Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.78,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.88,
    "recommended_max_bid": 9,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: The item is clearly a medium-sized crossbody handbag with a flap-style silhouette.",
        "photo 1: Gold-tone chain hardware and a quilted exterior are visible, but these are generic design features rather than Coach identifiers."
    ],
    "negative_evidence": [
        "photo 1: No legible COACH wordmark, horse-and-carriage, hangtag, or Coach-specific hardware is visible.",
        "photo 1: The chevron-quilted body and chain strap do not resemble a classic vintage Coach glove-tanned leather model.",
        "photo 2: The side construction appears modern and structured, with plated gold-tone chain fittings rather than the solid brass construction typical of many vintage Coach classics.",
        "photo 3: The interior has an all-over printed synthetic-looking lining, inconsistent with an unlined vintage glove-tanned Coach classic.",
        "listing description: Seller states the bag is made from polyurethane, which is not leather and strongly weighs against vintage Coach manufacture.",
        "photo 4: No creed patch, fabric Coach tag, style number, or country-of-origin marking is visible.",
        "photo 1-2: black quilted chevron pebbled-embossed polyurethane, seller states polyurethane",
        "photo 1: bright gold-tone chain strap with faux-leather shoulder pad and large grommets",
        "photo 3-4: brown synthetic lining with multicolor equestrian \/ chain \/ tassel print, polyester zipper",
        "photo 3-4: fully lined interior with zip pocket, no suede-back glove-tanned leather visible",
        "photo 1-4: no COACH wordmark, no horse-and-carriage, no leather creed patch, no leather hangtag visible"
    ],
    "missing_information": [
        "photo 1-4: No straight-on interior back-wall or pocket view showing whether any brand label or creed patch exists.",
        "photo 1-4: No close-up of the closure hardware, zipper pulls, or chain fittings for maker markings.",
        "photo 1-4: No bottom, corner, or full strap-detail photos.",
        "creed close-up not provided, but interior views show no creed patch",
        "turn-lock front detail not shown in photos despite description claim",
        "hardware stamps \/ zipper brand not shown"
    ],
    "authenticity_concerns": [
        "photo 3-4 and listing description: Polyurethane construction and printed synthetic lining are inconsistent with the classic vintage Coach leather construction; this appears to be a generic or lookalike modern handbag rather than an unidentified vintage Coach.",
        "photo 1: The decorative chevron quilting and chain strap are brand-evoking but provide no Coach-specific evidence.",
        "photo 1-4: polyurethane body and printed polyester lining inconsistent with vintage Coach glove-tanned unlined construction",
        "photo 1: gold-tone chain strap with shoulder pad and grommet attachment not used on vintage Coach classics",
        "photo 3-4: equestrian-print synthetic lining, no leather creed patch visible in interior shots"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the bag lacks a visible Coach identifier and uses polyurethane, modern chevron quilting, chain hardware, and printed lining.",
        "Condition: Very Good based on the clean exterior and intact visible hardware; hidden wear, odor, lining damage, and bottom-corner condition are not fully shown.",
        "No Coach model fits: quilted PU, chain-and-pad strap, printed poly lining and lack of creed\/wordmark\/solid-brass hardware are inconsistent with all vintage Coach catalog styles",
        "Silhouette is modern fast-fashion chain crossbody, not a Coach classic (City, Willis, Court, Dinky, etc.)",
        "Condition: Good to Very Good; light edge wear visible photo 2, otherwise intact; lining clean photo 3-4"
    ],
    "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": "photo 1-2: Gold-tone chain strap, circular chain eyelets, rings, and a padded shoulder section are visible; no maker engraving is legible.",
        "leather_description": "photo 1-2: Exterior appears textured synthetic or polyurethane rather than visibly natural glove-tanned leather; seller explicitly states polyurethane.",
        "lining_description": "photo 3-4: Multicolor printed fabric or synthetic lining with patterned motifs and interior zip compartments is visible.",
        "strap_construction": "photo 1-2: Long gold-tone chain strap with a black padded shoulder section and metal attachment rings; it can apparently be doubled or shortened.",
        "stitching_description": "photo 1-4: Quilted exterior has generally even visible stitching; stress-point and interior seam construction are not fully assessable."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0013,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.02,
                "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: The item is clearly a medium-sized crossbody handbag with a flap-style silhouette.",
                    "photo 1: Gold-tone chain hardware and a quilted exterior are visible, but these are generic design features rather than Coach identifiers."
                ],
                "negative_evidence": [
                    "photo 1: No legible COACH wordmark, horse-and-carriage, hangtag, or Coach-specific hardware is visible.",
                    "photo 1: The chevron-quilted body and chain strap do not resemble a classic vintage Coach glove-tanned leather model.",
                    "photo 2: The side construction appears modern and structured, with plated gold-tone chain fittings rather than the solid brass construction typical of many vintage Coach classics.",
                    "photo 3: The interior has an all-over printed synthetic-looking lining, inconsistent with an unlined vintage glove-tanned Coach classic.",
                    "listing description: Seller states the bag is made from polyurethane, which is not leather and strongly weighs against vintage Coach manufacture.",
                    "photo 4: No creed patch, fabric Coach tag, style number, or country-of-origin marking is visible."
                ],
                "missing_information": [
                    "photo 1-4: No straight-on interior back-wall or pocket view showing whether any brand label or creed patch exists.",
                    "photo 1-4: No close-up of the closure hardware, zipper pulls, or chain fittings for maker markings.",
                    "photo 1-4: No bottom, corner, or full strap-detail photos."
                ],
                "authenticity_concerns": [
                    "photo 3-4 and listing description: Polyurethane construction and printed synthetic lining are inconsistent with the classic vintage Coach leather construction; this appears to be a generic or lookalike modern handbag rather than an unidentified vintage Coach.",
                    "photo 1: The decorative chevron quilting and chain strap are brand-evoking but provide no Coach-specific 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": "photo 1-2: Gold-tone chain strap, circular chain eyelets, rings, and a padded shoulder section are visible; no maker engraving is legible.",
                    "leather_description": "photo 1-2: Exterior appears textured synthetic or polyurethane rather than visibly natural glove-tanned leather; seller explicitly states polyurethane.",
                    "lining_description": "photo 3-4: Multicolor printed fabric or synthetic lining with patterned motifs and interior zip compartments is visible.",
                    "strap_construction": "photo 1-2: Long gold-tone chain strap with a black padded shoulder section and metal attachment rings; it can apparently be doubled or shortened.",
                    "stitching_description": "photo 1-4: Quilted exterior has generally even visible stitching; stress-point and interior seam construction are not fully assessable."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the bag lacks a visible Coach identifier and uses polyurethane, modern chevron quilting, chain hardware, and printed lining.",
                    "Condition: Very Good based on the clean exterior and intact visible hardware; hidden wear, odor, lining damage, and bottom-corner condition are not fully shown."
                ],
                "confidence": 0.88,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-4: polyurethane body and printed polyester lining inconsistent with vintage Coach glove-tanned unlined construction",
                    "photo 1: gold-tone chain strap with shoulder pad and grommet attachment not used on vintage Coach classics",
                    "photo 3-4: equestrian-print synthetic lining, no leather creed patch visible in interior shots"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 8,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "creed close-up not provided, but interior views show no creed patch",
                    "turn-lock front detail not shown in photos despite description claim",
                    "hardware stamps \/ zipper brand not shown"
                ],
                "negative_evidence": [
                    "photo 1-2: black quilted chevron pebbled-embossed polyurethane, seller states polyurethane",
                    "photo 1: bright gold-tone chain strap with faux-leather shoulder pad and large grommets",
                    "photo 3-4: brown synthetic lining with multicolor equestrian \/ chain \/ tassel print, polyester zipper",
                    "photo 3-4: fully lined interior with zip pocket, no suede-back glove-tanned leather visible",
                    "photo 1-4: no COACH wordmark, no horse-and-carriage, no leather creed patch, 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 chain strap with large grommets and faux-leather shoulder pad; turn-lock claimed in text but not visible in photos",
                    "leather_description": "black pebbled-embossed polyurethane with chevron quilt stitching, not glove-tanned leather",
                    "lining_description": "brown polyester with multicolor equestrian-motif print (chains, straps, tassels)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "machine chevron quilting on flap\/body, even but decorative",
                    "strap_construction": "gold-tone chain with black faux-leather comfort pad, can be doubled",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: quilted PU, chain-and-pad strap, printed poly lining and lack of creed\/wordmark\/solid-brass hardware are inconsistent with all vintage Coach catalog styles",
                    "Silhouette is modern fast-fashion chain crossbody, not a Coach classic (City, Willis, Court, Dinky, etc.)",
                    "Condition: Good to Very Good; light edge wear visible photo 2, otherwise intact; lining clean photo 3-4"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16928,
            "output_tokens": 955,
            "total_tokens": 17883,
            "estimated_cost_usd": 0.009063
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17248,
            "output_tokens": 1310,
            "total_tokens": 18558,
            "estimated_cost_usd": 0.004498
        }
    ]
}