Vintage Coach Hunter

{
    "is_handbag_probability": 0.54,
    "coach_probability": 0.01,
    "vintage_probability": 0.01,
    "authenticity_confidence": 0.01,
    "image_quality_score": 0.815,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.94,
    "recommended_max_bid": 9,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: Listing title explicitly describes PU leather, which is inconsistent with vintage Coach glove-tanned leather.",
        "photo 1: The item is a backpack-style bag rather than a recognizable vintage Coach handbag silhouette.",
        "photo 1: Large decorative elephant appliqu\u00e9 and ornate printed motif are not Coach identifiers; no Coach horse-and-carriage or paired-C pattern is visible.",
        "photos 1-6: No visible Coach wordmark, creed patch, serial\/style number, or recognizable Coach hangtag.",
        "photos 1-6: The bag uses broad textile-like shoulder straps, shiny plated gold-tone hardware, and a highly synthetic-looking textured surface, consistent with a modern fashion backpack.",
        "photos 1-6: The listing appears to use clean promotional\/product photography rather than documentary photos of a secondhand vintage item.",
        "photo 1: seller title states PU Leather - faux material excludes vintage Coach glove-tanned leather",
        "photo 1, photo 2: large embossed elephant medallion on flap - motif never used by Coach",
        "photo 3, photo 4: bright gold-tone plated zippers, clasps, studs and buckles - not solid brass vintage hardware",
        "photo 3: backpack straps in brown woven fabric with faux-leather trim - not Coach construction",
        "photo 1-4: backpack \/ multi-function silhouette with top handle and convertible straps - no catalog Coach classic match",
        "photo 1-4: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible"
    ],
    "missing_information": [
        "photo 1-6: Interior view, including any brand label, creed patch, fabric tag, or serial\/style number, is not provided.",
        "photo 1-6: No underside, bottom, or close-up of zipper branding is provided.",
        "photo 1-6: Seller-stated dimensions, materials, and country of manufacture are not provided beyond the PU-leather title.",
        "photo 1-4: no interior view shown so lining and creed cannot be checked",
        "photo 1-4: no creed patch close-up shown",
        "photo 1-4: no Coach wordmark, hangtag, or Made-in line visible"
    ],
    "authenticity_concerns": [
        "photos 1-6: The synthetic PU construction and modern backpack design are inconsistent with the vintage Coach categories being sought.",
        "photos 1-6: No Coach identifiers are visible, while the decorative elephant motif could create a misleading designer-style impression without supporting Coach evidence."
    ],
    "possible_model_reasoning": [
        "The silhouette is a modern convertible backpack\/shoulder bag, not a close match to a cataloged vintage Coach model.",
        "No serial or creed is visible, so there is no Coach era or model basis for identification.",
        "Condition: Promotional photos suggest new or near-new condition, but actual used condition, odor, and interior condition cannot be established from these images.",
        "No Coach identifiers visible in any photo - no creed, wordmark, carriage, or hangtag",
        "Material (PU leather per title and coated appearance) and elephant embossing, plated hardware, and fabric backpack straps are inconsistent with any vintage Coach classic",
        "Silhouette is modern multi-function backpack purse, not a Coach Daypack 9791 or other catalog style; Condition appears New\/unused catalog-type product photos"
    ],
    "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: Shiny gold-tone plated hardware, including rings, clips, rivets, buckles, and zipper pulls; no visible Coach engraving. No turnlock is visible.",
        "leather_description": "photos 1-6: Dark brown, smooth\/textured synthetic-looking material; seller identifies it as PU leather.",
        "lining_description": "not_visible",
        "strap_construction": "photos 1-6: Two broad adjustable backpack straps and a detachable-looking long shoulder strap, with textile-like webbing and gold-tone attachment hardware.",
        "stitching_description": "photos 1-6: Visible machine stitching appears generally even around the flap, body panels, and straps; interior stitching is not visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0089,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.78,
                "coach_probability": 0.01,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.01,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: Listing title explicitly describes PU leather, which is inconsistent with vintage Coach glove-tanned leather.",
                    "photo 1: The item is a backpack-style bag rather than a recognizable vintage Coach handbag silhouette.",
                    "photo 1: Large decorative elephant appliqu\u00e9 and ornate printed motif are not Coach identifiers; no Coach horse-and-carriage or paired-C pattern is visible.",
                    "photos 1-6: No visible Coach wordmark, creed patch, serial\/style number, or recognizable Coach hangtag.",
                    "photos 1-6: The bag uses broad textile-like shoulder straps, shiny plated gold-tone hardware, and a highly synthetic-looking textured surface, consistent with a modern fashion backpack.",
                    "photos 1-6: The listing appears to use clean promotional\/product photography rather than documentary photos of a secondhand vintage item."
                ],
                "missing_information": [
                    "photo 1-6: Interior view, including any brand label, creed patch, fabric tag, or serial\/style number, is not provided.",
                    "photo 1-6: No underside, bottom, or close-up of zipper branding is provided.",
                    "photo 1-6: Seller-stated dimensions, materials, and country of manufacture are not provided beyond the PU-leather title."
                ],
                "authenticity_concerns": [
                    "photos 1-6: The synthetic PU construction and modern backpack design are inconsistent with the vintage Coach categories being sought.",
                    "photos 1-6: No Coach identifiers are visible, while the decorative elephant motif could create a misleading designer-style impression without supporting Coach evidence."
                ],
                "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: Shiny gold-tone plated hardware, including rings, clips, rivets, buckles, and zipper pulls; no visible Coach engraving. No turnlock is visible.",
                    "leather_description": "photos 1-6: Dark brown, smooth\/textured synthetic-looking material; seller identifies it as PU leather.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1-6: Two broad adjustable backpack straps and a detachable-looking long shoulder strap, with textile-like webbing and gold-tone attachment hardware.",
                    "stitching_description": "photos 1-6: Visible machine stitching appears generally even around the flap, body panels, and straps; interior stitching is not visible."
                },
                "possible_model_reasoning": [
                    "The silhouette is a modern convertible backpack\/shoulder bag, not a close match to a cataloged vintage Coach model.",
                    "No serial or creed is visible, so there is no Coach era or model basis for identification.",
                    "Condition: Promotional photos suggest new or near-new condition, but actual used condition, odor, and interior condition cannot be established from these images."
                ],
                "confidence": 0.93,
                "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": 0.01,
                "coach_probability": 0.01,
                "confidence": 0.95,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.3,
                "missing_information": [
                    "photo 1-4: no interior view shown so lining and creed cannot be checked",
                    "photo 1-4: no creed patch close-up shown",
                    "photo 1-4: no Coach wordmark, hangtag, or Made-in line visible"
                ],
                "negative_evidence": [
                    "photo 1: seller title states PU Leather - faux material excludes vintage Coach glove-tanned leather",
                    "photo 1, photo 2: large embossed elephant medallion on flap - motif never used by Coach",
                    "photo 3, photo 4: bright gold-tone plated zippers, clasps, studs and buckles - not solid brass vintage hardware",
                    "photo 3: backpack straps in brown woven fabric with faux-leather trim - not Coach construction",
                    "photo 1-4: backpack \/ multi-function silhouette with top handle and convertible straps - no catalog Coach classic match",
                    "photo 1-4: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone plated hardware: rectangular front clasp, side lobster clips, zipper pulls, backpack slider buckles and decorative studs on strap tab; shiny plated appearance, not solid brass",
                    "leather_description": "dark brown coated faux (PU) leather with wrinkled sheen and embossed circular elephant and floral relief on flap; not glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even machine stitching around flap edge, visible and matched to brown material",
                    "strap_construction": "top grab handle plus dual fabric backpack straps with faux-leather yokes and metal sliders (photo 3) and detachable wide fabric shoulder strap with faux-leather studded tab (photo 1,2,4)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifiers visible in any photo - no creed, wordmark, carriage, or hangtag",
                    "Material (PU leather per title and coated appearance) and elephant embossing, plated hardware, and fabric backpack straps are inconsistent with any vintage Coach classic",
                    "Silhouette is modern multi-function backpack purse, not a Coach Daypack 9791 or other catalog style; Condition appears New\/unused catalog-type product photos"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.01
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 30095,
            "output_tokens": 809,
            "total_tokens": 30904,
            "estimated_cost_usd": 0.01398
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 32201,
            "output_tokens": 1447,
            "total_tokens": 33648,
            "estimated_cost_usd": 0.007598
        }
    ]
}