Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.025,
    "vintage_probability": 0.025,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.78,
    "seller_misidentification_probability": 0.075,
    "confidence": 0.86,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a structured leather-like handbag with dual top handles and a front closure.",
        "photo 6: a detachable shoulder strap is visible."
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, or Coach hangtag.",
        "photo 1: the large central plated clasp and strap construction are more reminiscent of a generic Birkin-inspired design than a Coach model.",
        "photo 1: the highly uniform crosshatched leather finish and contrasting dark edge treatment do not resemble classic vintage Coach glove-tanned leather.",
        "photo 3: rear construction and handle attachments do not match a recognizable catalog Coach silhouette.",
        "photo 2: the closure hardware appears bright, plated, and blocky rather than the elegant solid-brass turnlocks typical of vintage Coach.",
        "photo 1: seller identifies the bag only as no brand; this is weak context and supplies no Coach-specific evidence.",
        "photo 1: Hermes Birkin-style silhouette with belted turn-lock and sangles - no matching Coach catalog style in \u00a74",
        "photo 1,2,6: Birkin-type padlock turn assembly with bright gold plating, not vintage Coach solid brass turnlock geometry",
        "photo 1,3: uniform crossgrain\/Epsom-type embossed leather with contrast white stitching, not glove-tanned cowhide with tone-matched stitching",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 4,5: dark painted edge coating and structured coated panels, not unlined suede-back glove-tanned construction"
    ],
    "missing_information": [
        "photo 1-6: interior and interior label are not shown.",
        "photo 1-6: no close-up of any creed patch, serial\/style number, country-of-origin mark, or fabric tag.",
        "photo 1-6: zipper pulls, hardware backs, and strap attachment details are not shown closely enough for maker identification.",
        "photo 1-6: bottom and corner condition are only partially visible.",
        "photo 1-6: interior views not shown, lining and creed area unknown",
        "photo 1-6: no creed patch shown - request straight-on interior back wall\/pocket view",
        "photo 1-6: no COACH wordmark, hangtag, or hardware engraving legible - request close-ups",
        "photo 1-6: no bottom view showing corners\/feet"
    ],
    "authenticity_concerns": [
        "photo 1: the design appears to be a generic or designer-inspired structured bag rather than a Coach product.",
        "photo 2: chunky shiny plated clasp hardware is inconsistent with the usual hardware construction of vintage Coach classics.",
        "photo 1: no Coach identifier is visible anywhere in the exterior views."
    ],
    "possible_model_reasoning": [
        "The silhouette is a structured top-handle satchel with a central clasp, but it does not closely match the listed vintage Coach City Bag, Willis, Court, Station, or other recognizable Coach models.",
        "The visible material, clasp, and edge treatment point toward a modern unbranded or designer-inspired handbag rather than a pre-2000 Coach glove-tanned leather bag.",
        "Condition appears Good to Very Good: minor front marks are visible in photos 1-2, with no obvious major structural damage; interior, odor, lining, and bottom condition are unknown.",
        "No Coach model fits: Birkin-style belted tote with dual rolled handles and front lock plate has no counterpart in \u00a74.2 classic or \u00a74.3 modern catalog",
        "Construction points away from Coach: crossgrain coated leather, contrast stitching, bright plated hardware, painted edges vs unlined glove-tanned + solid brass + matched stitching",
        "No hard identifiers: no creed, no serial, no wordmark, no hangtag in any of 6 photos",
        "Condition: Good; photo 1,2,6 show minor front marks\/scuffs noted by seller, shape intact, hardware bright, interior\/bottom\/strap wear unknown"
    ],
    "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": "photo 1-2: bright gold-tone rectangular front clasp with a rotating bar and multiple small metal fittings; no Coach engraving is visible.",
        "leather_description": "photo 1-6: orange-tan, highly uniform crosshatched textured leather or leather-like material with dark contrasting edge trim.",
        "lining_description": "not_visible",
        "strap_construction": "photo 4-6: dual rounded top handles plus a detachable long shoulder strap; strap has matching textured material and dark edging.",
        "stitching_description": "photo 1-6: visible light-colored edge stitching appears generally even; close stress-point inspection is limited."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0013,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a structured leather-like handbag with dual top handles and a front closure.",
                    "photo 6: a detachable shoulder strap is visible."
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, or Coach hangtag.",
                    "photo 1: the large central plated clasp and strap construction are more reminiscent of a generic Birkin-inspired design than a Coach model.",
                    "photo 1: the highly uniform crosshatched leather finish and contrasting dark edge treatment do not resemble classic vintage Coach glove-tanned leather.",
                    "photo 3: rear construction and handle attachments do not match a recognizable catalog Coach silhouette.",
                    "photo 2: the closure hardware appears bright, plated, and blocky rather than the elegant solid-brass turnlocks typical of vintage Coach.",
                    "photo 1: seller identifies the bag only as no brand; this is weak context and supplies no Coach-specific evidence."
                ],
                "missing_information": [
                    "photo 1-6: interior and interior label are not shown.",
                    "photo 1-6: no close-up of any creed patch, serial\/style number, country-of-origin mark, or fabric tag.",
                    "photo 1-6: zipper pulls, hardware backs, and strap attachment details are not shown closely enough for maker identification.",
                    "photo 1-6: bottom and corner condition are only partially visible."
                ],
                "authenticity_concerns": [
                    "photo 1: the design appears to be a generic or designer-inspired structured bag rather than a Coach product.",
                    "photo 2: chunky shiny plated clasp hardware is inconsistent with the usual hardware construction of vintage Coach classics.",
                    "photo 1: no Coach identifier is visible anywhere in the exterior views."
                ],
                "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": "photo 1-2: bright gold-tone rectangular front clasp with a rotating bar and multiple small metal fittings; no Coach engraving is visible.",
                    "leather_description": "photo 1-6: orange-tan, highly uniform crosshatched textured leather or leather-like material with dark contrasting edge trim.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 4-6: dual rounded top handles plus a detachable long shoulder strap; strap has matching textured material and dark edging.",
                    "stitching_description": "photo 1-6: visible light-colored edge stitching appears generally even; close stress-point inspection is limited."
                },
                "possible_model_reasoning": [
                    "The silhouette is a structured top-handle satchel with a central clasp, but it does not closely match the listed vintage Coach City Bag, Willis, Court, Station, or other recognizable Coach models.",
                    "The visible material, clasp, and edge treatment point toward a modern unbranded or designer-inspired handbag rather than a pre-2000 Coach glove-tanned leather bag.",
                    "Condition appears Good to Very Good: minor front marks are visible in photos 1-2, with no obvious major structural damage; interior, odor, lining, and bottom condition are unknown."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1-6: interior views not shown, lining and creed area unknown",
                    "photo 1-6: no creed patch shown - request straight-on interior back wall\/pocket view",
                    "photo 1-6: no COACH wordmark, hangtag, or hardware engraving legible - request close-ups",
                    "photo 1-6: no bottom view showing corners\/feet"
                ],
                "negative_evidence": [
                    "photo 1: Hermes Birkin-style silhouette with belted turn-lock and sangles - no matching Coach catalog style in \u00a74",
                    "photo 1,2,6: Birkin-type padlock turn assembly with bright gold plating, not vintage Coach solid brass turnlock geometry",
                    "photo 1,3: uniform crossgrain\/Epsom-type embossed leather with contrast white stitching, not glove-tanned cowhide with tone-matched stitching",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 4,5: dark painted edge coating and structured coated panels, not unlined suede-back glove-tanned construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone plated Birkin-style turn-lock with front plate and strap belt, photo 2 close-up; bright plated finish, not aged solid brass; side D-rings for shoulder strap",
                    "leather_description": "warm tan crossgrain\/epsom-embossed structured leather, uniform grain, semi-gloss coated appearance; not glove-tanned full-grain with natural scars\/veins",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "contrast off-white stitching around panels, handles and belt, even machine stitching; not tone-matched vintage Coach stitching",
                    "strap_construction": "dual rolled top handles stitched to body, plus detachable thin shoulder strap on side D-rings photo 6",
                    "turnlock_present": true
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: Birkin-style belted tote with dual rolled handles and front lock plate has no counterpart in \u00a74.2 classic or \u00a74.3 modern catalog",
                    "Construction points away from Coach: crossgrain coated leather, contrast stitching, bright plated hardware, painted edges vs unlined glove-tanned + solid brass + matched stitching",
                    "No hard identifiers: no creed, no serial, no wordmark, no hangtag in any of 6 photos",
                    "Condition: Good; photo 1,2,6 show minor front marks\/scuffs noted by seller, shape intact, hardware bright, interior\/bottom\/strap wear unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18111,
            "output_tokens": 851,
            "total_tokens": 18962,
            "estimated_cost_usd": 0.009287
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18663,
            "output_tokens": 1339,
            "total_tokens": 20002,
            "estimated_cost_usd": 0.004804
        }
    ]
}