Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.615,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.785,
    "recommended_max_bid": 10,
    "estimated_resale_low": 10,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: the bag has a generic rectangular flap silhouette and an oversized abstract gold clasp, with no visible Coach wordmark, carriage, creed, or hangtag.",
        "photo 1: the smooth, highly uniform black exterior appears more consistent with synthetic or heavily coated material than vintage glove-tanned leather.",
        "photo 2: the large gold ring attachments and clasp are unlike the elegant solid-brass turnlock hardware typical of vintage Coach classics.",
        "photo 3: the construction and hardware appear modern and fashion-oriented rather than consistent with a documented vintage Coach model.",
        "listing text: seller identifies the item as unbranded; this is weak context only and does not establish manufacture.",
        "photo 1-3: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 1-3: closure is a smooth gold-tone blob\/push clasp, not vintage Coach turnlock geometry with thin oval back-plate and slim tab",
        "photo 1-3: bright plated gold-tone O-ring handle hardware, not solid unplated vintage brass",
        "photo 1-3: smooth uniform black leather with high sheen and painted edges, not matte glove-tanned full-grain with natural grain",
        "photo 1-3: short tubular top-handle on O-rings with no buckle adjustment or dogleash clips does not match any classic catalog style"
    ],
    "missing_information": [
        "photo 1-3: interior, lining, and any sewn-in brand or care labels are not shown.",
        "photo 1-3: bottom, corners, closure mechanism, and any interior creed or serial patch are not shown clearly.",
        "photo 1-3: material composition is not stated or verifiable from the photos.",
        "photo 1-3: interior views including creed patch and lining not shown - request straight-on creed in raking light",
        "photo 1-3: bottom, back, side and close-up hardware views not shown",
        "photo 1-3: hangtag, wordmark, zipper-pull stamps or Made-in line not shown",
        "photo 1-3: strap buckle holes, clips and scale\/dimensions not shown"
    ],
    "authenticity_concerns": [
        "The abstract oversized clasp and ring hardware are lookalike cues rather than recognizable Coach design elements.",
        "No Coach identifier is visible in the supplied photos; the item should be treated as a generic modern handbag rather than a vintage Coach bag."
    ],
    "possible_model_reasoning": [
        "No Coach model is a strong match: the clasp is not a conventional vintage Coach turnlock and no Coach identifiers are visible.",
        "The polished uniform surface, modern ring hardware, and fashion-style rectangular silhouette suggest a contemporary generic bag rather than a pre-2000 Coach classic.",
        "Condition: Like New or Excellent based on clean visible exterior and hardware; interior, bottom, odor, and unseen wear cannot be graded.",
        "no Coach model fits: rectangular flap top-handle silhouette with blob clasp and O-ring handle does not match Willis (9927), Court (9870), Station (5130), City Bag (9790) or other classics in closure, strap and hardware",
        "era reasoning: construction, plated hardware and lifestyle-only presentation indicate modern fast-fashion production, not vintage glove-tanned era",
        "Condition: appears Like New to Excellent exterior in photo 1-3 with no visible wear, but interior, bottom and corners not shown so grade capped and lining unknown"
    ],
    "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": "Visible gold-tone circular rings, strap clips, and a large rounded abstract flap clasp; no Coach engraving is visible.",
        "leather_description": "Smooth, uniform black material with a coated or synthetic appearance; exact material is not verifiable.",
        "lining_description": "not_visible",
        "strap_construction": "Short rounded top handle attached through gold-tone rings; a detachable long strap is not visible.",
        "stitching_description": "Visible machine-like, evenly spaced black edge stitching around the flap and body; no obvious loose stitching is visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0042,
    "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": 0.03,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: the bag has a generic rectangular flap silhouette and an oversized abstract gold clasp, with no visible Coach wordmark, carriage, creed, or hangtag.",
                    "photo 1: the smooth, highly uniform black exterior appears more consistent with synthetic or heavily coated material than vintage glove-tanned leather.",
                    "photo 2: the large gold ring attachments and clasp are unlike the elegant solid-brass turnlock hardware typical of vintage Coach classics.",
                    "photo 3: the construction and hardware appear modern and fashion-oriented rather than consistent with a documented vintage Coach model.",
                    "listing text: seller identifies the item as unbranded; this is weak context only and does not establish manufacture."
                ],
                "missing_information": [
                    "photo 1-3: interior, lining, and any sewn-in brand or care labels are not shown.",
                    "photo 1-3: bottom, corners, closure mechanism, and any interior creed or serial patch are not shown clearly.",
                    "photo 1-3: material composition is not stated or verifiable from the photos."
                ],
                "authenticity_concerns": [
                    "The abstract oversized clasp and ring hardware are lookalike cues rather than recognizable Coach design elements.",
                    "No Coach identifier is visible in the supplied photos; the item should be treated as a generic modern handbag rather than a vintage Coach 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": "Visible gold-tone circular rings, strap clips, and a large rounded abstract flap clasp; no Coach engraving is visible.",
                    "leather_description": "Smooth, uniform black material with a coated or synthetic appearance; exact material is not verifiable.",
                    "lining_description": "not_visible",
                    "strap_construction": "Short rounded top handle attached through gold-tone rings; a detachable long strap is not visible.",
                    "stitching_description": "Visible machine-like, evenly spaced black edge stitching around the flap and body; no obvious loose stitching is visible."
                },
                "possible_model_reasoning": [
                    "No Coach model is a strong match: the clasp is not a conventional vintage Coach turnlock and no Coach identifiers are visible.",
                    "The polished uniform surface, modern ring hardware, and fashion-style rectangular silhouette suggest a contemporary generic bag rather than a pre-2000 Coach classic.",
                    "Condition: Like New or Excellent based on clean visible exterior and hardware; interior, bottom, odor, and unseen wear cannot be graded."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.75,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.45,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1-3: interior views including creed patch and lining not shown - request straight-on creed in raking light",
                    "photo 1-3: bottom, back, side and close-up hardware views not shown",
                    "photo 1-3: hangtag, wordmark, zipper-pull stamps or Made-in line not shown",
                    "photo 1-3: strap buckle holes, clips and scale\/dimensions not shown"
                ],
                "negative_evidence": [
                    "photo 1-3: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 1-3: closure is a smooth gold-tone blob\/push clasp, not vintage Coach turnlock geometry with thin oval back-plate and slim tab",
                    "photo 1-3: bright plated gold-tone O-ring handle hardware, not solid unplated vintage brass",
                    "photo 1-3: smooth uniform black leather with high sheen and painted edges, not matte glove-tanned full-grain with natural grain",
                    "photo 1-3: short tubular top-handle on O-rings with no buckle adjustment or dogleash clips does not match any classic catalog style"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone hardware: irregular blob front clasp and large O-rings attaching tubular top-handle; shiny plated appearance, no COACH engraving visible",
                    "leather_description": "smooth black leather with uniform surface and slight sheen, finished edges visible on flap; no natural scars, veins or glove-tanned patina visible",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight edge stitching tone-matched to leather visible on flap perimeter in photo 1-3; no further detail visible",
                    "strap_construction": "short fixed tubular top-handle looped through O-rings with wrapped leather ends; no adjustable crossbody strap, buckle, or dogleash clips visible",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "no Coach model fits: rectangular flap top-handle silhouette with blob clasp and O-ring handle does not match Willis (9927), Court (9870), Station (5130), City Bag (9790) or other classics in closure, strap and hardware",
                    "era reasoning: construction, plated hardware and lifestyle-only presentation indicate modern fast-fashion production, not vintage glove-tanned era",
                    "Condition: appears Like New to Excellent exterior in photo 1-3 with no visible wear, but interior, bottom and corners not shown so grade capped and lining unknown"
                ],
                "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": 20770,
            "output_tokens": 732,
            "total_tokens": 21502,
            "estimated_cost_usd": 0.010065
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 21409,
            "output_tokens": 1298,
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            "estimated_cost_usd": 0.00532
        }
    ]
}