Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.315,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.635,
    "seller_misidentification_probability": 0.1,
    "confidence": 0.78,
    "recommended_max_bid": 9,
    "estimated_resale_low": 10,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1-6: is a leather shoulder handbag of vintage type with adjustable strap"
    ],
    "negative_evidence": [
        "photo 1: handbag is visible, but no COACH wordmark, horse-and-carriage, creed patch, or recognizable Coach hardware is visible.",
        "photos 1, 2, 4, 5: heavily embossed floral\/ornamental leather and a large circular decorative medallion are not characteristic of the classic Coach catalog styles shown in the reference.",
        "photos 1, 2, 4: strap and bag construction appear generic; there is no Coach-style turnlock closure or visible Coach hangtag.",
        "photo 3: bottom has four round metal feet and a diamond tooling pattern, with no visible Coach marking.",
        "listing description: seller identifies the item only as 'Vintage' and provides no Coach-specific details; this is weak neutral evidence, not brand support.",
        "photo 1,2,4,5: all-over deep floral tooling \/ embossing with roses and scrollwork - never a Coach classic finish",
        "photo 4,6: large Aztec-calendar circular medallion embossed on side - not a Coach motif",
        "photo 3,6: quilted \/ diamond-tooled bottom with four silver-tone dome feet - hardware tone and bottom treatment unlike 1970s-1990s solid-brass Coach",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 1-6: no turnlock closure visible; silhouette with front\/back slip pockets and top opening does not match catalog Court\/Station\/Willis\/City Bag"
    ],
    "missing_information": [
        "photo 1-6: interior is not shown, so the claimed compartments, lining, stains, and any brand label or creed cannot be verified.",
        "A straight-on close-up of every interior wall, zipper pocket, and seam tag is needed.",
        "A close-up of the circular exterior emblem and all hardware is needed to identify a possible maker.",
        "The seller's claimed corner cracks should be shown in close-up.",
        "Strap attachment points, underside, and zipper pulls are not shown closely enough for maker identification.",
        "interior views including creed patch area on back wall \/ slip pocket not shown",
        "close-up of any maker stamp, wordmark, or Made-in line not shown",
        "hardware close-ups (zipper pull brand, strap clips) not shown",
        "seller-stated lining stains and corner cracks not clearly visible - need interior and corner detail"
    ],
    "authenticity_concerns": [
        "photos 1, 4: decorative embossed floral styling and oversized circular medallion are lookalike\/generic cues rather than Coach identifiers.",
        "photos 1-6: no Coach identifier is visible, so Coach manufacture and authenticity cannot be supported from the listing photos.",
        "photo 1-6: heavily tooled \/ embossed floral and Aztec-calendar medallion decoration inconsistent with vintage Coach glove-tanned classics which are smooth tone-on-tone"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the visible embossed floral body, circular decorative emblem, riveted bottom, and absence of a turnlock or Coach identifier do not correspond to the listed classic Coach silhouettes.",
        "Condition: Good to Fair; seller states corner cracks, and photos show visible wear\/dullness and possible edge\/corner damage, but the interior and functional hardware are not shown.",
        "No Coach model fits: heavily tooled floral + Aztec medallion, silver-tone feet, no creed\/wordmark\/turnlock\/hangtag, construction unlike any Classic glove-tanned catalog style",
        "Condition: Good to Fair; seller states lining stains and corner cracks, consistent with used tooled bag; interior not shown so cap grade"
    ],
    "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 1-6: small round gold-tone rivets\/feet and strap hardware are visible; no Coach-engraved hardware or turnlock is visible.",
        "leather_description": "photos 1-6: black leather or leather-like material with extensive raised floral tooling\/embossing and a glossy finish; exact material cannot be confirmed.",
        "lining_description": "not_visible",
        "strap_construction": "photos 1, 2, 3, 5: long adjustable shoulder strap with a buckle-like adjustment section; attachment construction is only partly visible.",
        "stitching_description": "photos 1-6: perimeter stitching is visible and appears generally even, but close-up quality is insufficient to assess construction fully."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0046,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.72,
                "seller_misidentification_probability": 0.18,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: handbag is visible, but no COACH wordmark, horse-and-carriage, creed patch, or recognizable Coach hardware is visible.",
                    "photos 1, 2, 4, 5: heavily embossed floral\/ornamental leather and a large circular decorative medallion are not characteristic of the classic Coach catalog styles shown in the reference.",
                    "photos 1, 2, 4: strap and bag construction appear generic; there is no Coach-style turnlock closure or visible Coach hangtag.",
                    "photo 3: bottom has four round metal feet and a diamond tooling pattern, with no visible Coach marking.",
                    "listing description: seller identifies the item only as 'Vintage' and provides no Coach-specific details; this is weak neutral evidence, not brand support."
                ],
                "missing_information": [
                    "photo 1-6: interior is not shown, so the claimed compartments, lining, stains, and any brand label or creed cannot be verified.",
                    "A straight-on close-up of every interior wall, zipper pocket, and seam tag is needed.",
                    "A close-up of the circular exterior emblem and all hardware is needed to identify a possible maker.",
                    "The seller's claimed corner cracks should be shown in close-up.",
                    "Strap attachment points, underside, and zipper pulls are not shown closely enough for maker identification."
                ],
                "authenticity_concerns": [
                    "photos 1, 4: decorative embossed floral styling and oversized circular medallion are lookalike\/generic cues rather than Coach identifiers.",
                    "photos 1-6: no Coach identifier is visible, so Coach manufacture and authenticity cannot be supported from the listing photos."
                ],
                "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 1-6: small round gold-tone rivets\/feet and strap hardware are visible; no Coach-engraved hardware or turnlock is visible.",
                    "leather_description": "photos 1-6: black leather or leather-like material with extensive raised floral tooling\/embossing and a glossy finish; exact material cannot be confirmed.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1, 2, 3, 5: long adjustable shoulder strap with a buckle-like adjustment section; attachment construction is only partly visible.",
                    "stitching_description": "photos 1-6: perimeter stitching is visible and appears generally even, but close-up quality is insufficient to assess construction fully."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the visible embossed floral body, circular decorative emblem, riveted bottom, and absence of a turnlock or Coach identifier do not correspond to the listed classic Coach silhouettes.",
                    "Condition: Good to Fair; seller states corner cracks, and photos show visible wear\/dullness and possible edge\/corner damage, but the interior and functional hardware are not shown."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-6: heavily tooled \/ embossed floral and Aztec-calendar medallion decoration inconsistent with vintage Coach glove-tanned classics which are smooth tone-on-tone"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "interior views including creed patch area on back wall \/ slip pocket not shown",
                    "close-up of any maker stamp, wordmark, or Made-in line not shown",
                    "hardware close-ups (zipper pull brand, strap clips) not shown",
                    "seller-stated lining stains and corner cracks not clearly visible - need interior and corner detail"
                ],
                "negative_evidence": [
                    "photo 1,2,4,5: all-over deep floral tooling \/ embossing with roses and scrollwork - never a Coach classic finish",
                    "photo 4,6: large Aztec-calendar circular medallion embossed on side - not a Coach motif",
                    "photo 3,6: quilted \/ diamond-tooled bottom with four silver-tone dome feet - hardware tone and bottom treatment unlike 1970s-1990s solid-brass Coach",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 1-6: no turnlock closure visible; silhouette with front\/back slip pockets and top opening does not match catalog Court\/Station\/Willis\/City Bag"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone dome base studs visible photo 3,6; other hardware not clearly shown",
                    "leather_description": "black leather with heavy embossed \/ tooled floral rose and scroll pattern with gloss; photo 4,6 shows Aztec-calendar medallion; not glove-tanned smooth Coach leather",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible",
                    "strap_construction": "photo 1,2: thin flat adjustable crossbody strap with buckle slide, same black leather",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-6: is a leather shoulder handbag of vintage type with adjustable strap"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: heavily tooled floral + Aztec medallion, silver-tone feet, no creed\/wordmark\/turnlock\/hangtag, construction unlike any Classic glove-tanned catalog style",
                    "Condition: Good to Fair; seller states lining stains and corner cracks, consistent with used tooled bag; interior not shown so cap grade"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.45
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17782,
            "output_tokens": 820,
            "total_tokens": 18602,
            "estimated_cost_usd": 0.009081
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18118,
            "output_tokens": 1218,
            "total_tokens": 19336,
            "estimated_cost_usd": 0.004598
        }
    ]
}