Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.08,
    "vintage_probability": 0.35,
    "authenticity_confidence": 0.08,
    "image_quality_score": 0.755,
    "seller_misidentification_probability": 0.1,
    "confidence": 0.745,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 10,
    "estimated_resale_high": 35,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather shoulder bag with a compact flap silhouette and adjustable strap.",
        "photo 2: brass-tone hardware and leather construction are broadly compatible with some older handbags.",
        "photo 2: a small embossed or stamped marking may be present on the strap end, but it is not legible and cannot be identified as COACH.",
        "photo 2,4,6: leather flap shoulder bag with brass-tone hardware in burgundy, population where misidentified Coach hides",
        "photo 2: buckle-adjustable strap and structured flap form broadly similar to vintage shoulder bags"
    ],
    "negative_evidence": [
        "photo 2: the front closure is a rectangular box clasp rather than a recognizable vintage Coach turnlock.",
        "photo 4: the clasp and leather surface appear generic and relatively glossy, without a visible Coach wordmark, horse-and-carriage, or hangtag.",
        "photos 1-6: no visible Coach creed patch or serial\/style number.",
        "photo 3: the interior appears fabric-lined, whereas many classic vintage Coach glove-tanned styles are unlined suede-back leather.",
        "photo 1: bright corner protectors and the overall construction do not strongly match the typical classic Coach catalog silhouettes.",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 3: lined tan interior with center divider, not unlined suede-back glove-tanned leather",
        "photo 4-5: flap lock geometry is small rectangular push-lock, not Coach turnlock",
        "photo 1-2: exterior back zip pocket plus add-on metal corner guards not seen on Coach classics",
        "photo 2,6: thin buckle strap and overall tall narrow flap silhouette does not match catalog Willis\/Court\/Station\/Dinky"
    ],
    "missing_information": [
        "A straight-on photo of every interior wall and pocket, including any leather creed patch or fabric tag.",
        "Close-up photos of the strap-end marking, clasp, zipper pull, and any hardware engravings.",
        "Clear photos of the bottom, side seams, strap attachments, and all four corners.",
        "Seller-stated dimensions and a photo of any maker label or stamp inside.",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
        "photo of any interior fabric tags, brand stamps or Made-in line",
        "photo of hardware engravings on lock, zipper pull and buckle",
        "photo of bottom and close-up of corners and strap attachments",
        "seller-stated dimensions and lining material"
    ],
    "authenticity_concerns": [
        "The bag has generic lookalike construction and hardware with no visible Coach identifier.",
        "The rectangular clasp, glossy leather, lining, and corner protectors are not a strong match for the classic Coach styles suggested by the silhouette.",
        "Because the interior identification area is not fully documented, a transplanted or hidden identifier cannot be ruled out, but none is visible in the supplied photos.",
        "photo 4-5: flap lock is small rectangular box\/push-lock, not Coach turnlock geometry with wide oval back-plate and slim tab",
        "photo 1: metal corner protectors on bottom corners inconsistent with vintage Coach classics",
        "photo 3: lined interior compartments inconsistent with unlined glove-tanned Coach classics"
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because the visible clasp and silhouette do not closely match a recognizable Coach catalog style and no identifier is visible.",
        "Condition: Good; visible surface scuffs, creasing, and finish wear on the exterior (photos 1, 4, and 6), with stitching and hardware apparently intact. Interior condition is only partly shown.",
        "No Coach model fits: lock is not turnlock, lined interior, corner protectors and back-zip layout inconsistent with City\/Willis\/Court\/Station\/Dinky",
        "No creed, serial, wordmark or hangtag visible to decode era or style",
        "Condition: Good; surface scratches and sheen wear (photo 4), corner edge wear under guards (photo 1), interior marks not fully gradable due to blur (photo 3), no bottom\/interior detail so capped"
    ],
    "estimated_era": "unknown",
    "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 rectangular box clasp, zipper hardware, and metal corner protectors; no legible brand engraving visible.",
        "leather_description": "Smooth burgundy or burgundy-brown leather with a glossy finish and visible surface scuffs\/creases.",
        "lining_description": "Light beige fabric-like lining is visible in the interior; exact material and label are not visible.",
        "strap_construction": "Long adjustable leather shoulder strap with a buckle; attachment details are partly visible.",
        "stitching_description": "Generally even parallel stitching is visible around the flap and body; fine construction details are not fully assessable."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0029,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.08,
                "vintage_probability": 0.35,
                "authenticity_confidence": 0.08,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather shoulder bag with a compact flap silhouette and adjustable strap.",
                    "photo 2: brass-tone hardware and leather construction are broadly compatible with some older handbags.",
                    "photo 2: a small embossed or stamped marking may be present on the strap end, but it is not legible and cannot be identified as COACH."
                ],
                "negative_evidence": [
                    "photo 2: the front closure is a rectangular box clasp rather than a recognizable vintage Coach turnlock.",
                    "photo 4: the clasp and leather surface appear generic and relatively glossy, without a visible Coach wordmark, horse-and-carriage, or hangtag.",
                    "photos 1-6: no visible Coach creed patch or serial\/style number.",
                    "photo 3: the interior appears fabric-lined, whereas many classic vintage Coach glove-tanned styles are unlined suede-back leather.",
                    "photo 1: bright corner protectors and the overall construction do not strongly match the typical classic Coach catalog silhouettes."
                ],
                "missing_information": [
                    "A straight-on photo of every interior wall and pocket, including any leather creed patch or fabric tag.",
                    "Close-up photos of the strap-end marking, clasp, zipper pull, and any hardware engravings.",
                    "Clear photos of the bottom, side seams, strap attachments, and all four corners.",
                    "Seller-stated dimensions and a photo of any maker label or stamp inside."
                ],
                "authenticity_concerns": [
                    "The bag has generic lookalike construction and hardware with no visible Coach identifier.",
                    "The rectangular clasp, glossy leather, lining, and corner protectors are not a strong match for the classic Coach styles suggested by the silhouette.",
                    "Because the interior identification area is not fully documented, a transplanted or hidden identifier cannot be ruled out, but none is visible in the supplied photos."
                ],
                "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 rectangular box clasp, zipper hardware, and metal corner protectors; no legible brand engraving visible.",
                    "leather_description": "Smooth burgundy or burgundy-brown leather with a glossy finish and visible surface scuffs\/creases.",
                    "lining_description": "Light beige fabric-like lining is visible in the interior; exact material and label are not visible.",
                    "strap_construction": "Long adjustable leather shoulder strap with a buckle; attachment details are partly visible.",
                    "stitching_description": "Generally even parallel stitching is visible around the flap and body; fine construction details are not fully assessable."
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because the visible clasp and silhouette do not closely match a recognizable Coach catalog style and no identifier is visible.",
                    "Condition: Good; visible surface scuffs, creasing, and finish wear on the exterior (photos 1, 4, and 6), with stitching and hardware apparently intact. Interior condition is only partly shown."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 15,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 4-5: flap lock is small rectangular box\/push-lock, not Coach turnlock geometry with wide oval back-plate and slim tab",
                    "photo 1: metal corner protectors on bottom corners inconsistent with vintage Coach classics",
                    "photo 3: lined interior compartments inconsistent with unlined glove-tanned Coach classics"
                ],
                "authenticity_confidence": 0.08,
                "coach_probability": 0.08,
                "confidence": 0.65,
                "estimated_era": "unknown",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
                    "photo of any interior fabric tags, brand stamps or Made-in line",
                    "photo of hardware engravings on lock, zipper pull and buckle",
                    "photo of bottom and close-up of corners and strap attachments",
                    "seller-stated dimensions and lining material"
                ],
                "negative_evidence": [
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 3: lined tan interior with center divider, not unlined suede-back glove-tanned leather",
                    "photo 4-5: flap lock geometry is small rectangular push-lock, not Coach turnlock",
                    "photo 1-2: exterior back zip pocket plus add-on metal corner guards not seen on Coach classics",
                    "photo 2,6: thin buckle strap and overall tall narrow flap silhouette does not match catalog Willis\/Court\/Station\/Dinky"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone rectangular flap box-lock, buckle-adjustable strap, back-wall zipper, metal bottom corner protectors; appears plated, not heavy solid brass",
                    "leather_description": "smooth burgundy\/brown leather with sheen and surface scratches and creasing, not clearly glove-tanned full-grain",
                    "lining_description": "photo 3: tan smooth lined interior with compartments, blurry but appears lined not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even tone-matched stitching around flap and body edges, visible in photos 1-2-4",
                    "strap_construction": "thin flat adjustable shoulder strap with buckle slide, fixed side attachments",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 2,4,6: leather flap shoulder bag with brass-tone hardware in burgundy, population where misidentified Coach hides",
                    "photo 2: buckle-adjustable strap and structured flap form broadly similar to vintage shoulder bags"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: lock is not turnlock, lined interior, corner protectors and back-zip layout inconsistent with City\/Willis\/Court\/Station\/Dinky",
                    "No creed, serial, wordmark or hangtag visible to decode era or style",
                    "Condition: Good; surface scratches and sheen wear (photo 4), corner edge wear under guards (photo 1), interior marks not fully gradable due to blur (photo 3), no bottom\/interior detail so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.08,
                "vintage_probability": 0.35
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17704,
            "output_tokens": 921,
            "total_tokens": 18625,
            "estimated_cost_usd": 0.009292
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18042,
            "output_tokens": 1809,
            "total_tokens": 19851,
            "estimated_cost_usd": 0.005056
        }
    ]
}