Vintage Coach Hunter

{
    "is_handbag_probability": 0.94,
    "coach_probability": 0.015,
    "vintage_probability": 0.54,
    "authenticity_confidence": 0.015,
    "image_quality_score": 0.875,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.945,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: purse is a small embossed brass\/copper metal pillow-box style bag, unlike Coach's leather, suede, canvas, or coated-canvas handbag construction",
        "photo 4: interior is fully lined in blue velvet, not a typical Coach classic interior",
        "photo 1: ornate filigree latch and decorative metal body are not Coach's characteristic turnlock design",
        "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or leather hangtag",
        "photo 2: chain strap and metal body suggest a vintage evening minaudiere or novelty purse rather than a Coach handbag",
        "photo 1: body is embossed brass and copper metal pillow-box, not glove-tanned leather",
        "photo 4: lined in blue velvet, not unlined suede-back leather",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 1,6: filigree hinge latch, not Coach turnlock geometry"
    ],
    "missing_information": [
        "photo 4: no maker's mark or label is visible; inspect the interior, underside, clasp, and chain attachment points for a manufacturer mark",
        "seller-stated country of manufacture and approximate purchase date are unavailable",
        "whether the latch and chain function properly is not fully demonstrated"
    ],
    "authenticity_concerns": [
        "The construction is inconsistent with Coach handbag materials and model designs; it appears to be a non-Coach metal evening purse rather than a Coach item"
    ],
    "possible_model_reasoning": [
        "The silhouette and hinged opening fit a small vintage metal evening purse or minaudiere, not a cataloged Coach leather handbag.",
        "Photo 3: visible patina, surface wear, and greenish oxidation are consistent with aged copper\/brass metal; they do not indicate Coach manufacture.",
        "Condition: Very Good overall, with visible patina, oxidation, and lining wear; no major structural break is visible in the supplied photos.",
        "Metal pillow-box purse with velvet lining is inconsistent with any Coach leather catalog style and Coach materials; no Coach identifier visible in any photo",
        "Condition: Very Good to Excellent for a metal purse; natural patina\/tarnish visible (photo 3,6), velvet interior clean (photo 4)"
    ],
    "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": "Visible embossed brass- and copper-colored metal shell, ornate hinged latch, and braided gold-tone chain strap; no Coach-marked hardware visible.",
        "leather_description": "No leather present; metal body",
        "lining_description": "Photo 4: blue velvet lining in both compartments; lining appears worn or brushed in spots.",
        "strap_construction": "Photos 1, 2, and 5: long braided gold-tone chain attached at the side loops; seller is unsure whether it is original.",
        "stitching_description": "not_visible"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0033,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.68,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.9,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: purse is a small embossed brass\/copper metal pillow-box style bag, unlike Coach's leather, suede, canvas, or coated-canvas handbag construction",
                    "photo 4: interior is fully lined in blue velvet, not a typical Coach classic interior",
                    "photo 1: ornate filigree latch and decorative metal body are not Coach's characteristic turnlock design",
                    "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or leather hangtag",
                    "photo 2: chain strap and metal body suggest a vintage evening minaudiere or novelty purse rather than a Coach handbag"
                ],
                "missing_information": [
                    "photo 4: no maker's mark or label is visible; inspect the interior, underside, clasp, and chain attachment points for a manufacturer mark",
                    "seller-stated country of manufacture and approximate purchase date are unavailable",
                    "whether the latch and chain function properly is not fully demonstrated"
                ],
                "authenticity_concerns": [
                    "The construction is inconsistent with Coach handbag materials and model designs; it appears to be a non-Coach metal evening purse rather than a Coach item"
                ],
                "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": "Visible embossed brass- and copper-colored metal shell, ornate hinged latch, and braided gold-tone chain strap; no Coach-marked hardware visible.",
                    "leather_description": "not_visible",
                    "lining_description": "Photo 4: blue velvet lining in both compartments; lining appears worn or brushed in spots.",
                    "strap_construction": "Photos 1, 2, and 5: long braided gold-tone chain attached at the side loops; seller is unsure whether it is original.",
                    "stitching_description": "not_visible"
                },
                "possible_model_reasoning": [
                    "The silhouette and hinged opening fit a small vintage metal evening purse or minaudiere, not a cataloged Coach leather handbag.",
                    "Photo 3: visible patina, surface wear, and greenish oxidation are consistent with aged copper\/brass metal; they do not indicate Coach manufacture.",
                    "Condition: Very Good overall, with visible patina, oxidation, and lining wear; no major structural break is visible in the supplied photos."
                ],
                "confidence": 0.94,
                "recommended_max_bid": 15,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.01,
                "coach_probability": 0.01,
                "confidence": 0.95,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.85,
                "is_handbag_probability": 0.9,
                "missing_information": [],
                "negative_evidence": [
                    "photo 1: body is embossed brass and copper metal pillow-box, not glove-tanned leather",
                    "photo 4: lined in blue velvet, not unlined suede-back leather",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 1,6: filigree hinge latch, not Coach turnlock geometry"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "Embossed brass and copper metal body with filigree hinged latch clasp; gold-tone twisted chain strap",
                    "leather_description": "No leather present; metal body",
                    "lining_description": "Blue velvet lining",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible",
                    "strap_construction": "Gold-tone twisted-link chain strap, seller states unsure if original",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Metal pillow-box purse with velvet lining is inconsistent with any Coach leather catalog style and Coach materials; no Coach identifier visible in any photo",
                    "Condition: Very Good to Excellent for a metal purse; natural patina\/tarnish visible (photo 3,6), velvet interior clean (photo 4)"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.4
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17788,
            "output_tokens": 716,
            "total_tokens": 18504,
            "estimated_cost_usd": 0.008834
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18125,
            "output_tokens": 1447,
            "total_tokens": 19572,
            "estimated_cost_usd": 0.004783
        }
    ]
}