Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.02,
    "vintage_probability": 0.575,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.73,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.895,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 22.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a handbag-sized envelope-style purse with a flap closure and shoulder straps.",
        "photo 2: Gold-tone ring hardware is visible at the strap attachment.",
        "photo 3: Brown satin-like lining is visible inside the crocheted strap."
    ],
    "negative_evidence": [
        "photos 1-6: The bag is constructed from crocheted\/knitted textile rather than Coach's characteristic leather, suede, or signature canvas.",
        "photos 1 and 5: The closure is a crocheted button-and-loop closure, not a recognizable Coach turnlock, kisslock, or Coach-branded closure.",
        "photos 1-6: No COACH wordmark, horse-and-carriage mark, creed patch, serial\/style number, or Coach hangtag is visible.",
        "photos 2, 4, and 6: Visible hardware consists of simple gold-tone rings; no distinctive Coach hardware is shown.",
        "photo 3: The interior\/strap area appears satin-lined, which is not consistent with a classic vintage glove-tanned Coach handbag.",
        "photo 1-6: entire bag body and strap are handmade brown crocheted knit yarn, not glove-tanned leather",
        "photo 2-3: brown satin lining visible, not unlined suede or Coach lining",
        "photo 1,5: flap closure is crocheted button with loop, no turnlock",
        "photo 1-6: no creed patch, no COACH wordmark, no hangtag, no brass Coach hardware visible"
    ],
    "missing_information": [
        "A fully opened interior photo showing all lining, pockets, labels, and seams.",
        "Close-up photos of any interior or exterior labels, stamps, or tags.",
        "Full front, back, side, bottom, and strap views to evaluate overall construction and condition.",
        "Seller's claimed 1970s age is not independently verifiable from the photos."
    ],
    "authenticity_concerns": [
        "The textile crochet construction and button closure are inconsistent with the vintage Coach handbag construction described in the reference catalog.",
        "The listing's 1970s date is seller-stated only; no period brand or manufacturing identifier is visible.",
        "This appears to be an unbranded handmade or textile vintage-style purse rather than a Coach lookalike with a transplanted Coach identifier."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the bag lacks Coach identifiers and uses crocheted textile construction with a button-and-loop closure.",
        "The envelope silhouette alone is generic and insufficient for a Coach attribution.",
        "Condition: approximately Very Good based on clean-looking exterior and intact visible crochet, but the full interior, bottom, corners, and strap stress points are not shown.",
        "No Coach identifier visible in any photo: no creed, no wordmark, no hangtag, no solid-brass turnlock",
        "Material and construction exclude vintage Coach: crochet\/macrame and satin lining per triage rule coach_probability <=0.05",
        "Silhouette is handmade envelope flap with button-loop, no match in Coach catalog sections 4.1-4.3",
        "Condition: Very Good per seller text and photos 4-6 showing clean intact crochet with no visible damage; interior emptied view and bottom view not shown so grading 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": "Simple gold-tone circular rings are visible at strap attachments in photos 2, 4, and 6; no Coach engraving is visible.",
        "leather_description": "not_visible; the body appears to be brown crocheted or knitted textile, not leather.",
        "lining_description": "Brown satin-like lining is visible along the strap\/interior edge in photo 3; the full interior is not shown.",
        "strap_construction": "Two non-adjustable crocheted\/textile straps are visible, with satin-like lining and ring attachments in photos 2, 3, 4, and 6.",
        "stitching_description": "Crocheted\/knitted loop construction with scalloped crocheted edges is visible throughout photos 1 and 4-6; conventional leather-bag stitching is not visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0036,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.65,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a handbag-sized envelope-style purse with a flap closure and shoulder straps.",
                    "photo 2: Gold-tone ring hardware is visible at the strap attachment.",
                    "photo 3: Brown satin-like lining is visible inside the crocheted strap."
                ],
                "negative_evidence": [
                    "photos 1-6: The bag is constructed from crocheted\/knitted textile rather than Coach's characteristic leather, suede, or signature canvas.",
                    "photos 1 and 5: The closure is a crocheted button-and-loop closure, not a recognizable Coach turnlock, kisslock, or Coach-branded closure.",
                    "photos 1-6: No COACH wordmark, horse-and-carriage mark, creed patch, serial\/style number, or Coach hangtag is visible.",
                    "photos 2, 4, and 6: Visible hardware consists of simple gold-tone rings; no distinctive Coach hardware is shown.",
                    "photo 3: The interior\/strap area appears satin-lined, which is not consistent with a classic vintage glove-tanned Coach handbag."
                ],
                "missing_information": [
                    "A fully opened interior photo showing all lining, pockets, labels, and seams.",
                    "Close-up photos of any interior or exterior labels, stamps, or tags.",
                    "Full front, back, side, bottom, and strap views to evaluate overall construction and condition.",
                    "Seller's claimed 1970s age is not independently verifiable from the photos."
                ],
                "authenticity_concerns": [
                    "The textile crochet construction and button closure are inconsistent with the vintage Coach handbag construction described in the reference catalog.",
                    "The listing's 1970s date is seller-stated only; no period brand or manufacturing identifier is visible.",
                    "This appears to be an unbranded handmade or textile vintage-style purse rather than a Coach lookalike with a transplanted Coach identifier."
                ],
                "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": "Simple gold-tone circular rings are visible at strap attachments in photos 2, 4, and 6; no Coach engraving is visible.",
                    "leather_description": "not_visible; the body appears to be brown crocheted or knitted textile, not leather.",
                    "lining_description": "Brown satin-like lining is visible along the strap\/interior edge in photo 3; the full interior is not shown.",
                    "strap_construction": "Two non-adjustable crocheted\/textile straps are visible, with satin-like lining and ring attachments in photos 2, 3, 4, and 6.",
                    "stitching_description": "Crocheted\/knitted loop construction with scalloped crocheted edges is visible throughout photos 1 and 4-6; conventional leather-bag stitching is not visible."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the bag lacks Coach identifiers and uses crocheted textile construction with a button-and-loop closure.",
                    "The envelope silhouette alone is generic and insufficient for a Coach attribution.",
                    "Condition: approximately Very Good based on clean-looking exterior and intact visible crochet, but the full interior, bottom, corners, and strap stress points are not shown."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 15,
                "estimated_resale_low": 5,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.95,
                "missing_information": [],
                "negative_evidence": [
                    "photo 1-6: entire bag body and strap are handmade brown crocheted knit yarn, not glove-tanned leather",
                    "photo 2-3: brown satin lining visible, not unlined suede or Coach lining",
                    "photo 1,5: flap closure is crocheted button with loop, no turnlock",
                    "photo 1-6: no creed patch, no COACH wordmark, no hangtag, no brass Coach hardware visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone metal ring at strap attachment visible in photo 2 and photo 6; no turnlock, no stamped Coach hardware",
                    "leather_description": "no leather visible; light brown crocheted knit yarn body and strap",
                    "lining_description": "brown satin lining visible in photo 2 and photo 3",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "no leather stitching; crochet knit construction throughout",
                    "strap_construction": "non-adjustable double crocheted strap with satin underside visible in photo 3",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any photo: no creed, no wordmark, no hangtag, no solid-brass turnlock",
                    "Material and construction exclude vintage Coach: crochet\/macrame and satin lining per triage rule coach_probability <=0.05",
                    "Silhouette is handmade envelope flap with button-loop, no match in Coach catalog sections 4.1-4.3",
                    "Condition: Very Good per seller text and photos 4-6 showing clean intact crochet with no visible damage; interior emptied view and bottom view not shown so grading capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 5,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.5
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18181,
            "output_tokens": 845,
            "total_tokens": 19026,
            "estimated_cost_usd": 0.0093
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18736,
            "output_tokens": 1262,
            "total_tokens": 19998,
            "estimated_cost_usd": 0.004757
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    ]
}