Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.015,
    "vintage_probability": 0.19,
    "authenticity_confidence": 0.015,
    "image_quality_score": 0.83,
    "seller_misidentification_probability": 0.02,
    "confidence": 0.94,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: Bag is constructed from rows of glossy coiled cord or beads in brown, tan, and cream, rather than Coach's characteristic leather or signature canvas.",
        "photo 1: No Coach wordmark, horse-and-carriage, creed patch, or recognizable Coach hardware is visible.",
        "photos 2 and 7: Closure and strap attachments appear textile-based with small generic metal clips; no Coach turnlock is visible.",
        "photo 4: The interior and top opening show textile construction and no visible Coach identifier.",
        "photo 1: entire bag body and strap made of coiled plastic telephone cords in brown\/tan, not leather",
        "photo 1: no glove-tanned leather, no solid brass hardware, no turnlock, no hangtag, no creed patch",
        "photo 4: bottom view shows fabric backing with plastic coils stitched on, not Coach unlined suede construction",
        "photo 5: strap attachment is knotted cord with small wire hook, not Coach brass dogleash\/lobster clips or buckle-adjustable leather strap",
        "no COACH wordmark or horse-and-carriage visible in any photo"
    ],
    "missing_information": [
        "photo 1: Bottom and all corners are not shown clearly.",
        "photos 1-7: No full interior-empty view or close-up of any interior label is provided.",
        "photos 1-7: No dimensions or scale reference are provided.",
        "photos 1-7: Construction materials and closure mechanism should be confirmed by the seller.",
        "interior views not shown but irrelevant to Coach determination given exterior material",
        "no creed patch visible - none expected on this construction",
        "no maker mark visible"
    ],
    "authenticity_concerns": [
        "photos 1-7: The cord\/beaded artisan construction is inconsistent with the leather handbag construction of vintage Coach classics; it appears to be a non-Coach artisan or novelty bag."
    ],
    "possible_model_reasoning": [
        "photos 1-7: The rectangular shoulder-bag silhouette and novelty cord construction do not match a documented Coach model.",
        "photos 1-7: No creed, serial\/style number, wordmark, or Coach-specific hardware is visible, so Coach model identification is not supportable.",
        "photos 1-7: Condition appears approximately Very Good cosmetically, with no obvious major breaks visible; interior, odor, lining, and hidden attachment wear are unknown.",
        "Telephone-cord artisan\/novelty shoulder bag, not a Coach silhouette; Coach never made plastic telephone-cord bags and never used plastic coil or fabric-backing construction",
        "Materials (plastic, fabric backing, wire hook) fall under Step 1 exclusion: coach_probability <=0.05 unless Coach identifier visible, none visible",
        "Condition: Good to Very Good for novelty type; coils intact with light soiling\/wear visible (photo 5), no further condition grading as non-Coach"
    ],
    "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, 2, 5, and 7: Generic small metal rings\/clips and textile attachment points are visible; no Coach-marked hardware is visible.",
        "leather_description": "photos 1-7: Not leather; the exterior appears made from glossy coiled cord, bead-like tubing, or telephone-cord-style material.",
        "lining_description": "tan woven fabric backing visible between coils (photo 3, photo 4)",
        "strap_construction": "photos 1, 2, 5, and 7: Long shoulder strap made from the same multicolored coiled material, with textile ends and generic metal attachment hardware.",
        "stitching_description": "photos 1-7: Stitching is not clearly visible; rows appear secured to a textile backing."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0027,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.08,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.91,
                "seller_misidentification_probability": 0.02,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: Bag is constructed from rows of glossy coiled cord or beads in brown, tan, and cream, rather than Coach's characteristic leather or signature canvas.",
                    "photo 1: No Coach wordmark, horse-and-carriage, creed patch, or recognizable Coach hardware is visible.",
                    "photos 2 and 7: Closure and strap attachments appear textile-based with small generic metal clips; no Coach turnlock is visible.",
                    "photo 4: The interior and top opening show textile construction and no visible Coach identifier."
                ],
                "missing_information": [
                    "photo 1: Bottom and all corners are not shown clearly.",
                    "photos 1-7: No full interior-empty view or close-up of any interior label is provided.",
                    "photos 1-7: No dimensions or scale reference are provided.",
                    "photos 1-7: Construction materials and closure mechanism should be confirmed by the seller."
                ],
                "authenticity_concerns": [
                    "photos 1-7: The cord\/beaded artisan construction is inconsistent with the leather handbag construction of vintage Coach classics; it appears to be a non-Coach artisan or novelty bag."
                ],
                "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, 2, 5, and 7: Generic small metal rings\/clips and textile attachment points are visible; no Coach-marked hardware is visible.",
                    "leather_description": "photos 1-7: Not leather; the exterior appears made from glossy coiled cord, bead-like tubing, or telephone-cord-style material.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1, 2, 5, and 7: Long shoulder strap made from the same multicolored coiled material, with textile ends and generic metal attachment hardware.",
                    "stitching_description": "photos 1-7: Stitching is not clearly visible; rows appear secured to a textile backing."
                },
                "possible_model_reasoning": [
                    "photos 1-7: The rectangular shoulder-bag silhouette and novelty cord construction do not match a documented Coach model.",
                    "photos 1-7: No creed, serial\/style number, wordmark, or Coach-specific hardware is visible, so Coach model identification is not supportable.",
                    "photos 1-7: Condition appears approximately Very Good cosmetically, with no obvious major breaks visible; interior, odor, lining, and hidden attachment wear are unknown."
                ],
                "confidence": 0.93,
                "recommended_max_bid": 15,
                "estimated_resale_low": 10,
                "estimated_resale_high": 45
            }
        },
        {
            "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": 0.75,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "interior views not shown but irrelevant to Coach determination given exterior material",
                    "no creed patch visible - none expected on this construction",
                    "no maker mark visible"
                ],
                "negative_evidence": [
                    "photo 1: entire bag body and strap made of coiled plastic telephone cords in brown\/tan, not leather",
                    "photo 1: no glove-tanned leather, no solid brass hardware, no turnlock, no hangtag, no creed patch",
                    "photo 4: bottom view shows fabric backing with plastic coils stitched on, not Coach unlined suede construction",
                    "photo 5: strap attachment is knotted cord with small wire hook, not Coach brass dogleash\/lobster clips or buckle-adjustable leather strap",
                    "no COACH wordmark or horse-and-carriage visible in any photo"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "no Coach-type hardware visible; only small dark wire hook at strap end (photo 5)",
                    "leather_description": "no leather visible; exterior is glossy plastic telephone-cord coils in dark brown, rust brown and cream (photo 1-3)",
                    "lining_description": "tan woven fabric backing visible between coils (photo 3, photo 4)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible as leather stitching; coils appear stitched\/glued to fabric base",
                    "strap_construction": "shoulder strap made of three braided telephone cords in matching colors, cord-tied to body (photo 1, photo 2, photo 5)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Telephone-cord artisan\/novelty shoulder bag, not a Coach silhouette; Coach never made plastic telephone-cord bags and never used plastic coil or fabric-backing construction",
                    "Materials (plastic, fabric backing, wire hook) fall under Step 1 exclusion: coach_probability <=0.05 unless Coach identifier visible, none visible",
                    "Condition: Good to Very Good for novelty type; coils intact with light soiling\/wear visible (photo 5), no further condition grading as non-Coach"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 25204,
            "output_tokens": 781,
            "total_tokens": 25985,
            "estimated_cost_usd": 0.011956
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 26188,
            "output_tokens": 1178,
            "total_tokens": 27366,
            "estimated_cost_usd": 0.00618
        }
    ]
}