Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.035,
    "vintage_probability": 0.165,
    "authenticity_confidence": 0.04,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.04,
    "confidence": 0.735,
    "recommended_max_bid": 10,
    "estimated_resale_low": 10,
    "estimated_resale_high": 32.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a handbag with a structured body, flap, and shoulder strap.",
        "photo 2: Gold-tone chain-and-leather strap construction is visible.",
        "photo 1-2: leather flap shoulder handbag of a type that could be assessed for Coach identifiers"
    ],
    "negative_evidence": [
        "photo 1: Glossy embossed crocodile-pattern surface is unlike the smooth or naturally grained glove-tanned leather typical of vintage Coach classics.",
        "photo 1: The bag uses a small snap closure rather than a recognizable Coach turnlock or other documented Coach closure.",
        "photo 2: Chain strap and narrow leather shoulder section are generic and do not show a Coach-specific construction cue.",
        "photo 6: Interior appears black fabric or synthetic lining; no Coach creed, wordmark, or horse-and-carriage is visible.",
        "photo 3: No Coach hangtag or other visible brand identifier is present.",
        "photo 1-6: no creed patch, no COACH wordmark, no hangtag visible",
        "photo 6: magnetic snap closure, not Coach vintage turnlock geometry; turnlock absent",
        "photo 1-5: gold-tone large-link chain combined with flat leather shoulder pad - not vintage Coach solid-brass dogleash \/ buckle strap construction",
        "photo 2-3: glossy croc-embossed leather with high shine - not matte glove-tanned cowhide with natural scars\/veins",
        "photo 6: black smooth lining under flap - not unlined suede-back glove-tanned interior of classics"
    ],
    "missing_information": [
        "photo 6: Interior is only partially opened; request a fully emptied interior, all pockets, and any sewn-in label or tag.",
        "Request a clear close-up of the closure hardware, strap attachments, and any markings on the reverse of the hardware.",
        "Request bottom, side, corner, and seam photos to assess material and construction more fully.",
        "photo of interior main compartment and any creed patch or fabric tags - none shown",
        "photo of hardware engravings \/ zipper brand \/ Made-in stamp",
        "photo of bottom and corners and back exterior",
        "clear close-up of magnetic snap and chain attachments"
    ],
    "authenticity_concerns": [
        "The glossy embossed croco-look material, generic snap closure, chain strap, and absence of Coach identifiers are more consistent with an unbranded or lookalike bag than a Coach handbag.",
        "No creed or serial\/style number is visible in the provided photos, and the visible construction does not closely match a cataloged vintage Coach model."
    ],
    "possible_model_reasoning": [
        "The rectangular flap silhouette is generic and does not provide a reliable Coach model match.",
        "The chain-and-leather strap and embossed glossy finish are not characteristic enough to support a vintage Coach identification.",
        "Condition appears approximately Very Good from the exterior photos: no major tears or broken hardware are visible, though the interior, underside, and odor are unknown.",
        "No Coach catalog match: silhouette is small croc-embossed flap with chain-and-leather strap and magnetic snap, inconsistent with City Bag (9790), Willis (9927), Court (9870), Dinky (9375) which use turnlock and solid-brass \/ leather straps and glove-tanned leather",
        "Era reasoning: glossy embossed leather, chain strap, magnetic snap and black lining point to modern (2000s+) non-Coach manufacture, not NYC\/US glove-tanned era",
        "Condition: appears Excellent to Very Good for exterior gloss and shape in photo 2-3, but interior, bottom corners 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": false,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "Gold-tone chain strap with small clips and snap hardware; no Coach engraving is visible in photos 1-6.",
        "leather_description": "Glossy burgundy\/red crocodile-pattern embossed material; whether genuine leather or synthetic cannot be determined from the photos.",
        "lining_description": "Black lining is visible in photo 6, but material and full condition are not clear.",
        "strap_construction": "Combination of narrow burgundy leather-like shoulder sections and gold-tone chain links, attached at the upper sides with clips.",
        "stitching_description": "Perimeter stitching is visible on the flap and body, but resolution does not support a detailed construction assessment."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.003,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a handbag with a structured body, flap, and shoulder strap.",
                    "photo 2: Gold-tone chain-and-leather strap construction is visible."
                ],
                "negative_evidence": [
                    "photo 1: Glossy embossed crocodile-pattern surface is unlike the smooth or naturally grained glove-tanned leather typical of vintage Coach classics.",
                    "photo 1: The bag uses a small snap closure rather than a recognizable Coach turnlock or other documented Coach closure.",
                    "photo 2: Chain strap and narrow leather shoulder section are generic and do not show a Coach-specific construction cue.",
                    "photo 6: Interior appears black fabric or synthetic lining; no Coach creed, wordmark, or horse-and-carriage is visible.",
                    "photo 3: No Coach hangtag or other visible brand identifier is present."
                ],
                "missing_information": [
                    "photo 6: Interior is only partially opened; request a fully emptied interior, all pockets, and any sewn-in label or tag.",
                    "Request a clear close-up of the closure hardware, strap attachments, and any markings on the reverse of the hardware.",
                    "Request bottom, side, corner, and seam photos to assess material and construction more fully."
                ],
                "authenticity_concerns": [
                    "The glossy embossed croco-look material, generic snap closure, chain strap, and absence of Coach identifiers are more consistent with an unbranded or lookalike bag than a Coach handbag.",
                    "No creed or serial\/style number is visible in the provided photos, and the visible construction does not closely match a cataloged vintage Coach model."
                ],
                "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": "Gold-tone chain strap with small clips and snap hardware; no Coach engraving is visible in photos 1-6.",
                    "leather_description": "Glossy burgundy\/red crocodile-pattern embossed material; whether genuine leather or synthetic cannot be determined from the photos.",
                    "lining_description": "Black lining is visible in photo 6, but material and full condition are not clear.",
                    "strap_construction": "Combination of narrow burgundy leather-like shoulder sections and gold-tone chain links, attached at the upper sides with clips.",
                    "stitching_description": "Perimeter stitching is visible on the flap and body, but resolution does not support a detailed construction assessment."
                },
                "possible_model_reasoning": [
                    "The rectangular flap silhouette is generic and does not provide a reliable Coach model match.",
                    "The chain-and-leather strap and embossed glossy finish are not characteristic enough to support a vintage Coach identification.",
                    "Condition appears approximately Very Good from the exterior photos: no major tears or broken hardware are visible, though the interior, underside, and odor are unknown."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.04,
                "confidence": 0.65,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of interior main compartment and any creed patch or fabric tags - none shown",
                    "photo of hardware engravings \/ zipper brand \/ Made-in stamp",
                    "photo of bottom and corners and back exterior",
                    "clear close-up of magnetic snap and chain attachments"
                ],
                "negative_evidence": [
                    "photo 1-6: no creed patch, no COACH wordmark, no hangtag visible",
                    "photo 6: magnetic snap closure, not Coach vintage turnlock geometry; turnlock absent",
                    "photo 1-5: gold-tone large-link chain combined with flat leather shoulder pad - not vintage Coach solid-brass dogleash \/ buckle strap construction",
                    "photo 2-3: glossy croc-embossed leather with high shine - not matte glove-tanned cowhide with natural scars\/veins",
                    "photo 6: black smooth lining under flap - not unlined suede-back glove-tanned interior of classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone large oval chain-link shoulder strap with flat leather top handle section; round magnetic snap closure gold-tone; no COACH stamping visible",
                    "leather_description": "red \/ burgundy crocodile-embossed leather with glossy finish visible in photo 3",
                    "lining_description": "black smooth material visible on underside of flap in photo 6; main compartment interior not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible - stitching not legible in provided resolution",
                    "strap_construction": "chain-link sides with flat croc-embossed leather top shoulder section, attached with small gold-tone rings",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-2: leather flap shoulder handbag of a type that could be assessed for Coach identifiers"
                ],
                "possible_model_reasoning": [
                    "No Coach catalog match: silhouette is small croc-embossed flap with chain-and-leather strap and magnetic snap, inconsistent with City Bag (9790), Willis (9927), Court (9870), Dinky (9375) which use turnlock and solid-brass \/ leather straps and glove-tanned leather",
                    "Era reasoning: glossy embossed leather, chain strap, magnetic snap and black lining point to modern (2000s+) non-Coach manufacture, not NYC\/US glove-tanned era",
                    "Condition: appears Excellent to Very Good for exterior gloss and shape in photo 2-3, but interior, bottom corners and strap wear not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.04,
                "vintage_probability": 0.15
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17260,
            "output_tokens": 758,
            "total_tokens": 18018,
            "estimated_cost_usd": 0.008723
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17732,
            "output_tokens": 1291,
            "total_tokens": 19023,
            "estimated_cost_usd": 0.004579
        }
    ]
}