Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.025,
    "vintage_probability": 0.69,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.77,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.83,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 35,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a structured leather or leather-like handbag with a vintage-style silhouette and long shoulder handle.",
        "photo 2: Matching small coin purse and black fabric interior are visible.",
        "photo 3: Four small metal feet and a structured base are visible, consistent with an older formal handbag style."
    ],
    "negative_evidence": [
        "photo 1: No visible COACH wordmark, horse-and-carriage, hangtag, or other Coach branding.",
        "photo 2: Interior shows black fabric lining but no visible Coach creed patch or fabric identification tag.",
        "photo 1: The trapezoidal box shape, paired handles, snap closure, and decorative feet do not closely match the listed classic Coach model silhouettes.",
        "photo 4: Smooth, coated-looking pink exterior and finished edge piping are not characteristic evidence of vintage Coach glove-tanned construction.",
        "photo 5: Handle attachment and stitching appear generic; no Coach-specific hardware or construction marker is visible.",
        "photo 1: rigid trapezoidal box \/ vanity silhouette with knotted twin handles matches no Coach catalog style 1960s-1990s",
        "photo 2: snap-button closure and inset mirror lid, black fabric interior with no creed patch visible on back wall",
        "photo 2: black fabric lining, not unlined suede-back glove-tanned leather of vintage Coach classics",
        "photo 1, photo 2, photo 3: no COACH wordmark, no horse-and-carriage, no leather hangtag, no turnlock visible",
        "photo 3: four plated ball feet with dark tarnish, not solid brass Coach feet",
        "photo 4, photo 5: thin coated leather with edge wear and contrast stitching, not thick matte glove-tanned cowhide"
    ],
    "missing_information": [
        "Straight-on photographs of every interior wall and pocket, especially any leather creed patch or sewn-in label.",
        "Close-up photographs of the snap hardware, handle attachments, and any marks on the coin purse.",
        "Photographs of the exterior sides, bottom, and all seams in natural light.",
        "Any maker, country-of-origin, or material markings hidden inside the bag or coin purse.",
        "No Coach identifiers visible; no creed close-up needed as interior is shown with no patch (photo 2)",
        "No maker label or hardware stamp shown in close-up"
    ],
    "authenticity_concerns": [
        "The bag lacks all visible Coach identifiers and appears more consistent with a generic vintage formal handbag than a Coach design.",
        "The seller's claimed 1960s date cannot be confirmed from the photos; no period brand label or construction-specific provenance is shown."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match from the visible silhouette or hardware; the bag is better treated as an unidentified vintage formal handbag.",
        "The seller's 1960s claim is plausible as a style impression, but the photos do not provide enough period-specific labeling to establish the era. Condition appears Very Good: light surface wear and discoloration are visible, with no obvious major tears or broken hardware; interior and odor status remain incomplete.",
        "No Coach model match: box vanity shape, snap closure, fabric lining, mirror, knotted handles inconsistent with City Bag, Willis, Court, Station, Duffle Sac, Cashin styles",
        "Era reasoning: seller states 1960s; construction is consistent with 1960s non-Coach vanity box bag, but no Cashin cues, no pre-creed label, no striped lining, no industrial hardware",
        "Condition: Very Good to Good; light scuffs\/discoloration, edge wear at flap corner (photo 4), tarnished feet (photo 3), otherwise intact structure"
    ],
    "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": "Small round snap closure visible on the flap, four small metal feet on the base, and a small metal fitting on the coin purse; no Coach engraving is visible.",
        "leather_description": "Smooth light-pink exterior appears leather or leather-like; exact material cannot be confirmed from photos.",
        "lining_description": "Black fabric lining is visible in the main compartment and coin purse; no brand label is visible.",
        "strap_construction": "Long narrow paired handle\/strap with stitched construction and a knotted-looking attachment at the top; no Coach-specific strap hardware visible.",
        "stitching_description": "Visible perimeter and handle stitching is generally even, with some loose or irregular-looking thread at the handle attachment in photo 5."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0016,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.78,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a structured leather or leather-like handbag with a vintage-style silhouette and long shoulder handle.",
                    "photo 2: Matching small coin purse and black fabric interior are visible.",
                    "photo 3: Four small metal feet and a structured base are visible, consistent with an older formal handbag style."
                ],
                "negative_evidence": [
                    "photo 1: No visible COACH wordmark, horse-and-carriage, hangtag, or other Coach branding.",
                    "photo 2: Interior shows black fabric lining but no visible Coach creed patch or fabric identification tag.",
                    "photo 1: The trapezoidal box shape, paired handles, snap closure, and decorative feet do not closely match the listed classic Coach model silhouettes.",
                    "photo 4: Smooth, coated-looking pink exterior and finished edge piping are not characteristic evidence of vintage Coach glove-tanned construction.",
                    "photo 5: Handle attachment and stitching appear generic; no Coach-specific hardware or construction marker is visible."
                ],
                "missing_information": [
                    "Straight-on photographs of every interior wall and pocket, especially any leather creed patch or sewn-in label.",
                    "Close-up photographs of the snap hardware, handle attachments, and any marks on the coin purse.",
                    "Photographs of the exterior sides, bottom, and all seams in natural light.",
                    "Any maker, country-of-origin, or material markings hidden inside the bag or coin purse."
                ],
                "authenticity_concerns": [
                    "The bag lacks all visible Coach identifiers and appears more consistent with a generic vintage formal handbag than a Coach design.",
                    "The seller's claimed 1960s date cannot be confirmed from the photos; no period brand label or construction-specific provenance is shown."
                ],
                "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": "Small round snap closure visible on the flap, four small metal feet on the base, and a small metal fitting on the coin purse; no Coach engraving is visible.",
                    "leather_description": "Smooth light-pink exterior appears leather or leather-like; exact material cannot be confirmed from photos.",
                    "lining_description": "Black fabric lining is visible in the main compartment and coin purse; no brand label is visible.",
                    "strap_construction": "Long narrow paired handle\/strap with stitched construction and a knotted-looking attachment at the top; no Coach-specific strap hardware visible.",
                    "stitching_description": "Visible perimeter and handle stitching is generally even, with some loose or irregular-looking thread at the handle attachment in photo 5."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match from the visible silhouette or hardware; the bag is better treated as an unidentified vintage formal handbag.",
                    "The seller's 1960s claim is plausible as a style impression, but the photos do not provide enough period-specific labeling to establish the era. Condition appears Very Good: light surface wear and discoloration are visible, with no obvious major tears or broken hardware; interior and odor status remain incomplete."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.82,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.72,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "No Coach identifiers visible; no creed close-up needed as interior is shown with no patch (photo 2)",
                    "No maker label or hardware stamp shown in close-up"
                ],
                "negative_evidence": [
                    "photo 1: rigid trapezoidal box \/ vanity silhouette with knotted twin handles matches no Coach catalog style 1960s-1990s",
                    "photo 2: snap-button closure and inset mirror lid, black fabric interior with no creed patch visible on back wall",
                    "photo 2: black fabric lining, not unlined suede-back glove-tanned leather of vintage Coach classics",
                    "photo 1, photo 2, photo 3: no COACH wordmark, no horse-and-carriage, no leather hangtag, no turnlock visible",
                    "photo 3: four plated ball feet with dark tarnish, not solid brass Coach feet",
                    "photo 4, photo 5: thin coated leather with edge wear and contrast stitching, not thick matte glove-tanned cowhide"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone snap closure (photo 2) and four ball feet on bottom (photo 3) with dark tarnish; no turnlock, no stamped zipper pull visible",
                    "leather_description": "light pink smooth coated leather, box-structured; edge scuff at flap corner (photo 4), light soiling on top (photo 5); not glove-tanned full-grain texture",
                    "lining_description": "black fabric interior (photo 2), with mirror mounted under lid",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light contrast stitching along rolled handles (photo 5); no tight tone-matched Coach stitching visible",
                    "strap_construction": "twin short rolled top handles knotted together at top (photo 1), stitched to body sides (photo 5); not buckle-adjustable or dogleash-clip Coach strap",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model match: box vanity shape, snap closure, fabric lining, mirror, knotted handles inconsistent with City Bag, Willis, Court, Station, Duffle Sac, Cashin styles",
                    "Era reasoning: seller states 1960s; construction is consistent with 1960s non-Coach vanity box bag, but no Cashin cues, no pre-creed label, no striped lining, no industrial hardware",
                    "Condition: Very Good to Good; light scuffs\/discoloration, edge wear at flap corner (photo 4), tarnished feet (photo 3), otherwise intact structure"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.6
            }
        }
    ],
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            "output_tokens": 826,
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        {
            "model_name": "meta:muse-spark-1.3-contributor",
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}