Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.44,
    "vintage_probability": 0.59,
    "authenticity_confidence": 0.35,
    "image_quality_score": 0.885,
    "seller_misidentification_probability": 0.43,
    "confidence": 0.835,
    "recommended_max_bid": 50,
    "estimated_resale_low": 47.5,
    "estimated_resale_high": 117.5,
    "possible_models": [
        "Cashin-era frame\/doctor bag (model not identified)"
    ],
    "positive_evidence": [
        "photo 5: close-up of the central leather closure shows a brass disk clearly stamped COACH and U.S. patent text.",
        "photos 1-4: construction is a structured vintage frame handbag with substantial leather handles, leather trim, brass rings, and a distinctive textile body, consistent with early Coach\/Cashin-era designs.",
        "photo 3: four brass-colored protective feet are visible on the base.",
        "photo 5: the stamped hardware appears period-appropriate rather than a modern engraved logo pull."
    ],
    "negative_evidence": [
        "photos 1-4: the exterior is a patterned textile\/kilim-like material rather than the unlined glove-tanned leather associated with many classic Coach bags.",
        "photo 4: the bag has a synthetic-looking fabric lining, which does not establish Coach manufacture.",
        "photos 1-5: no clearly visible Coach creed patch or serial\/style number is shown.",
        "photo 1, photo 2, photo 3: body is pastel woven kilim textile, not glove-tanned cowhide",
        "photo 4: fully lined with grey patterned fabric and inset zip pocket, not unlined suede-back glove-tanned interior",
        "photo 1-4: doctor-frame with ring-handle top handles, no turnlock, no Coach silhouette match",
        "photo 1-5: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 5: magnetic snap stamped TOHPO US PAT. 4453294, not Coach hardware"
    ],
    "missing_information": [
        "A straight-on photograph of every interior wall and pocket to check for a sewn Coach creed, fabric label, or additional tag.",
        "Close-ups of the zipper pull, interior seams, hardware backs, and any markings on the frame.",
        "Photograph of the bottom, side gussets, and all corners in natural light.",
        "Confirmation of whether the central COACH hardware is original to the bag or a replacement.",
        "no maker label or interior brand tag shown - request close-up if present",
        "no exterior brand stamp shown"
    ],
    "authenticity_concerns": [
        "The visible COACH-marked closure supports Coach provenance, but a branded loose or transplanted hardware component cannot authenticate the entire handbag.",
        "The textile body and fabric lining are less typical of the classic leather Coach styles, so this may be an uncommon early textile design or a non-Coach bag incorporating genuine Coach hardware.",
        "No creed or serial consistency check is possible from the provided photos.",
        "photo 1-3: woven kilim textile body inconsistent with vintage Coach glove-tanned leather construction",
        "photo 5: hardware stamped TOHPO US PAT 4453294, not Coach hardware"
    ],
    "possible_model_reasoning": [
        "The silhouette is a structured frame or doctor-style handbag with a single top handle, but it does not closely match the listed leather classics such as Willis, Court, or Station.",
        "The unusual textile construction and COACH patent hardware are compatible with an early Coach\/Cashin-era or special-material bag, but the exact model cannot be identified from these views.",
        "No creed is visible; a pre-1975 date is plausible because early Coach bags may lack creeds, but the date remains uncertain without a label or provenance.",
        "Condition: Very Good to Good; visible handle creasing, edge\/textile wear, and general age-related surface wear are present in photos 1-5. Interior is used but appears intact; odor and hidden damage cannot be assessed.",
        "No Coach catalog match: kilim doctor-frame construction does not correspond to any classic glove-tanned style",
        "No hard identifiers: no creed, no serial, no wordmark, no hangtag in any photo",
        "Construction points away from Coach: textile body plus fabric lining plus TOHPO hardware",
        "Condition: Very Good; textile clean, leather handle with light patina (photo 1), lining intact (photo 4), feet intact (photo 3)"
    ],
    "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": "Brass-colored ring handle fittings, four visible brass-colored base feet, a central leather tab with round COACH-marked patent disk, and a small interior zipper pull. The closure disk is visible in photo 5; no turning-tab lock is visible.",
        "leather_description": "Tan leather handles and leather trim with smooth, slightly worn surfaces and visible creasing at the handle attachments. The main body is a thick pastel woven\/textile material, not visibly leather.",
        "lining_description": "Gray fabric lining with vertical textured\/striped appearance and an interior zip pocket; visible in photo 4. No creed patch is visible.",
        "strap_construction": "Single substantial top handle attached through leather tabs and metal rings; no shoulder strap is visible.",
        "stitching_description": "Visible contrast stitching is generally even along the handles, leather tabs, and perimeter trim, with some wear and loose-looking fibers at portions of the textile edge."
    },
    "ensemble_agreement": "LOW",
    "ensemble_variance": 0.0773,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.86,
                "vintage_probability": 0.88,
                "authenticity_confidence": 0.68,
                "image_quality_score": 0.92,
                "seller_misidentification_probability": 0.84,
                "estimated_era": "pre-1975 (Cashin \/ pre-creed)",
                "possible_models": [
                    "Cashin-era frame\/doctor bag (model not identified)"
                ],
                "positive_evidence": [
                    "photo 5: close-up of the central leather closure shows a brass disk clearly stamped COACH and U.S. patent text.",
                    "photos 1-4: construction is a structured vintage frame handbag with substantial leather handles, leather trim, brass rings, and a distinctive textile body, consistent with early Coach\/Cashin-era designs.",
                    "photo 3: four brass-colored protective feet are visible on the base.",
                    "photo 5: the stamped hardware appears period-appropriate rather than a modern engraved logo pull."
                ],
                "negative_evidence": [
                    "photos 1-4: the exterior is a patterned textile\/kilim-like material rather than the unlined glove-tanned leather associated with many classic Coach bags.",
                    "photo 4: the bag has a synthetic-looking fabric lining, which does not establish Coach manufacture.",
                    "photos 1-5: no clearly visible Coach creed patch or serial\/style number is shown."
                ],
                "missing_information": [
                    "A straight-on photograph of every interior wall and pocket to check for a sewn Coach creed, fabric label, or additional tag.",
                    "Close-ups of the zipper pull, interior seams, hardware backs, and any markings on the frame.",
                    "Photograph of the bottom, side gussets, and all corners in natural light.",
                    "Confirmation of whether the central COACH hardware is original to the bag or a replacement."
                ],
                "authenticity_concerns": [
                    "The visible COACH-marked closure supports Coach provenance, but a branded loose or transplanted hardware component cannot authenticate the entire handbag.",
                    "The textile body and fabric lining are less typical of the classic leather Coach styles, so this may be an uncommon early textile design or a non-Coach bag incorporating genuine Coach hardware.",
                    "No creed or serial consistency check is possible from the provided 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": true,
                    "turnlock_present": false,
                    "hangtag_present": false,
                    "hardware_description": "Brass-colored ring handle fittings, four visible brass-colored base feet, a central leather tab with round COACH-marked patent disk, and a small interior zipper pull. The closure disk is visible in photo 5; no turning-tab lock is visible.",
                    "leather_description": "Tan leather handles and leather trim with smooth, slightly worn surfaces and visible creasing at the handle attachments. The main body is a thick pastel woven\/textile material, not visibly leather.",
                    "lining_description": "Gray fabric lining with vertical textured\/striped appearance and an interior zip pocket; visible in photo 4. No creed patch is visible.",
                    "strap_construction": "Single substantial top handle attached through leather tabs and metal rings; no shoulder strap is visible.",
                    "stitching_description": "Visible contrast stitching is generally even along the handles, leather tabs, and perimeter trim, with some wear and loose-looking fibers at portions of the textile edge."
                },
                "possible_model_reasoning": [
                    "The silhouette is a structured frame or doctor-style handbag with a single top handle, but it does not closely match the listed leather classics such as Willis, Court, or Station.",
                    "The unusual textile construction and COACH patent hardware are compatible with an early Coach\/Cashin-era or special-material bag, but the exact model cannot be identified from these views.",
                    "No creed is visible; a pre-1975 date is plausible because early Coach bags may lack creeds, but the date remains uncertain without a label or provenance.",
                    "Condition: Very Good to Good; visible handle creasing, edge\/textile wear, and general age-related surface wear are present in photos 1-5. Interior is used but appears intact; odor and hidden damage cannot be assessed."
                ],
                "confidence": 0.79,
                "recommended_max_bid": 80,
                "estimated_resale_low": 75,
                "estimated_resale_high": 180
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-3: woven kilim textile body inconsistent with vintage Coach glove-tanned leather construction",
                    "photo 5: hardware stamped TOHPO US PAT 4453294, not Coach hardware"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 55,
                "estimated_resale_low": 20,
                "image_quality_score": 0.85,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "no maker label or interior brand tag shown - request close-up if present",
                    "no exterior brand stamp shown"
                ],
                "negative_evidence": [
                    "photo 1, photo 2, photo 3: body is pastel woven kilim textile, not glove-tanned cowhide",
                    "photo 4: fully lined with grey patterned fabric and inset zip pocket, not unlined suede-back glove-tanned interior",
                    "photo 1-4: doctor-frame with ring-handle top handles, no turnlock, no Coach silhouette match",
                    "photo 1-5: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 5: magnetic snap stamped TOHPO US PAT. 4453294, not Coach hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone rings at handle attachments, brass-tone base feet, brass-tone magnetic snap stamped TOHPO US PAT. 4453294",
                    "leather_description": "tan smooth leather rolled top handle and pointed closure tabs with light contrast stitching",
                    "lining_description": "grey patterned fabric lining with zip pocket on back wall",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light contrast stitching around leather closure tabs, even but not Coach-evaluated",
                    "strap_construction": "short rolled top handle looped through metal rings at frame ends, no shoulder strap",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach catalog match: kilim doctor-frame construction does not correspond to any classic glove-tanned style",
                    "No hard identifiers: no creed, no serial, no wordmark, no hangtag in any photo",
                    "Construction points away from Coach: textile body plus fabric lining plus TOHPO hardware",
                    "Condition: Very Good; textile clean, leather handle with light patina (photo 1), lining intact (photo 4), feet intact (photo 3)"
                ],
                "possible_models": [],
                "recommended_max_bid": 20,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 22295,
            "output_tokens": 1049,
            "total_tokens": 23344,
            "estimated_cost_usd": 0.011436
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 23030,
            "output_tokens": 1277,
            "total_tokens": 24307,
            "estimated_cost_usd": 0.005628
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}