Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.105,
    "vintage_probability": 0.5,
    "authenticity_confidence": 0.075,
    "image_quality_score": 0.735,
    "seller_misidentification_probability": 0.105,
    "confidence": 0.75,
    "recommended_max_bid": 12,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 37.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: structured black leather handbag with substantial construction and four metal feet",
        "photo 2: stitching appears generally even and the leather has a smooth, substantial appearance",
        "photo 6: protective feet are visible on the base",
        "photo 1: black leather handbag of a size and age where misidentified vintage could hide, so triage warranted"
    ],
    "negative_evidence": [
        "photo 1: no legible COACH wordmark, horse-and-carriage, creed patch, or hangtag is visible",
        "photo 1: central gold-tone clasp and decorative paneling do not clearly match a documented classic Coach turnlock silhouette",
        "photos 1-5: the bag has an unusual structured satchel design that cannot be confidently matched to the listed Coach catalog styles",
        "photo 6: hardware appears bright and mixed-looking, but the photos do not provide enough detail to establish Coach-era hardware consistency",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 1, photo 5: top frame clasp closure, no turnlock present",
        "photo 1-3: shiny smooth coated leather with sheen, not matte glove-tanned full-grain with natural grain",
        "photo 1-3: decorative diagonal stitched panels on lower front and oval applique on front tab, not a Coach catalog silhouette",
        "photo 6: four silver-tone base feet plus gold-tone top clasp - mixed hardware tones",
        "photo 1, photo 5: double fixed stitched-in top handles, not Coach buckle-adjustable or dogleash-detachable strap"
    ],
    "missing_information": [
        "photo request: interior emptied and photographed, especially the back wall, slip pocket, and any creed patch",
        "photo request: close-up of any interior label, fabric tag, zipper pull, and clasp engraving",
        "photo request: close-up of the central clasp and all hardware",
        "seller-stated dimensions, material composition, and country of manufacture",
        "interior views emptied including back wall and pockets for creed patch check",
        "close-up of top clasp\/frame hardware front and back",
        "close-up of zipper pulls or hardware brand stamps and Made-in line",
        "bottom corners and edge wear close-up",
        "strap\/handle anchors and full-length handle detail",
        "seller-stated dimensions and weight for scale"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible in the six provided photos, so a Coach attribution is unsupported.",
        "The clasp and overall construction may represent a non-Coach lookalike or another vintage leather brand; silhouette alone cannot authenticate Coach.",
        "photo 1, photo 5: frame\/kisslock-type top clasp closure inconsistent with vintage Coach turnlock classics",
        "photo 6: mixed hardware tones (gold-tone top clasp with silver-tone base feet) inconsistent with vintage Coach solid-brass consistency"
    ],
    "possible_model_reasoning": [
        "No Coach model is listed because no visible Coach identifier or sufficiently distinctive catalog match is present.",
        "The structured satchel form with fixed shoulder handles and a central clasp could be a vintage or retro-styled leather handbag from another maker, but the interior and brand marks are not shown.",
        "Condition: approximately Very Good from the visible exterior; light surface scratches and ordinary handling are visible, while the interior and strap attachment areas are unknown.",
        "No Coach model fits: frame-clasp top, fixed double handles, front tab with oval applique and diagonal corner seaming match 1980s-1990s department-store frame purse, not City Bag (9790), Court (9870), Station (5130), Willis (9927) or other turnlock classics",
        "Era reasoning: construction and sheen suggest 1980s-1990s non-Coach vintage-style bag, but with no identifiers era for Coach purposes is non-Coach modern",
        "Condition: Good to Very Good; exterior shows light surface scuffs and softening but no major corner wear-through visible (photo 3, photo 6); interior, strap fold and odor unknown 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": "photo 1: small gold-tone rectangular clasp centered near the top; photo 6: four small metal feet visible on the base. Hardware markings are not legible.",
        "leather_description": "photos 1-3: smooth black leather or leather-like material with a moderately glossy finish; exact material cannot be confirmed.",
        "lining_description": "not_visible - interior never shown",
        "strap_construction": "photos 1-5: two long fixed shoulder handles, apparently leather or leather-like, with folded\/stitched edges; attachment details are partly obscured.",
        "stitching_description": "photos 1-3: visible decorative and perimeter stitching appears mostly even; fine stitch quality is not sufficiently close for authentication."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0034,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.18,
                "vintage_probability": 0.55,
                "authenticity_confidence": 0.12,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.18,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: structured black leather handbag with substantial construction and four metal feet",
                    "photo 2: stitching appears generally even and the leather has a smooth, substantial appearance",
                    "photo 6: protective feet are visible on the base"
                ],
                "negative_evidence": [
                    "photo 1: no legible COACH wordmark, horse-and-carriage, creed patch, or hangtag is visible",
                    "photo 1: central gold-tone clasp and decorative paneling do not clearly match a documented classic Coach turnlock silhouette",
                    "photos 1-5: the bag has an unusual structured satchel design that cannot be confidently matched to the listed Coach catalog styles",
                    "photo 6: hardware appears bright and mixed-looking, but the photos do not provide enough detail to establish Coach-era hardware consistency"
                ],
                "missing_information": [
                    "photo request: interior emptied and photographed, especially the back wall, slip pocket, and any creed patch",
                    "photo request: close-up of any interior label, fabric tag, zipper pull, and clasp engraving",
                    "photo request: close-up of the central clasp and all hardware",
                    "seller-stated dimensions, material composition, and country of manufacture"
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible in the six provided photos, so a Coach attribution is unsupported.",
                    "The clasp and overall construction may represent a non-Coach lookalike or another vintage leather brand; silhouette alone cannot authenticate Coach."
                ],
                "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: small gold-tone rectangular clasp centered near the top; photo 6: four small metal feet visible on the base. Hardware markings are not legible.",
                    "leather_description": "photos 1-3: smooth black leather or leather-like material with a moderately glossy finish; exact material cannot be confirmed.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1-5: two long fixed shoulder handles, apparently leather or leather-like, with folded\/stitched edges; attachment details are partly obscured.",
                    "stitching_description": "photos 1-3: visible decorative and perimeter stitching appears mostly even; fine stitch quality is not sufficiently close for authentication."
                },
                "possible_model_reasoning": [
                    "No Coach model is listed because no visible Coach identifier or sufficiently distinctive catalog match is present.",
                    "The structured satchel form with fixed shoulder handles and a central clasp could be a vintage or retro-styled leather handbag from another maker, but the interior and brand marks are not shown.",
                    "Condition: approximately Very Good from the visible exterior; light surface scratches and ordinary handling are visible, while the interior and strap attachment areas are unknown."
                ],
                "confidence": 0.72,
                "recommended_max_bid": 12,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1, photo 5: frame\/kisslock-type top clasp closure inconsistent with vintage Coach turnlock classics",
                    "photo 6: mixed hardware tones (gold-tone top clasp with silver-tone base feet) inconsistent with vintage Coach solid-brass consistency"
                ],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "interior views emptied including back wall and pockets for creed patch check",
                    "close-up of top clasp\/frame hardware front and back",
                    "close-up of zipper pulls or hardware brand stamps and Made-in line",
                    "bottom corners and edge wear close-up",
                    "strap\/handle anchors and full-length handle detail",
                    "seller-stated dimensions and weight for scale"
                ],
                "negative_evidence": [
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 1, photo 5: top frame clasp closure, no turnlock present",
                    "photo 1-3: shiny smooth coated leather with sheen, not matte glove-tanned full-grain with natural grain",
                    "photo 1-3: decorative diagonal stitched panels on lower front and oval applique on front tab, not a Coach catalog silhouette",
                    "photo 6: four silver-tone base feet plus gold-tone top clasp - mixed hardware tones",
                    "photo 1, photo 5: double fixed stitched-in top handles, not Coach buckle-adjustable or dogleash-detachable strap"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone frame\/kisslock-type top clasp (photo 1, photo 5) and four silver-tone dome base feet (photo 6); mixed tones; no COACH engraving visible",
                    "leather_description": "black smooth leather with high sheen\/coated appearance, soft slouch at sides; does not show matte glove-tanned grain or suede-back interior",
                    "lining_description": "not_visible - interior never shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even machine stitching matched to leather with decorative diagonal triple-seam detailing on lower front corners and oval detail on front tab",
                    "strap_construction": "double fixed top shoulder handles stitched directly to frame\/body, not adjustable and not detachable; no buckles, slides or dogleash clips visible",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: black leather handbag of a size and age where misidentified vintage could hide, so triage warranted"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: frame-clasp top, fixed double handles, front tab with oval applique and diagonal corner seaming match 1980s-1990s department-store frame purse, not City Bag (9790), Court (9870), Station (5130), Willis (9927) or other turnlock classics",
                    "Era reasoning: construction and sheen suggest 1980s-1990s non-Coach vintage-style bag, but with no identifiers era for Coach purposes is non-Coach modern",
                    "Condition: Good to Very Good; exterior shows light surface scuffs and softening but no major corner wear-through visible (photo 3, photo 6); interior, strap fold and odor unknown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.45
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17698,
            "output_tokens": 756,
            "total_tokens": 18454,
            "estimated_cost_usd": 0.008894
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18033,
            "output_tokens": 1724,
            "total_tokens": 19757,
            "estimated_cost_usd": 0.004986
        }
    ]
}