not shown",
                    "interior lining, pockets and creed patch straight-on in raking light needed",
                    "hardware, turnlock, zipper pulls, strap and hangtag views needed",
                    "seller-stated dimensions and materials needed"
                ],
                "negative_evidence": [
                    "photos 1-5: only bottom view provided, no creed patch, COACH wordmark, turnlock, or hangtag visible",
                    "photo 1: smooth reddish material with uniform sheen and thin appearance, not showing glove-tanned grain or patina",
                    "photo 1: machine stitching around base, no brass hardware or vintage construction cues visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "not_visible",
                    "leather_description": "photo 1: smooth reddish material with slight sheen, thin\/coated appearance, not clearly glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "photo 1: straight machine stitching around base perimeter in matching thread",
                    "strap_construction": "not_visible",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "no Coach identifier visible in any photo so no catalog model can be ranked",
                    "silhouette unknown from bottom view alone; size, closure, strap type not shown",
                    "Condition: unknown \/ ungradable; bottom panel looks clean in photo 1 but front, corners, interior, strap not shown"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28770,
            "output_tokens": 640,
            "total_tokens": 29410,
            "estimated_cost_usd": 0.013044
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30082,
            "output_tokens": 1140,
            "total_tokens": 31222,
            "estimated_cost_usd": 0.006928
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}