Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.025,
    "vintage_probability": 0.215,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.7,
    "seller_misidentification_probability": 0.49,
    "confidence": 0.785,
    "recommended_max_bid": 27.5,
    "estimated_resale_low": 35,
    "estimated_resale_high": 120,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a structured leather handbag with handles, gusseted body, top clasp, exterior rear zip pocket, and protective feet.",
        "photo 1,2,3,4: leather handbag with top handles - handbag object confirmed"
    ],
    "negative_evidence": [
        "photo 1: Large polished gold clasp resembles a non-Coach designer Gancini-style motif rather than a Coach turnlock or horse-and-carriage mark.",
        "photo 1: Exotic quill-pattern leather and highly decorative hardware do not match the classic Coach glove-tanned construction associated with typical vintage Coach finds.",
        "photo 2: No legible Coach wordmark, horse-and-carriage, or other Coach identifier is visible.",
        "photo 3: Rear zipper pull and hardware show no visible Coach marking.",
        "photo 4: Bottom hardware and construction show no Coach identifier.",
        "Listing title: Seller describes the bag as unbranded, so the title provides no brand support.",
        "photo 1,2,3: full-quill ostrich leather body - not vintage Coach glove-tanned cowhide",
        "photo 1,2: large bright gold-tone double-C belt-buckle clasp - not Coach turnlock geometry, chunky plated look",
        "photo 1,2,3,4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 3: back exterior zip pocket with small D-ring pull - not classic Coach unlined interior layout",
        "photo 1,4: gold-tone base feet and top-handle mounts - plated tone, no solid-brass vintage character"
    ],
    "missing_information": [
        "photo 1-4: Interior view, including the back wall, pockets, lining, and any creed patch or fabric tag.",
        "photo 1-4: Close-up of the clasp, zipper pulls, and any interior or exterior stamped markings.",
        "photo 1-4: Country-of-origin label, maker label, and full strap or handle attachment details.",
        "Seller-stated dimensions, material provenance, and confirmation whether the clasp bears a designer logo.",
        "photo of interior emptied and lining - no interior view shown",
        "creed patch straight-on in raking light - not shown",
        "close-up of hardware engravings \/ maker stamp and zipper-pull brand",
        "hangtag both faces if present",
        "seller-stated dimensions and scale cue"
    ],
    "authenticity_concerns": [
        "photo 1: The prominent symmetrical clasp is a strong non-Coach\/lookalike cue and is inconsistent with standard vintage Coach hardware.",
        "photo 1-4: No visible Coach creed, serial\/style number, wordmark, hangtag, or carriage emblem; Coach manufacture cannot be supported from the available views.",
        "photo 1: The seller's 'genuine ostrich' claim is not independently verifiable from photos; the leather could be ostrich or embossed\/finished leather."
    ],
    "possible_model_reasoning": [
        "The silhouette is a modern structured exotic-leather tote\/handbag with a decorative designer-style clasp, not a recognizable Coach catalog model.",
        "The clasp may evoke a Gancini-style motif associated with other luxury makers; this is not evidence of Coach manufacture.",
        "Condition appears Good to Very Good: visible creasing, surface wear, and glossy uneven finish on the body, while the structure and hardware appear intact; interior and odor are unknown.",
        "With no visible Coach identifier and no interior photographs, dating and maker attribution remain uncertain.",
        "No Coach catalog silhouette matches: ostrich tote with belt-buckle front and back zip is not City Bag, Willis, Court, Station, Duffle or other classic; exotic skin and buckle hardware inconsistent with 1970s-1990s glove-tanned classics",
        "No hard identifiers visible to decode era; construction suggests modern exotic fashion bag, non-Coach",
        "Condition: appears Good to Very Good exterior with creasing\/slouching photo 2,3, base intact photo 4; interior not shown so grade capped, 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": "photo 1-4: Polished gold-tone central clasp, small gold-tone handle fittings, zipper hardware, and multiple protective feet; the central clasp is not visibly a Coach turnlock.",
        "leather_description": "photo 1-4: Dark brown-black glossy leather with prominent raised quill pattern consistent in appearance with ostrich or ostrich-embossed leather; actual material is unverified.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1-3: Two short padded top handles attached with small gold-tone fittings; no detachable shoulder strap is visible.",
        "stitching_description": "photo 1-4: Visible perimeter and panel stitching appears generally straight and even, though close-up stress-point assessment is limited."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0351,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.08,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.96,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a structured leather handbag with handles, gusseted body, top clasp, exterior rear zip pocket, and protective feet."
                ],
                "negative_evidence": [
                    "photo 1: Large polished gold clasp resembles a non-Coach designer Gancini-style motif rather than a Coach turnlock or horse-and-carriage mark.",
                    "photo 1: Exotic quill-pattern leather and highly decorative hardware do not match the classic Coach glove-tanned construction associated with typical vintage Coach finds.",
                    "photo 2: No legible Coach wordmark, horse-and-carriage, or other Coach identifier is visible.",
                    "photo 3: Rear zipper pull and hardware show no visible Coach marking.",
                    "photo 4: Bottom hardware and construction show no Coach identifier.",
                    "Listing title: Seller describes the bag as unbranded, so the title provides no brand support."
                ],
                "missing_information": [
                    "photo 1-4: Interior view, including the back wall, pockets, lining, and any creed patch or fabric tag.",
                    "photo 1-4: Close-up of the clasp, zipper pulls, and any interior or exterior stamped markings.",
                    "photo 1-4: Country-of-origin label, maker label, and full strap or handle attachment details.",
                    "Seller-stated dimensions, material provenance, and confirmation whether the clasp bears a designer logo."
                ],
                "authenticity_concerns": [
                    "photo 1: The prominent symmetrical clasp is a strong non-Coach\/lookalike cue and is inconsistent with standard vintage Coach hardware.",
                    "photo 1-4: No visible Coach creed, serial\/style number, wordmark, hangtag, or carriage emblem; Coach manufacture cannot be supported from the available views.",
                    "photo 1: The seller's 'genuine ostrich' claim is not independently verifiable from photos; the leather could be ostrich or embossed\/finished leather."
                ],
                "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 1-4: Polished gold-tone central clasp, small gold-tone handle fittings, zipper hardware, and multiple protective feet; the central clasp is not visibly a Coach turnlock.",
                    "leather_description": "photo 1-4: Dark brown-black glossy leather with prominent raised quill pattern consistent in appearance with ostrich or ostrich-embossed leather; actual material is unverified.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1-3: Two short padded top handles attached with small gold-tone fittings; no detachable shoulder strap is visible.",
                    "stitching_description": "photo 1-4: Visible perimeter and panel stitching appears generally straight and even, though close-up stress-point assessment is limited."
                },
                "possible_model_reasoning": [
                    "The silhouette is a modern structured exotic-leather tote\/handbag with a decorative designer-style clasp, not a recognizable Coach catalog model.",
                    "The clasp may evoke a Gancini-style motif associated with other luxury makers; this is not evidence of Coach manufacture.",
                    "Condition appears Good to Very Good: visible creasing, surface wear, and glossy uneven finish on the body, while the structure and hardware appear intact; interior and odor are unknown.",
                    "With no visible Coach identifier and no interior photographs, dating and maker attribution remain uncertain."
                ],
                "confidence": 0.79,
                "recommended_max_bid": 25,
                "estimated_resale_low": 30,
                "estimated_resale_high": 120
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 120,
                "estimated_resale_low": 40,
                "image_quality_score": 0.62,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior emptied and lining - no interior view shown",
                    "creed patch straight-on in raking light - not shown",
                    "close-up of hardware engravings \/ maker stamp and zipper-pull brand",
                    "hangtag both faces if present",
                    "seller-stated dimensions and scale cue"
                ],
                "negative_evidence": [
                    "photo 1,2,3: full-quill ostrich leather body - not vintage Coach glove-tanned cowhide",
                    "photo 1,2: large bright gold-tone double-C belt-buckle clasp - not Coach turnlock geometry, chunky plated look",
                    "photo 1,2,3,4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 3: back exterior zip pocket with small D-ring pull - not classic Coach unlined interior layout",
                    "photo 1,4: gold-tone base feet and top-handle mounts - plated tone, no solid-brass vintage character"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone large double-C belt-buckle front clasp, gold-tone feet on base, gold-tone handle rings and back zip pull; plated appearance, not solid brass turnlock",
                    "leather_description": "dark brown\/black full-quill ostrich leather with quill bumps and glossy finish visible photo 1,2,3,4",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible in detail; edge seams visible photo 2,3 but stitch evenness not assessable",
                    "strap_construction": "twin short top handles in dark leather, fixed mounts; front belt-strap detail threading through buckle",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1,2,3,4: leather handbag with top handles - handbag object confirmed"
                ],
                "possible_model_reasoning": [
                    "No Coach catalog silhouette matches: ostrich tote with belt-buckle front and back zip is not City Bag, Willis, Court, Station, Duffle or other classic; exotic skin and buckle hardware inconsistent with 1970s-1990s glove-tanned classics",
                    "No hard identifiers visible to decode era; construction suggests modern exotic fashion bag, non-Coach",
                    "Condition: appears Good to Very Good exterior with creasing\/slouching photo 2,3, base intact photo 4; interior not shown so grade capped, lining unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 30,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.35
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 21175,
            "output_tokens": 984,
            "total_tokens": 22159,
            "estimated_cost_usd": 0.010832
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 21969,
            "output_tokens": 1269,
            "total_tokens": 23238,
            "estimated_cost_usd": 0.005409
        }
    ]
}