Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.06,
    "vintage_probability": 0.415,
    "authenticity_confidence": 0.055,
    "image_quality_score": 0.73,
    "seller_misidentification_probability": 0.06,
    "confidence": 0.7,
    "recommended_max_bid": 10,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: structured leather handbag with substantial metal frame and two handles",
        "photo 2: leather-like exterior and gold-tone zipper are visible",
        "photo 1-2: leather handbag with metal hardware in population where misidentified vintage could hide",
        "photo 1-2: navy color and simple unlogoed exterior consistent with vintage leather bags generally"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, carriage, hangtag, or creed patch",
        "photo 1: silhouette and framed construction do not closely match the listed classic vintage Coach turnlock styles",
        "photos 2-4: interior is fabric-lined and divided by metal frame compartments, unlike many classic unlined glove-tanned Coach bags",
        "photos 2-4: no Coach identifier or readable brand marking is visible",
        "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or hangtag visible",
        "photo 1-4: no turnlock present; closure is a top kisslock \/ frame clasp, not Coach classic turnlock geometry",
        "photo 3-4: bag is lined in navy material, not unlined suede-back glove-tanned interior of 1970s-1990s Coach classics",
        "photo 2: exterior back zip with gold-tone zipper, no Talon\/YKK stamp legible and no Coach construction cues",
        "photo 1: dual fixed top-handle tote silhouette with back zip does not match catalog City Bag, Willis, Court, Station, Dinky or other classic Coach styles"
    ],
    "missing_information": [
        "photo 1: bottom, corners, and side views are not shown",
        "photos 2-4: interior wall labels, pockets, and any sewn-in brand or country tag are not shown clearly",
        "photo 2: zipper pull and hardware markings need a closer view",
        "seller-stated dimensions and strap construction are not provided",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light not shown",
        "bottom and corners and side views not shown",
        "close-up of zipper pull brand stamp and kisslock frame markings not shown",
        "hangtag \/ wordmark \/ Made-in stamp not shown - request both faces",
        "seller-stated dimensions and scale reference not provided"
    ],
    "authenticity_concerns": [
        "photos 1-4: the bag lacks the creed, wordmark, hangtag, and other Coach identifiers needed to support Coach manufacture",
        "photos 2-4: lined multi-compartment frame construction is more consistent with a generic vintage-style handbag than a classic vintage Coach model"
    ],
    "possible_model_reasoning": [
        "photos 1-4: no Coach catalog model is supported; the structured framed top and multiple interior compartments are generic features rather than a distinctive Coach match",
        "photos 1-4: no readable creed or serial is present, so era and manufacture cannot be established from Coach identifiers",
        "Condition: Very Good provisionally; exterior appears intact with light creasing, but bottom, corners, odor, and full interior condition are not adequately documented",
        "No Coach identifier visible so no catalog match is supportable; kisslock frame tote with back zip and fixed double handles does not correspond to turnlock flap classics (Willis 9927, Court 9870, Station 5130, City Bag 9790, Dinky 9375). Condition: appears Good to Very Good for a generic vintage bag - exterior clean with no corner wear shown (photo 1), but bottom, interior staining, odor and frame function not shown so 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": "photos 1-4: gold-tone metal frame closure and zipper hardware; no visible Coach engraving; no turnlock or hangtag shown",
        "leather_description": "photos 1-2: dark navy or near-black smooth, moderately glossy leather-like exterior with light creasing; exact leather type is not verifiable",
        "lining_description": "photos 3-4: dark navy smooth lining visible in multiple compartments; material is not verifiable",
        "strap_construction": "photo 1: two fixed rounded handles attached directly to the upper body; no detachable shoulder strap is visible",
        "stitching_description": "photos 1-2: generally even perimeter and handle stitching is visible, though close-up stress-point inspection is unavailable"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0041,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.04,
                "vintage_probability": 0.28,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: structured leather handbag with substantial metal frame and two handles",
                    "photo 2: leather-like exterior and gold-tone zipper are visible"
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, carriage, hangtag, or creed patch",
                    "photo 1: silhouette and framed construction do not closely match the listed classic vintage Coach turnlock styles",
                    "photos 2-4: interior is fabric-lined and divided by metal frame compartments, unlike many classic unlined glove-tanned Coach bags",
                    "photos 2-4: no Coach identifier or readable brand marking is visible"
                ],
                "missing_information": [
                    "photo 1: bottom, corners, and side views are not shown",
                    "photos 2-4: interior wall labels, pockets, and any sewn-in brand or country tag are not shown clearly",
                    "photo 2: zipper pull and hardware markings need a closer view",
                    "seller-stated dimensions and strap construction are not provided"
                ],
                "authenticity_concerns": [
                    "photos 1-4: the bag lacks the creed, wordmark, hangtag, and other Coach identifiers needed to support Coach manufacture",
                    "photos 2-4: lined multi-compartment frame construction is more consistent with a generic vintage-style handbag than a classic vintage Coach model"
                ],
                "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 1-4: gold-tone metal frame closure and zipper hardware; no visible Coach engraving; no turnlock or hangtag shown",
                    "leather_description": "photos 1-2: dark navy or near-black smooth, moderately glossy leather-like exterior with light creasing; exact leather type is not verifiable",
                    "lining_description": "photos 3-4: dark navy smooth lining visible in multiple compartments; material is not verifiable",
                    "strap_construction": "photo 1: two fixed rounded handles attached directly to the upper body; no detachable shoulder strap is visible",
                    "stitching_description": "photos 1-2: generally even perimeter and handle stitching is visible, though close-up stress-point inspection is unavailable"
                },
                "possible_model_reasoning": [
                    "photos 1-4: no Coach catalog model is supported; the structured framed top and multiple interior compartments are generic features rather than a distinctive Coach match",
                    "photos 1-4: no readable creed or serial is present, so era and manufacture cannot be established from Coach identifiers",
                    "Condition: Very Good provisionally; exterior appears intact with light creasing, but bottom, corners, odor, and full interior condition are not adequately documented"
                ],
                "confidence": 0.78,
                "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": 0.08,
                "coach_probability": 0.08,
                "confidence": 0.62,
                "estimated_era": "unknown",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.68,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light not shown",
                    "bottom and corners and side views not shown",
                    "close-up of zipper pull brand stamp and kisslock frame markings not shown",
                    "hangtag \/ wordmark \/ Made-in stamp not shown - request both faces",
                    "seller-stated dimensions and scale reference not provided"
                ],
                "negative_evidence": [
                    "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or hangtag visible",
                    "photo 1-4: no turnlock present; closure is a top kisslock \/ frame clasp, not Coach classic turnlock geometry",
                    "photo 3-4: bag is lined in navy material, not unlined suede-back glove-tanned interior of 1970s-1990s Coach classics",
                    "photo 2: exterior back zip with gold-tone zipper, no Talon\/YKK stamp legible and no Coach construction cues",
                    "photo 1: dual fixed top-handle tote silhouette with back zip does not match catalog City Bag, Willis, Court, Station, Dinky or other classic Coach styles"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone kisslock frame with rectangular clasp (photo 3-4) and gold-tone back exterior zipper (photo 2); tone and age consistent with vintage but no COACH engraving visible",
                    "leather_description": "smooth navy blue leather with light grain, even tone and light sheen (photo 1-2); no glove-tanned patina or scars visible",
                    "lining_description": "navy lined interior, appears leather or coated leather, with center zip compartment (photo 3-4); not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight edge stitching tone-matched on handles and top edge (photo 1); no irregularity visible at this resolution",
                    "strap_construction": "two fixed short top handles stitched directly to body, no buckle adjustment or dogleash clips (photo 1)",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-2: leather handbag with metal hardware in population where misidentified vintage could hide",
                    "photo 1-2: navy color and simple unlogoed exterior consistent with vintage leather bags generally"
                ],
                "possible_model_reasoning": [
                    "No Coach identifier visible so no catalog match is supportable; kisslock frame tote with back zip and fixed double handles does not correspond to turnlock flap classics (Willis 9927, Court 9870, Station 5130, City Bag 9790, Dinky 9375). Condition: appears Good to Very Good for a generic vintage bag - exterior clean with no corner wear shown (photo 1), but bottom, interior staining, odor and frame function not shown so grade capped."
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.08,
                "vintage_probability": 0.55
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
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            "output_tokens": 774,
            "total_tokens": 17852,
            "estimated_cost_usd": 0.008689
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17539,
            "output_tokens": 1403,
            "total_tokens": 18942,
            "estimated_cost_usd": 0.00463
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}