Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.025,
    "vintage_probability": 0.34,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.795,
    "seller_misidentification_probability": 0.04,
    "confidence": 0.88,
    "recommended_max_bid": 17.5,
    "estimated_resale_low": 20,
    "estimated_resale_high": 52.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 2: substantial brown leather handbag with brass-tone hardware and a flap closure.",
        "photo 6: interior appears leather-lined with a striped fabric section, and the bag has visible structured construction.",
        "photo 2,3,5: leather handbag with brass-tone hardware"
    ],
    "negative_evidence": [
        "photo 2: prominent stylized initials\/monogram and dragon artwork are visible; no Coach wordmark or horse-and-carriage is present.",
        "photo 1: decorative dragon panel and extensive lacing are not characteristic of the documented Coach classic silhouettes.",
        "photo 4: the central closure is an elongated oval turnlock unlike the typical vintage Coach rounded-rectangle turnlock geometry.",
        "photo 6: striped lining and heavily decorative western lacing do not provide Coach identification.",
        "photo 1: no Coach creed patch, serial\/style number, or recognizable Coach branding is visible.",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 2,4: oval twist-lock, not Coach turnlock geometry with thin tab and rounded-rectangle keeper",
        "photo 2,3,4,5: all-over edge lacing \/ blanket-stitch and hand-tooled dragons with MAC monogram, never used on Coach",
        "photo 3,5: strap attached with dome rivets and D-rings, not Coach buckle\/dogleash or dowel construction",
        "photo 6: side profile and laced seams do not match any Coach catalog silhouette"
    ],
    "missing_information": [
        "photo 6: a complete straight-on view of the interior back wall and every pocket is needed to confirm whether any hidden brand label or creed exists.",
        "photo 6: close-ups of the interior seams and lining label are needed.",
        "photo 5: close-ups of zipper pulls, hardware backs, and any maker stamps are absent.",
        "seller-stated dimensions, country of manufacture, and provenance are not provided.",
        "interior views emptied showing lining and any stamped patch or labels",
        "creed patch straight-on close-up if present",
        "hardware back-plates and any maker stamps",
        "dimensions and weight for scale"
    ],
    "authenticity_concerns": [
        "photo 2: the initials and dragon motif indicate an artisan, western, or other non-Coach design rather than a Coach model.",
        "photo 4: the decorative turnlock and extensive contrast lacing are inconsistent with the documented construction of vintage Coach classics.",
        "photo 6: the visible striped lining and nonstandard decorative construction provide no supporting Coach identifiers.",
        "photo 2,4: hand-tooled dragon panels and large MAC lettering are not a Coach design language",
        "photo 2,3,5: whipstitched\/laced edge construction and dome-rivet strap mounts inconsistent with vintage Coach classics"
    ],
    "possible_model_reasoning": [
        "No documented Coach model is a close match for the western dragon artwork, initials, punched lacing, and oval turnlock visible in photos 1-5.",
        "The seller title's 'MAC' appears consistent with the large initials visible on the bag, but this is seller-stated\/listing context and is not a Coach identifier.",
        "Condition: Very Good visually; leather remains structurally intact and hardware is present, though surface creasing and wear are visible. Bottom and interior coverage are incomplete, so hidden damage and odor are unknown.",
        "No Coach model fits: tooled dragons, MAC lettering, laced edges and oval twist-lock have no catalog counterpart",
        "No creed\/serial\/wordmark visible in any photo to decode era",
        "Condition: Very Good to Good; leather shows patina and creasing but no tears visible (photo 3,5,6), interior and strap fold not fully shown so capped"
    ],
    "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 2: polished gold-tone oval turnlock with a vertical bar; additional gold-tone rivets, rings, and feet are visible. No Coach engraving is visible.",
        "leather_description": "photos 1-7: brown leather or leather-like material with extensive punched holes, contrast lacing, embossed\/painted dragon panels, and visible surface variation; exact leather type is not confirmed.",
        "lining_description": "photo 6: a striped fabric section is visible inside the opening; the rest of the interior and any label are not visible.",
        "strap_construction": "photos 2-4: long stitched brown strap attached through leather tabs and brass-tone rings; full length and adjustment details are not visible.",
        "stitching_description": "photos 1-7: extensive decorative hand-lacing\/punched-edge construction and generally visible machine stitching on the strap; stitching quality is not diagnostic of Coach."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0069,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.94,
                "seller_misidentification_probability": 0.06,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 2: substantial brown leather handbag with brass-tone hardware and a flap closure.",
                    "photo 6: interior appears leather-lined with a striped fabric section, and the bag has visible structured construction."
                ],
                "negative_evidence": [
                    "photo 2: prominent stylized initials\/monogram and dragon artwork are visible; no Coach wordmark or horse-and-carriage is present.",
                    "photo 1: decorative dragon panel and extensive lacing are not characteristic of the documented Coach classic silhouettes.",
                    "photo 4: the central closure is an elongated oval turnlock unlike the typical vintage Coach rounded-rectangle turnlock geometry.",
                    "photo 6: striped lining and heavily decorative western lacing do not provide Coach identification.",
                    "photo 1: no Coach creed patch, serial\/style number, or recognizable Coach branding is visible."
                ],
                "missing_information": [
                    "photo 6: a complete straight-on view of the interior back wall and every pocket is needed to confirm whether any hidden brand label or creed exists.",
                    "photo 6: close-ups of the interior seams and lining label are needed.",
                    "photo 5: close-ups of zipper pulls, hardware backs, and any maker stamps are absent.",
                    "seller-stated dimensions, country of manufacture, and provenance are not provided."
                ],
                "authenticity_concerns": [
                    "photo 2: the initials and dragon motif indicate an artisan, western, or other non-Coach design rather than a Coach model.",
                    "photo 4: the decorative turnlock and extensive contrast lacing are inconsistent with the documented construction of vintage Coach classics.",
                    "photo 6: the visible striped lining and nonstandard decorative construction provide no supporting Coach identifiers."
                ],
                "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 2: polished gold-tone oval turnlock with a vertical bar; additional gold-tone rivets, rings, and feet are visible. No Coach engraving is visible.",
                    "leather_description": "photos 1-7: brown leather or leather-like material with extensive punched holes, contrast lacing, embossed\/painted dragon panels, and visible surface variation; exact leather type is not confirmed.",
                    "lining_description": "photo 6: a striped fabric section is visible inside the opening; the rest of the interior and any label are not visible.",
                    "strap_construction": "photos 2-4: long stitched brown strap attached through leather tabs and brass-tone rings; full length and adjustment details are not visible.",
                    "stitching_description": "photos 1-7: extensive decorative hand-lacing\/punched-edge construction and generally visible machine stitching on the strap; stitching quality is not diagnostic of Coach."
                },
                "possible_model_reasoning": [
                    "No documented Coach model is a close match for the western dragon artwork, initials, punched lacing, and oval turnlock visible in photos 1-5.",
                    "The seller title's 'MAC' appears consistent with the large initials visible on the bag, but this is seller-stated\/listing context and is not a Coach identifier.",
                    "Condition: Very Good visually; leather remains structurally intact and hardware is present, though surface creasing and wear are visible. Bottom and interior coverage are incomplete, so hidden damage and odor are unknown."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 20,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 2,4: hand-tooled dragon panels and large MAC lettering are not a Coach design language",
                    "photo 2,3,5: whipstitched\/laced edge construction and dome-rivet strap mounts inconsistent with vintage Coach classics"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 45,
                "estimated_resale_low": 20,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "interior views emptied showing lining and any stamped patch or labels",
                    "creed patch straight-on close-up if present",
                    "hardware back-plates and any maker stamps",
                    "dimensions and weight for scale"
                ],
                "negative_evidence": [
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 2,4: oval twist-lock, not Coach turnlock geometry with thin tab and rounded-rectangle keeper",
                    "photo 2,3,4,5: all-over edge lacing \/ blanket-stitch and hand-tooled dragons with MAC monogram, never used on Coach",
                    "photo 3,5: strap attached with dome rivets and D-rings, not Coach buckle\/dogleash or dowel construction",
                    "photo 6: side profile and laced seams do not match any Coach catalog silhouette"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone oval twist-lock on flap, brass D-rings, dome rivets and base feet; bright polished tone, not vintage solid-brass Coach turnlock",
                    "leather_description": "medium-brown smooth leather with hand-tooled and painted dragon panels and MAC lettering, laced edges",
                    "lining_description": "not_visible; interior not shown except small striped glimpse under flap in photo 6",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "heavy dark brown leather whipstitch\/lacing around all edges and flap; machine topstitching on shoulder strap",
                    "strap_construction": "single narrow flat shoulder strap, riveted to D-ring tabs on front pocket",
                    "turnlock_present": true
                },
                "positive_evidence": [
                    "photo 2,3,5: leather handbag with brass-tone hardware"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: tooled dragons, MAC lettering, laced edges and oval twist-lock have no catalog counterpart",
                    "No creed\/serial\/wordmark visible in any photo to decode era",
                    "Condition: Very Good to Good; leather shows patina and creasing but no tears visible (photo 3,5,6), interior and strap fold not fully shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.5
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28061,
            "output_tokens": 851,
            "total_tokens": 28912,
            "estimated_cost_usd": 0.013267
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 29427,
            "output_tokens": 1672,
            "total_tokens": 31099,
            "estimated_cost_usd": 0.007223
        }
    ]
}