Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.07,
    "vintage_probability": 0.215,
    "authenticity_confidence": 0.06,
    "image_quality_score": 0.77,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.775,
    "recommended_max_bid": 11,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 35,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a leather bucket-style handbag with a drawstring closure and shoulder strap",
        "photo 1: construction appears substantial and the leather is visibly textured",
        "photo 1: black leather drawstring bucket handbag shape broadly in the family that includes Coach Duffle Sac types",
        "photo 1-3: genuine-appearing pebbled leather with soft patina consistent with older leather bag"
    ],
    "negative_evidence": [
        "photo 1: no visible Coach wordmark, horse-and-carriage, creed patch, hangtag, or other Coach identifier",
        "photo 2: bright silver-tone hardware is not typical of classic vintage Coach bucket bags, which commonly use solid brass hardware",
        "photo 1: the base uses a crocodile-embossed or crocodile-like contrasting panel, unlike the straightforward glove-tanned construction associated with many vintage Coach classics",
        "photo 3: the silhouette and drawstring construction do not closely match a clearly identifiable catalog Coach model",
        "photo 4: hardware and strap attachment appear generic rather than characteristically Coach",
        "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 1,4,5: silver-tone hardware throughout, not solid brass vintage Coach hardware",
        "photo 4: metal cord-lock \/ barrel toggle on drawstring, not Coach classic leather drawstring",
        "photo 1-3,5: croc-embossed smooth base band contrasting with pebbled body, not a vintage Coach classic treatment",
        "photo 1,5: thin strap attaches with snap buttons and small buckle, not Coach dogleash clips or dual-buckle Duffle Sac strap",
        "photo 1-6: no turnlock present"
    ],
    "missing_information": [
        "photo 7: interior emptied and photographed clearly, including the back wall and any sewn leather creed patch",
        "photo 8: close-up of any interior fabric tag, zipper pull, or brand stamp",
        "photo 9: close-ups of all hardware, including any hidden markings",
        "photo 10: seller-stated dimensions and country-of-origin information",
        "interior views emptied showing lining and any creed patch or fabric tags",
        "creed patch straight-on in raking light if present",
        "close-up of any interior brand stamp, fabric label, or Made-in line",
        "hardware stamps on rings, buckle, and cord-lock",
        "seller-stated dimensions for scale"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible across the supplied exterior photos; this is more consistent with an unbranded or lookalike leather bag than a misidentified vintage Coach",
        "The bright silver-tone hardware and generic drawstring bucket construction are inconsistent with the strongest vintage Coach indicators",
        "photo 1-5: no Coach identifier visible to authenticate - no creed, wordmark, or hangtag shown",
        "photo 4: silver-tone metal cord-lock \/ toggle on drawstring is inconsistent with vintage Coach Duffle Sac leather-lace closure"
    ],
    "possible_model_reasoning": [
        "The bag is a genuine handbag, but its drawstring bucket silhouette does not provide a persuasive match to a listed vintage Coach model; no Coach style number is visible.",
        "The visible construction is more consistent with a generic leather bucket bag than with a Coach Duffle Sac or other documented Coach classic; those comparisons are weakened by the silver hardware and contrasting embossed base.",
        "Condition: Good to Very Good; leather shows substantial creasing and wrinkling but no obvious holes or broken hardware in the exterior photos. Interior condition and odor are unknown.",
        "Closest Coach silhouette would be Duffle Sac (9085) but this bag lacks required Coach traits: silver hardware vs solid brass, metal cord-lock vs leather laces, snap-button strap vs buckle-adjust both sides, embossed base band vs all glove-tanned, and no creed\/hangtag shown, so no Coach model is ranked",
        "Condition: Very Good to Good based on exterior only; leather intact with light wear, bottom clean in photo 6, but interior not shown so lining unknown and grade capped"
    ],
    "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 silver-tone rings, clasps, drawstring stopper, and strap hardware visible in photos 1-6; no branding visible",
        "leather_description": "Black textured leather or leather-like material; contrasting embossed crocodile-like panel around the base is visible in photos 1-4",
        "lining_description": "not_visible",
        "strap_construction": "Long adjustable leather shoulder strap attached through rings and tabs; visible in photos 1-3 and 6",
        "stitching_description": "Visible exterior stitching is generally straight and machine-sewn; some areas show heavier wrinkling and uneven leather gathers, photos 1-6"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0018,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.08,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.06,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a leather bucket-style handbag with a drawstring closure and shoulder strap",
                    "photo 1: construction appears substantial and the leather is visibly textured"
                ],
                "negative_evidence": [
                    "photo 1: no visible Coach wordmark, horse-and-carriage, creed patch, hangtag, or other Coach identifier",
                    "photo 2: bright silver-tone hardware is not typical of classic vintage Coach bucket bags, which commonly use solid brass hardware",
                    "photo 1: the base uses a crocodile-embossed or crocodile-like contrasting panel, unlike the straightforward glove-tanned construction associated with many vintage Coach classics",
                    "photo 3: the silhouette and drawstring construction do not closely match a clearly identifiable catalog Coach model",
                    "photo 4: hardware and strap attachment appear generic rather than characteristically Coach"
                ],
                "missing_information": [
                    "photo 7: interior emptied and photographed clearly, including the back wall and any sewn leather creed patch",
                    "photo 8: close-up of any interior fabric tag, zipper pull, or brand stamp",
                    "photo 9: close-ups of all hardware, including any hidden markings",
                    "photo 10: seller-stated dimensions and country-of-origin information"
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible across the supplied exterior photos; this is more consistent with an unbranded or lookalike leather bag than a misidentified vintage Coach",
                    "The bright silver-tone hardware and generic drawstring bucket construction are inconsistent with the strongest vintage Coach indicators"
                ],
                "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 silver-tone rings, clasps, drawstring stopper, and strap hardware visible in photos 1-6; no branding visible",
                    "leather_description": "Black textured leather or leather-like material; contrasting embossed crocodile-like panel around the base is visible in photos 1-4",
                    "lining_description": "not_visible",
                    "strap_construction": "Long adjustable leather shoulder strap attached through rings and tabs; visible in photos 1-3 and 6",
                    "stitching_description": "Visible exterior stitching is generally straight and machine-sewn; some areas show heavier wrinkling and uneven leather gathers, photos 1-6"
                },
                "possible_model_reasoning": [
                    "The bag is a genuine handbag, but its drawstring bucket silhouette does not provide a persuasive match to a listed vintage Coach model; no Coach style number is visible.",
                    "The visible construction is more consistent with a generic leather bucket bag than with a Coach Duffle Sac or other documented Coach classic; those comparisons are weakened by the silver hardware and contrasting embossed base.",
                    "Condition: Good to Very Good; leather shows substantial creasing and wrinkling but no obvious holes or broken hardware in the exterior photos. Interior condition and odor are unknown."
                ],
                "confidence": 0.83,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-5: no Coach identifier visible to authenticate - no creed, wordmark, or hangtag shown",
                    "photo 4: silver-tone metal cord-lock \/ toggle on drawstring is inconsistent with vintage Coach Duffle Sac leather-lace closure"
                ],
                "authenticity_confidence": 0.06,
                "coach_probability": 0.06,
                "confidence": 0.72,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.68,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "interior views emptied showing lining and any creed patch or fabric tags",
                    "creed patch straight-on in raking light if present",
                    "close-up of any interior brand stamp, fabric label, or Made-in line",
                    "hardware stamps on rings, buckle, and cord-lock",
                    "seller-stated dimensions for scale"
                ],
                "negative_evidence": [
                    "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 1,4,5: silver-tone hardware throughout, not solid brass vintage Coach hardware",
                    "photo 4: metal cord-lock \/ barrel toggle on drawstring, not Coach classic leather drawstring",
                    "photo 1-3,5: croc-embossed smooth base band contrasting with pebbled body, not a vintage Coach classic treatment",
                    "photo 1,5: thin strap attaches with snap buttons and small buckle, not Coach dogleash clips or dual-buckle Duffle Sac strap",
                    "photo 1-6: no turnlock present"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone metal rings, snap buttons, buckle and barrel-type drawstring lock; tarnish\/wear visible in photo 4; no COACH engraving visible",
                    "leather_description": "black pebbled grain leather body with smoother embossed base band; soft slouchy appearance in photos 1-3",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "dark thread, straight seams visible in photos 2-3; no contrast thread; detail limited by resolution",
                    "strap_construction": "single thin adjustable shoulder\/crossbody strap with buckle adjustment and snap-button ends attached to top rings",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: black leather drawstring bucket handbag shape broadly in the family that includes Coach Duffle Sac types",
                    "photo 1-3: genuine-appearing pebbled leather with soft patina consistent with older leather bag"
                ],
                "possible_model_reasoning": [
                    "Closest Coach silhouette would be Duffle Sac (9085) but this bag lacks required Coach traits: silver hardware vs solid brass, metal cord-lock vs leather laces, snap-button strap vs buckle-adjust both sides, embossed base band vs all glove-tanned, and no creed\/hangtag shown, so no Coach model is ranked",
                    "Condition: Very Good to Good based on exterior only; leather intact with light wear, bottom clean in photo 6, but interior not shown so lining unknown and grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.06,
                "vintage_probability": 0.25
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 33093,
            "output_tokens": 805,
            "total_tokens": 33898,
            "estimated_cost_usd": 0.015169
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 35565,
            "output_tokens": 1437,
            "total_tokens": 37002,
            "estimated_cost_usd": 0.008263
        }
    ]
}