Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.03,
    "vintage_probability": 0.055,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.79,
    "seller_misidentification_probability": 0.04,
    "confidence": 0.81,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 11.5,
    "estimated_resale_high": 35,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a structured brown handbag with a shoulder strap and flap closure.",
        "photo 2: Smooth brown exterior and gold-tone hardware are visually compatible with the broad category of leather handbags, but are not Coach-specific identifiers."
    ],
    "negative_evidence": [
        "photo 1: The prominent central clasp is an oversized decorative oval-and-tab mechanism, not the characteristic Coach vintage turnlock geometry.",
        "photo 2: No COACH wordmark, horse-and-carriage mark, hangtag, or other Coach identifier is visible.",
        "photo 3: The rear view shows no visible creed patch, label, or branding.",
        "photo 4: The close-up of the clasp shows generic gold-tone hardware without a Coach marking.",
        "photo 5: The strap attachment uses generic-looking hardware and construction rather than clearly recognizable vintage Coach fittings.",
        "photo 6: The exterior has a very uniform, glossy, smooth finish and polished edge treatment, which is more consistent with a generic later handbag than classic vintage glove-tanned Coach leather.",
        "photo 1-3: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 4: oval twist \/ tuck clasp in bright gold-tone plate is not vintage Coach solid-brass turnlock geometry with wide thin back plate and slim tab",
        "photo 5: modern bright gold-tone zipper pulls, unbranded, not Talon \/ YKK vintage brass",
        "photo 1-3,6: smooth coated leather with uniform sheen, not matte glove-tanned full-grain with natural grain\/patina",
        "photo 1-3,6: small structured flap shoulder silhouette with fixed thin strap and side zips does not match any classic Coach catalog style"
    ],
    "missing_information": [
        "photo 1-6: Interior is not shown; request an empty interior view, including the back wall, pockets, lining, and any sewn-in label.",
        "photo 1-6: No creed patch or serial\/style-number close-up is provided; request straight-on close-ups of all interior labels and stamps.",
        "photo 1-6: Country-of-manufacture information and zipper-pull markings are not visible.",
        "photo 1-6: Bottom, corners, and full strap condition are only partially documented.",
        "photo 1-6: Material is not confirmed; ask whether the bag is genuine leather, coated leather, or synthetic.",
        "photo of interior emptied and creed patch \/ interior back wall and pockets not shown",
        "photo of bottom and corners not shown",
        "close-up of any brand stamps on hardware or interior labels not shown",
        "seller-stated dimensions and materials not provided"
    ],
    "authenticity_concerns": [
        "photo 1 and photo 4: The decorative clasp is inconsistent with the slim, elegant vintage Coach turnlock design and resembles a generic lookalike closure.",
        "photo 2 and photo 5: The very glossy, uniform finish and generic strap attachment do not establish Coach manufacture.",
        "photo 1-6: No Coach identifier is visible, so Coach manufacture cannot be supported from the listing photos."
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because the bag has no visible Coach identifier and its clasp does not match a recognizable classic Coach closure.",
        "Silhouette is a generic small structured flap shoulder bag and could be a later unbranded fashion handbag.",
        "Condition: approximately Very Good based on clean visible exterior and minor apparent surface marks; interior, odor, lining, and full bottom condition are unknown.",
        "No Coach hard identifier visible in any of 6 photos: no creed, no serial, no wordmark, no hangtag, no solid-brass Coach turnlock",
        "Construction reads modern fast-fashion: coated smooth leather, bright plated hardware, modern zip pulls, fixed strap - inconsistent with 1970s-1990s unlined glove-tanned solid-brass Coach classics",
        "Silhouette does not match City Bag, Willis, Court, Station, Dinky or other catalog styles; therefore no Coach model ranked",
        "Condition: Like New \/ Mint appearance exterior - clean corners and uniform color in photos 1-3,6; interior, bottom and strap wear not shown so grade capped"
    ],
    "estimated_era": "modern (2000s+), non-Coach",
    "observed_features": {
        "creed_present": false,
        "serial_or_style_number_present": false,
        "coach_wordmark_present": false,
        "turnlock_present": true,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "Gold-tone decorative clasp with a central oval lower piece and rectangular upper keeper; additional gold-tone strap-side hardware is visible. No branding is legible.",
        "leather_description": "Smooth, dark brown, highly uniform and glossy-looking exterior; genuine leather versus synthetic material cannot be confirmed from photos.",
        "lining_description": "not_visible",
        "strap_construction": "Single long rounded shoulder strap, apparently stitched or fixed at both upper sides; detailed underside and adjustment construction are not visible.",
        "stitching_description": "Visible perimeter stitching is generally regular and contrasting brown\/tan; close construction quality at all seams is not assessable."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0013,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.04,
                "vintage_probability": 0.08,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.05,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a structured brown handbag with a shoulder strap and flap closure.",
                    "photo 2: Smooth brown exterior and gold-tone hardware are visually compatible with the broad category of leather handbags, but are not Coach-specific identifiers."
                ],
                "negative_evidence": [
                    "photo 1: The prominent central clasp is an oversized decorative oval-and-tab mechanism, not the characteristic Coach vintage turnlock geometry.",
                    "photo 2: No COACH wordmark, horse-and-carriage mark, hangtag, or other Coach identifier is visible.",
                    "photo 3: The rear view shows no visible creed patch, label, or branding.",
                    "photo 4: The close-up of the clasp shows generic gold-tone hardware without a Coach marking.",
                    "photo 5: The strap attachment uses generic-looking hardware and construction rather than clearly recognizable vintage Coach fittings.",
                    "photo 6: The exterior has a very uniform, glossy, smooth finish and polished edge treatment, which is more consistent with a generic later handbag than classic vintage glove-tanned Coach leather."
                ],
                "missing_information": [
                    "photo 1-6: Interior is not shown; request an empty interior view, including the back wall, pockets, lining, and any sewn-in label.",
                    "photo 1-6: No creed patch or serial\/style-number close-up is provided; request straight-on close-ups of all interior labels and stamps.",
                    "photo 1-6: Country-of-manufacture information and zipper-pull markings are not visible.",
                    "photo 1-6: Bottom, corners, and full strap condition are only partially documented.",
                    "photo 1-6: Material is not confirmed; ask whether the bag is genuine leather, coated leather, or synthetic."
                ],
                "authenticity_concerns": [
                    "photo 1 and photo 4: The decorative clasp is inconsistent with the slim, elegant vintage Coach turnlock design and resembles a generic lookalike closure.",
                    "photo 2 and photo 5: The very glossy, uniform finish and generic strap attachment do not establish Coach manufacture.",
                    "photo 1-6: No Coach identifier is visible, so Coach manufacture cannot be supported from the listing photos."
                ],
                "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": true,
                    "hangtag_present": false,
                    "hardware_description": "Gold-tone decorative clasp with a central oval lower piece and rectangular upper keeper; additional gold-tone strap-side hardware is visible. No branding is legible.",
                    "leather_description": "Smooth, dark brown, highly uniform and glossy-looking exterior; genuine leather versus synthetic material cannot be confirmed from photos.",
                    "lining_description": "not_visible",
                    "strap_construction": "Single long rounded shoulder strap, apparently stitched or fixed at both upper sides; detailed underside and adjustment construction are not visible.",
                    "stitching_description": "Visible perimeter stitching is generally regular and contrasting brown\/tan; close construction quality at all seams is not assessable."
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because the bag has no visible Coach identifier and its clasp does not match a recognizable classic Coach closure.",
                    "Silhouette is a generic small structured flap shoulder bag and could be a later unbranded fashion handbag.",
                    "Condition: approximately Very Good based on clean visible exterior and minor apparent surface marks; interior, odor, lining, and full bottom condition are unknown."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.8,
                "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": [
                    "photo of interior emptied and creed patch \/ interior back wall and pockets not shown",
                    "photo of bottom and corners not shown",
                    "close-up of any brand stamps on hardware or interior labels not shown",
                    "seller-stated dimensions and materials not provided"
                ],
                "negative_evidence": [
                    "photo 1-3: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 4: oval twist \/ tuck clasp in bright gold-tone plate is not vintage Coach solid-brass turnlock geometry with wide thin back plate and slim tab",
                    "photo 5: modern bright gold-tone zipper pulls, unbranded, not Talon \/ YKK vintage brass",
                    "photo 1-3,6: smooth coated leather with uniform sheen, not matte glove-tanned full-grain with natural grain\/patina",
                    "photo 1-3,6: small structured flap shoulder silhouette with fixed thin strap and side zips does not match any classic Coach catalog style"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone plated oval twist\/tuck flap clasp and rectangular-bar zipper pulls; shiny plated appearance, not heavy unplated solid brass; no COACH engraving visible",
                    "leather_description": "smooth dark brown leather-look material with uniform semi-gloss finish; no visible full-grain texture, scars, veins or glove-tanned patina",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even light-tan contrast stitching around flap edge and strap, machine-sewn; no mismatched thread visible",
                    "strap_construction": "single fixed thin rolled shoulder strap in matching brown, sewn into top sides; no buckle adjustment, dogleash clips, or dowel handle",
                    "turnlock_present": true
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach hard identifier visible in any of 6 photos: no creed, no serial, no wordmark, no hangtag, no solid-brass Coach turnlock",
                    "Construction reads modern fast-fashion: coated smooth leather, bright plated hardware, modern zip pulls, fixed strap - inconsistent with 1970s-1990s unlined glove-tanned solid-brass Coach classics",
                    "Silhouette does not match City Bag, Willis, Court, Station, Dinky or other catalog styles; therefore no Coach model ranked",
                    "Condition: Like New \/ Mint appearance exterior - clean corners and uniform color in photos 1-3,6; interior, bottom and strap wear not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28582,
            "output_tokens": 873,
            "total_tokens": 29455,
            "estimated_cost_usd": 0.013528
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 29758,
            "output_tokens": 1273,
            "total_tokens": 31031,
            "estimated_cost_usd": 0.00697
        }
    ]
}