Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.07,
    "vintage_probability": 0.29,
    "authenticity_confidence": 0.08,
    "image_quality_score": 0.695,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.71,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 45,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: substantial leather messenger\/briefcase-style handbag with adjustable shoulder strap and metal clips.",
        "photo 1: brown leather and metal hardware are consistent with a general vintage leather bag, but not specifically Coach.",
        "photo 1, photo 2: all-leather flap messenger bag with leather straps",
        "photo 3, photo 5: detachable strap on dogleash-type clips as used on many vintage bags",
        "photo 1, photo 6: smooth brown leather with natural patina and scratches consistent with aged leather"
    ],
    "negative_evidence": [
        "photo 1: no visible Coach wordmark, horse-and-carriage, hangtag, or creed patch.",
        "photo 1: the flap, vertical straps, buckles, rivets, and handle construction do not match a clearly recognizable classic Coach silhouette.",
        "photos 3-6: hardware appears dark\/plated and includes generic swivel clips; no Coach-specific stamped hardware is visible.",
        "photo 1: broad, heavily scratched leather panels and the multi-strap messenger construction are more consistent with an unbranded satchel or briefcase than a documented vintage Coach model.",
        "photo 1, photo 2: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 1, photo 2: no turnlock - closure is two vertical buckle straps, not Coach turnlock geometry",
        "photo 1, photo 2, photo 6: flap messenger \/ brief silhouette 14x11x6 with top handle does not match classic Coach catalog styles",
        "photo 3, photo 5: dark antiqued hardware tone and modern dogleash swivel clips, not vintage solid brass",
        "photo 1-6: no interior shown so unlined glove-tanned construction cannot be confirmed"
    ],
    "missing_information": [
        "photo 1: interior is not shown; request clear photos of every interior wall, pocket, seam, and any leather creed patch or fabric label.",
        "request a straight-on close-up of any markings inside the bag, including country of manufacture and serial\/style number.",
        "request close-ups of the zipper pulls, underside of hardware, bottom, corners, and strap attachment points.",
        "seller-stated dimensions are available, but a ruler or scale photo would help confirm proportions.",
        "interior views not shown - lining, pockets, creed patch not visible",
        "creed close-up in raking light not shown",
        "bottom, back, side views not shown",
        "hangtag both faces not shown",
        "hardware stamps \/ zipper brand not shown",
        "seller-stated dimensions only - no scale or ruler"
    ],
    "authenticity_concerns": [
        "photos 1-6: no Coach identifier is visible, so the bag cannot be supported as Coach and should be treated as an unbranded Coach-style\/lookalike leather bag unless interior evidence shows otherwise."
    ],
    "possible_model_reasoning": [
        "No Coach model is assigned because no Coach identifier or distinctive Coach construction is visible.",
        "The rectangular flap, handle, and shoulder strap suggest a messenger\/briefcase-style leather bag, but this silhouette is widely produced by unbranded makers.",
        "Condition: Good\/Fair; extensive scratches and scuffing across the flap and body are visible in photos 1 and 6, with additional wear around the strap and edges. Interior condition, odor, and functional hardware are unknown.",
        "No Coach model fits: size 14x11x6, buckle-strap flap, top handle plus crossbody is messenger\/brief format, not City Bag, Willis, Court, Station, Duffle Sac or other catalog classic",
        "No hard identifiers visible to decode era or style",
        "Condition: Good; surface scratches and sheen variation (photo 6), edge wear and darkening, strap intact but no interior\/bottom to cap higher"
    ],
    "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": "photos 1, 3, 5: dark metal swivel clips, rings, buckles, rivets, and snaps; no legible brand engraving visible.",
        "leather_description": "photos 1 and 6: brown\/tan smooth leather with extensive surface scratches, scuffs, creasing, and visible wear; apparent leather rather than synthetic material.",
        "lining_description": "not_visible",
        "strap_construction": "photos 1-5: long adjustable leather shoulder strap with buckle adjustment, riveted\/snapped ends, and swivel clips.",
        "stitching_description": "photos 1, 3, 5-6: machine-stitched leather panels with generally even perimeter stitching; some loose thread is visible near the upper handle area in photo 1."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0048,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.06,
                "vintage_probability": 0.28,
                "authenticity_confidence": 0.08,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.06,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: substantial leather messenger\/briefcase-style handbag with adjustable shoulder strap and metal clips.",
                    "photo 1: brown leather and metal hardware are consistent with a general vintage leather bag, but not specifically Coach."
                ],
                "negative_evidence": [
                    "photo 1: no visible Coach wordmark, horse-and-carriage, hangtag, or creed patch.",
                    "photo 1: the flap, vertical straps, buckles, rivets, and handle construction do not match a clearly recognizable classic Coach silhouette.",
                    "photos 3-6: hardware appears dark\/plated and includes generic swivel clips; no Coach-specific stamped hardware is visible.",
                    "photo 1: broad, heavily scratched leather panels and the multi-strap messenger construction are more consistent with an unbranded satchel or briefcase than a documented vintage Coach model."
                ],
                "missing_information": [
                    "photo 1: interior is not shown; request clear photos of every interior wall, pocket, seam, and any leather creed patch or fabric label.",
                    "request a straight-on close-up of any markings inside the bag, including country of manufacture and serial\/style number.",
                    "request close-ups of the zipper pulls, underside of hardware, bottom, corners, and strap attachment points.",
                    "seller-stated dimensions are available, but a ruler or scale photo would help confirm proportions."
                ],
                "authenticity_concerns": [
                    "photos 1-6: no Coach identifier is visible, so the bag cannot be supported as Coach and should be treated as an unbranded Coach-style\/lookalike leather bag unless interior evidence shows otherwise."
                ],
                "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": "photos 1, 3, 5: dark metal swivel clips, rings, buckles, rivets, and snaps; no legible brand engraving visible.",
                    "leather_description": "photos 1 and 6: brown\/tan smooth leather with extensive surface scratches, scuffs, creasing, and visible wear; apparent leather rather than synthetic material.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1-5: long adjustable leather shoulder strap with buckle adjustment, riveted\/snapped ends, and swivel clips.",
                    "stitching_description": "photos 1, 3, 5-6: machine-stitched leather panels with generally even perimeter stitching; some loose thread is visible near the upper handle area in photo 1."
                },
                "possible_model_reasoning": [
                    "No Coach model is assigned because no Coach identifier or distinctive Coach construction is visible.",
                    "The rectangular flap, handle, and shoulder strap suggest a messenger\/briefcase-style leather bag, but this silhouette is widely produced by unbranded makers.",
                    "Condition: Good\/Fair; extensive scratches and scuffing across the flap and body are visible in photos 1 and 6, with additional wear around the strap and edges. Interior condition, odor, and functional hardware are unknown."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.08,
                "coach_probability": 0.08,
                "confidence": 0.6,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 45,
                "estimated_resale_low": 20,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "interior views not shown - lining, pockets, creed patch not visible",
                    "creed close-up in raking light not shown",
                    "bottom, back, side views not shown",
                    "hangtag both faces not shown",
                    "hardware stamps \/ zipper brand not shown",
                    "seller-stated dimensions only - no scale or ruler"
                ],
                "negative_evidence": [
                    "photo 1, photo 2: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 1, photo 2: no turnlock - closure is two vertical buckle straps, not Coach turnlock geometry",
                    "photo 1, photo 2, photo 6: flap messenger \/ brief silhouette 14x11x6 with top handle does not match classic Coach catalog styles",
                    "photo 3, photo 5: dark antiqued hardware tone and modern dogleash swivel clips, not vintage solid brass",
                    "photo 1-6: no interior shown so unlined glove-tanned construction cannot be confirmed"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "dark antique brass-tone hardware: rivets, rectangular buckles on flap straps, top-handle D-rings, dogleash swivel clips for detachable strap; tarnished\/darkened tone, no COACH engraving visible",
                    "leather_description": "medium brown smooth leather with sheen, surface scratches, wrinkles and patina; side gussets appear suede-like \/ nubuck; not clearly glove-tanned full-grain",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched straight stitching visible on straps and flap trim (photo 3, photo 6); no mismatched thread visible at this resolution",
                    "strap_construction": "top grab handle with riveted mounts plus detachable long crossbody strap with buckle adjustment and dogleash clips (photo 2, photo 4); shoulder pad slider on strap",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1, photo 2: all-leather flap messenger bag with leather straps",
                    "photo 3, photo 5: detachable strap on dogleash-type clips as used on many vintage bags",
                    "photo 1, photo 6: smooth brown leather with natural patina and scratches consistent with aged leather"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: size 14x11x6, buckle-strap flap, top handle plus crossbody is messenger\/brief format, not City Bag, Willis, Court, Station, Duffle Sac or other catalog classic",
                    "No hard identifiers visible to decode era or style",
                    "Condition: Good; surface scratches and sheen variation (photo 6), edge wear and darkening, strap intact but no interior\/bottom to cap higher"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.08,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28779,
            "output_tokens": 894,
            "total_tokens": 29673,
            "estimated_cost_usd": 0.013657
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30091,
            "output_tokens": 1375,
            "total_tokens": 31466,
            "estimated_cost_usd": 0.007118
        }
    ]
}