Vintage Coach Hunter

{
    "is_handbag_probability": 0.215,
    "coach_probability": 0.02,
    "vintage_probability": 0.035,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.845,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.93,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 20,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The item is visibly a drawstring backpack rather than a conventional Coach handbag.",
        "photos 1-7: Burgundy woven textile body with cream\/red souvenir lettering reading \u201cI \u2665 SINGAPORE,\u201d not a Coach wordmark or Coach horse-and-carriage.",
        "photos 1-7: The repeated motif is a generic\/novelty monogram-style pattern, not identifiable Coach Signature C canvas.",
        "photos 1, 3, 6: Silver-tone strap adjusters and drawstring hardware are inconsistent with classic vintage Coach construction, which typically uses substantial brass hardware.",
        "photo 7: Textile-lined interior is visible, with no Coach creed patch, serial\/style number, or brand label.",
        "listing title: \u201cI Love Singapore\u201d identifies the bag as a souvenir item; seller brand is \u201cUnbranded.\u201d",
        "photo 1,3,4: woven knit textile backpack with all-over I LOVE SINGAPORE print, not glove-tanned leather",
        "photo 1-6: no solid brass hardware, no turnlock, no leather hangtag, no creed patch, no COACH wordmark",
        "photo 5: silver-tone buckles and snap on nylon webbing straps, not vintage Coach brass",
        "photo 6: unlined knit interior with same souvenir print, not suede-back glove-tan or Coach lining",
        "photo 1-4: souvenir I HEART SINGAPORE motif is not a Coach signature C pattern and never used by Coach"
    ],
    "missing_information": [
        "photo 7: No sewn-in brand or care label is visible; a close-up of all interior seams and pockets could confirm whether any maker label is present.",
        "photo 2: No bottom or side construction close-ups showing material composition or manufacturer markings.",
        "Seller-stated material, country of manufacture, and approximate age are not provided.",
        "No Coach creed, wordmark, or hangtag visible to verify - none expected on this souvenir textile type",
        "Country \/ content tag not shown, irrelevant to Coach ID"
    ],
    "authenticity_concerns": [
        "photos 1-7: The novelty monogram textile and souvenir wording are lookalike\/non-Coach design cues, not Coach identifiers.",
        "photos 1-7: No creed, serial\/style number, Coach wordmark, hangtag, or horse-and-carriage identifier is visible.",
        "photo 7: The textile construction and lining do not match the glove-tanned leather construction associated with the likely vintage Coach models."
    ],
    "possible_model_reasoning": [
        "Backpack silhouette with drawstring and flap is not a catalog vintage Coach classic shape; Coach Daypack 9791 was leather, not knit",
        "Materials, hardware finish, and souvenir branding are inconsistent with every Coach era from pre-1975 to present",
        "Condition: Like New \/ Mint souvenir; knit appears clean and intact (photos 1-6), no leather to grade for rehab"
    ],
    "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: Silver-tone metal drawstring ends, snap\/button hardware, and rectangular strap adjusters; no Coach engraving visible.",
        "leather_description": "photos 1-7: No leather is visible; the body appears to be woven textile\/jacquard fabric with webbing straps.",
        "lining_description": "photo 7: Interior appears to be the same or similar patterned textile, with light-colored fabric trim; no brand label visible.",
        "strap_construction": "photos 1, 3, 6: Burgundy woven webbing shoulder straps with small silver-tone adjustable buckles; cream drawstrings with metal ends.",
        "stitching_description": "photos 2, 4, 6-7: Machine-stitched textile construction is visible; stitching appears functional but no specialized Coach construction cue is apparent."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.002,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.18,
                "coach_probability": 0.02,
                "vintage_probability": 0.04,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.94,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The item is visibly a drawstring backpack rather than a conventional Coach handbag.",
                    "photos 1-7: Burgundy woven textile body with cream\/red souvenir lettering reading \u201cI \u2665 SINGAPORE,\u201d not a Coach wordmark or Coach horse-and-carriage.",
                    "photos 1-7: The repeated motif is a generic\/novelty monogram-style pattern, not identifiable Coach Signature C canvas.",
                    "photos 1, 3, 6: Silver-tone strap adjusters and drawstring hardware are inconsistent with classic vintage Coach construction, which typically uses substantial brass hardware.",
                    "photo 7: Textile-lined interior is visible, with no Coach creed patch, serial\/style number, or brand label.",
                    "listing title: \u201cI Love Singapore\u201d identifies the bag as a souvenir item; seller brand is \u201cUnbranded.\u201d"
                ],
                "missing_information": [
                    "photo 7: No sewn-in brand or care label is visible; a close-up of all interior seams and pockets could confirm whether any maker label is present.",
                    "photo 2: No bottom or side construction close-ups showing material composition or manufacturer markings.",
                    "Seller-stated material, country of manufacture, and approximate age are not provided."
                ],
                "authenticity_concerns": [
                    "photos 1-7: The novelty monogram textile and souvenir wording are lookalike\/non-Coach design cues, not Coach identifiers.",
                    "photos 1-7: No creed, serial\/style number, Coach wordmark, hangtag, or horse-and-carriage identifier is visible.",
                    "photo 7: The textile construction and lining do not match the glove-tanned leather construction associated with the likely vintage Coach models."
                ],
                "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: Silver-tone metal drawstring ends, snap\/button hardware, and rectangular strap adjusters; no Coach engraving visible.",
                    "leather_description": "photos 1-7: No leather is visible; the body appears to be woven textile\/jacquard fabric with webbing straps.",
                    "lining_description": "photo 7: Interior appears to be the same or similar patterned textile, with light-colored fabric trim; no brand label visible.",
                    "strap_construction": "photos 1, 3, 6: Burgundy woven webbing shoulder straps with small silver-tone adjustable buckles; cream drawstrings with metal ends.",
                    "stitching_description": "photos 2, 4, 6-7: Machine-stitched textile construction is visible; stitching appears functional but no specialized Coach construction cue is apparent."
                },
                "possible_model_reasoning": [],
                "confidence": 0.96,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.9,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 15,
                "estimated_resale_low": 5,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.25,
                "missing_information": [
                    "No Coach creed, wordmark, or hangtag visible to verify - none expected on this souvenir textile type",
                    "Country \/ content tag not shown, irrelevant to Coach ID"
                ],
                "negative_evidence": [
                    "photo 1,3,4: woven knit textile backpack with all-over I LOVE SINGAPORE print, not glove-tanned leather",
                    "photo 1-6: no solid brass hardware, no turnlock, no leather hangtag, no creed patch, no COACH wordmark",
                    "photo 5: silver-tone buckles and snap on nylon webbing straps, not vintage Coach brass",
                    "photo 6: unlined knit interior with same souvenir print, not suede-back glove-tan or Coach lining",
                    "photo 1-4: souvenir I HEART SINGAPORE motif is not a Coach signature C pattern and never used by Coach"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone slide buckles on webbing straps, small snap on flap, cord drawstring with metal aglets; no brass, no turnlock",
                    "leather_description": "no leather visible; burgundy and cream woven knit textile with I LOVE SG \/ SINGAPORE jacquard",
                    "lining_description": "unlined - interior is reverse of same knit textile, no pocket or creed patch visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible as leather stitching; knit construction with bound top edge",
                    "strap_construction": "two burgundy woven nylon webbing backpack straps with metal adjustment slides plus top loop, drawstring closure",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Backpack silhouette with drawstring and flap is not a catalog vintage Coach classic shape; Coach Daypack 9791 was leather, not knit",
                    "Materials, hardware finish, and souvenir branding are inconsistent with every Coach era from pre-1975 to present",
                    "Condition: Like New \/ Mint souvenir; knit appears clean and intact (photos 1-6), no leather to grade for rehab"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
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            "output_tokens": 797,
            "total_tokens": 26332,
            "estimated_cost_usd": 0.012127
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 26327,
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}