Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.02,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.765,
    "seller_misidentification_probability": 0.02,
    "confidence": 0.915,
    "recommended_max_bid": 9,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 3: the bag is a generic rectangular multi-zip crossbody with tassel pulls, not a recognizable vintage Coach silhouette.",
        "photo 3: no Coach wordmark, horse-and-carriage emblem, creed patch, or leather hangtag is visible.",
        "photo 4: the interior is shown with generic compartment construction and no Coach creed or fabric identification tag.",
        "photo 5: the bag uses a patterned woven strap and bright silver-tone hardware, unlike the solid-brass hardware typical of many vintage Coach classics.",
        "listing text: seller explicitly describes the material as soft synthetic leather; this is inconsistent with vintage Coach glove-tanned leather.",
        "photos 1-6: the product presentation and new synthetic construction indicate a modern generic fashion bag rather than a vintage Coach item.",
        "photo 3,5: black pebbled-emboss synthetic faux-leather, seller states soft synthetic leather - faux\/PU excludes vintage Coach",
        "photo 1-3,5: multiple exterior zip pockets with tassel zipper pulls and silver-tone hardware, no turnlock flap - silhouette matches modern fast-fashion crossbody, no Coach catalog match",
        "photo 4: black fabric lining with compartment diagram, no unlined glove-tanned suede interior",
        "photo 1-6: no COACH wordmark, no horse-and-carriage, no creed patch, no leather hangtag visible",
        "photo 1,2,5,6: wide patterned guitar\/webbing strap and thin detachable strap with swivel clips - not vintage Coach strap construction",
        "listing states Brand new, never worn, synthetic leather - modern mass-produced bag"
    ],
    "missing_information": [
        "photo 4: no close-up of any interior brand label or sewn fabric tag is provided.",
        "photo 3: no close-up of zipper pulls or hardware markings is provided, although no Coach markings are apparent.",
        "photo 1-6: seller-provided product images do not establish actual manufacturing origin or material composition beyond the listing claim.",
        "no creed patch shown - interior close-up of back wall\/pocket needed to fully exclude (photo 4 shows lining but no patch)",
        "no hardware brand stamps visible",
        "no hangtag or wordmark close-up"
    ],
    "authenticity_concerns": [
        "photos 1-6: this appears to be a generic or lookalike synthetic bag, with no Coach identifiers visible.",
        "listing text: the synthetic-leather material claim is inconsistent with the construction expected of the vintage Coach leather-bag population."
    ],
    "possible_model_reasoning": [
        "photo 3: silhouette and three external zip sections do not closely match the listed vintage Coach classic models.",
        "photos 1-6: no Coach identifier is present, so no Coach model can be responsibly assigned.",
        "Condition: New\/brand new as represented in the listing photos; the bag appears unused, though condition cannot be independently verified from stock-style images.",
        "No Coach model fits: zip-top multi-pocket tassel crossbody with guitar strap and synthetic body has no match in 1970s-1990s glove-tanned catalog (City, Willis, Court, Station, Dinky all flap+turnlock, brass, unlined)",
        "Construction points to modern non-Coach: synthetic leather + fabric lining + silver-tone zippers + tassels + webbing strap is 2000s+ fast-fashion, not Coach glove-tanned era",
        "No identifiers: no creed, no serial, no wordmark, no hangtag, no solid-brass turnlock in any of 6 photos",
        "Condition: New (seller states brand new, never worn; photos show unmarked surface, catalog-style images photo 3-6)"
    ],
    "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 3 and 5: multiple silver-tone zipper pulls, small clips, and strap fittings; no Coach engraving is visible.",
        "leather_description": "photos 1, 3, and 5: smooth, uniform black material with a synthetic-looking finish; listing states soft synthetic leather.",
        "lining_description": "photo 4: black interior with multiple slip compartments; material appears synthetic, but lining fiber is not definitively identifiable.",
        "strap_construction": "photos 1, 5, and 6: detachable adjustable black strap plus a detachable patterned woven replacement strap with silver-tone clips.",
        "stitching_description": "photos 3 and 5: visible machine stitching appears regular and modern; no distinctive vintage Coach construction is evident."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0019,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.02,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 3: the bag is a generic rectangular multi-zip crossbody with tassel pulls, not a recognizable vintage Coach silhouette.",
                    "photo 3: no Coach wordmark, horse-and-carriage emblem, creed patch, or leather hangtag is visible.",
                    "photo 4: the interior is shown with generic compartment construction and no Coach creed or fabric identification tag.",
                    "photo 5: the bag uses a patterned woven strap and bright silver-tone hardware, unlike the solid-brass hardware typical of many vintage Coach classics.",
                    "listing text: seller explicitly describes the material as soft synthetic leather; this is inconsistent with vintage Coach glove-tanned leather.",
                    "photos 1-6: the product presentation and new synthetic construction indicate a modern generic fashion bag rather than a vintage Coach item."
                ],
                "missing_information": [
                    "photo 4: no close-up of any interior brand label or sewn fabric tag is provided.",
                    "photo 3: no close-up of zipper pulls or hardware markings is provided, although no Coach markings are apparent.",
                    "photo 1-6: seller-provided product images do not establish actual manufacturing origin or material composition beyond the listing claim."
                ],
                "authenticity_concerns": [
                    "photos 1-6: this appears to be a generic or lookalike synthetic bag, with no Coach identifiers visible.",
                    "listing text: the synthetic-leather material claim is inconsistent with the construction expected of the vintage Coach leather-bag population."
                ],
                "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 3 and 5: multiple silver-tone zipper pulls, small clips, and strap fittings; no Coach engraving is visible.",
                    "leather_description": "photos 1, 3, and 5: smooth, uniform black material with a synthetic-looking finish; listing states soft synthetic leather.",
                    "lining_description": "photo 4: black interior with multiple slip compartments; material appears synthetic, but lining fiber is not definitively identifiable.",
                    "strap_construction": "photos 1, 5, and 6: detachable adjustable black strap plus a detachable patterned woven replacement strap with silver-tone clips.",
                    "stitching_description": "photos 3 and 5: visible machine stitching appears regular and modern; no distinctive vintage Coach construction is evident."
                },
                "possible_model_reasoning": [
                    "photo 3: silhouette and three external zip sections do not closely match the listed vintage Coach classic models.",
                    "photos 1-6: no Coach identifier is present, so no Coach model can be responsibly assigned.",
                    "Condition: New\/brand new as represented in the listing photos; the bag appears unused, though condition cannot be independently verified from stock-style images."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.92,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "no creed patch shown - interior close-up of back wall\/pocket needed to fully exclude (photo 4 shows lining but no patch)",
                    "no hardware brand stamps visible",
                    "no hangtag or wordmark close-up"
                ],
                "negative_evidence": [
                    "photo 3,5: black pebbled-emboss synthetic faux-leather, seller states soft synthetic leather - faux\/PU excludes vintage Coach",
                    "photo 1-3,5: multiple exterior zip pockets with tassel zipper pulls and silver-tone hardware, no turnlock flap - silhouette matches modern fast-fashion crossbody, no Coach catalog match",
                    "photo 4: black fabric lining with compartment diagram, no unlined glove-tanned suede interior",
                    "photo 1-6: no COACH wordmark, no horse-and-carriage, no creed patch, no leather hangtag visible",
                    "photo 1,2,5,6: wide patterned guitar\/webbing strap and thin detachable strap with swivel clips - not vintage Coach strap construction",
                    "listing states Brand new, never worn, synthetic leather - modern mass-produced bag"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone zipper hardware with chain and tassel zipper pulls, swivel snap clips for straps (photo 3, photo 5)",
                    "leather_description": "black synthetic faux-leather with pebbled emboss, uniform sheen (photo 3, photo 5)",
                    "lining_description": "black fabric lining in main compartment with slip pockets (photo 4)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight edge stitching around panels and zips, visible in front\/side views (photo 3)",
                    "strap_construction": "two detachable straps: wide patterned woven guitar strap and thin black adjustable strap with metal swivel clips (photo 5, photo 6)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: zip-top multi-pocket tassel crossbody with guitar strap and synthetic body has no match in 1970s-1990s glove-tanned catalog (City, Willis, Court, Station, Dinky all flap+turnlock, brass, unlined)",
                    "Construction points to modern non-Coach: synthetic leather + fabric lining + silver-tone zippers + tassels + webbing strap is 2000s+ fast-fashion, not Coach glove-tanned era",
                    "No identifiers: no creed, no serial, no wordmark, no hangtag, no solid-brass turnlock in any of 6 photos",
                    "Condition: New (seller states brand new, never worn; photos show unmarked surface, catalog-style images photo 3-6)"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18393,
            "output_tokens": 747,
            "total_tokens": 19140,
            "estimated_cost_usd": 0.00915
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18953,
            "output_tokens": 1172,
            "total_tokens": 20125,
            "estimated_cost_usd": 0.004728
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}