Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.025,
    "vintage_probability": 0.375,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.76,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.875,
    "recommended_max_bid": 22.5,
    "estimated_resale_low": 27.5,
    "estimated_resale_high": 85,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a structured leather top-handle handbag with a flap and central turning clasp.",
        "photo 2: The bag has substantial stitched leather construction and metal hardware."
    ],
    "negative_evidence": [
        "photo 1: The prominent ostrich-style quill pattern is unlike Coach's typical vintage glove-tanned leather and classic catalog silhouettes.",
        "photo 1: The clasp is a rectangular bar-and-plate mechanism, not the characteristic vintage Coach oval turnlock.",
        "photo 6: No Coach wordmark, horse-and-carriage, or recognizable Coach hangtag is visible.",
        "photo 7: No rectangular Coach creed patch is visible on the interior wall.",
        "photo 8: The interior appears lined and includes an oval brand plaque, but the plaque is not legible as COACH.",
        "Listing title: Seller identifies the item as Visconte genuine ostrich leather, not Coach; this is weak seller-provided evidence but consistent with the visible ostrich construction.",
        "photo 1, photo 3, photo 4: taupe ostrich-quill embossed leather Kelly-style top-handle satchel, not Coach glove-tanned cowhide",
        "photo 2: rectangular cut-out clasp with leather-wrapped bar and bright gold plates, not Coach turnlock oval plate and slim tab",
        "photo 5, photo 6: light suede-like fully lined interior with zip pocket and small oval metal maker plate, no rectangular leather Coach creed patch visible",
        "photo 1-6: no COACH wordmark, no horse-and-carriage, no leather hangtag, no creed text visible",
        "photo 6: construction and brand presentation matches seller title Visconte ostrich bag, not Coach"
    ],
    "missing_information": [
        "A straight-on, close-up photograph of the interior oval plaque or any interior brand label.",
        "A clear photograph of the bottom, corners, and all hardware markings.",
        "A close-up of the zipper pull and any country-of-origin or care tags.",
        "Seller-stated dimensions, measurements, and confirmation of whether the leather is genuine ostrich rather than embossed leather.",
        "close-up of interior oval maker plate to confirm Visconte branding (photo 6 is blurry)",
        "back, bottom-corner and handle-anchor close-ups for condition",
        "dimensions and exterior back view"
    ],
    "authenticity_concerns": [
        "The visible ostrich leather, lined construction, and non-Coach clasp design are inconsistent with common vintage Coach classic construction.",
        "No Coach identifier is visible in the provided photos; the interior plaque is too blurred to evaluate.",
        "photo 1, photo 2: exotic ostrich-quill leather and boxy Kelly frame inconsistent with vintage Coach glove-tanned classics",
        "photo 2, photo 6: rectangular gold-tone bar clasp unlike Coach Cashin turnlock geometry",
        "photo 6: oval interior maker plate inconsistent with Coach creed patch system"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match: the ostrich exterior, rectangular clasp, lined interior, and Kelly-style satchel profile do not correspond closely to the listed vintage Coach classics.",
        "Condition appears Good: extensive surface scratching, creasing, edge wear, and darkened\/worn leather are visible in photos 1, 3, 4, and 8; hardware remains present, but interior and structural condition are only partly shown.",
        "No Coach model fits: silhouette is a structured ostrich Kelly-type top-handle with bar clasp, not City Bag, Willis, Court, Station, Dinky or other catalog style",
        "No Coach identifiers observed in any photo to decode for era or style number",
        "Condition: Good to Very Good; handle shows edge wear and darkening (photo 1, photo 4), leather shows surface soiling\/scuffs (photo 2), interior shows light marks and ink dot (photo 5, photo 6), bottom 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": "Gold-tone rectangular clasp with a central vertical leather-covered bar; no Coach engraving is visible. Additional gold-tone handle fittings are visible.",
        "leather_description": "Brown-gray leather with numerous raised oval quill follicles consistent with ostrich leather or ostrich-embossed leather; visibly scratched and heavily creased.",
        "lining_description": "Visible lined interior in light beige\/taupe material with a zippered pocket and an oval plaque; plaque text is not legible.",
        "strap_construction": "Single fixed top handle with stitched leather construction and gold-tone side fittings; no detachable shoulder strap is visible.",
        "stitching_description": "Visible perimeter stitching is generally straight and even, with some wear and darkening along edges."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0011,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.35,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a structured leather top-handle handbag with a flap and central turning clasp.",
                    "photo 2: The bag has substantial stitched leather construction and metal hardware."
                ],
                "negative_evidence": [
                    "photo 1: The prominent ostrich-style quill pattern is unlike Coach's typical vintage glove-tanned leather and classic catalog silhouettes.",
                    "photo 1: The clasp is a rectangular bar-and-plate mechanism, not the characteristic vintage Coach oval turnlock.",
                    "photo 6: No Coach wordmark, horse-and-carriage, or recognizable Coach hangtag is visible.",
                    "photo 7: No rectangular Coach creed patch is visible on the interior wall.",
                    "photo 8: The interior appears lined and includes an oval brand plaque, but the plaque is not legible as COACH.",
                    "Listing title: Seller identifies the item as Visconte genuine ostrich leather, not Coach; this is weak seller-provided evidence but consistent with the visible ostrich construction."
                ],
                "missing_information": [
                    "A straight-on, close-up photograph of the interior oval plaque or any interior brand label.",
                    "A clear photograph of the bottom, corners, and all hardware markings.",
                    "A close-up of the zipper pull and any country-of-origin or care tags.",
                    "Seller-stated dimensions, measurements, and confirmation of whether the leather is genuine ostrich rather than embossed leather."
                ],
                "authenticity_concerns": [
                    "The visible ostrich leather, lined construction, and non-Coach clasp design are inconsistent with common vintage Coach classic construction.",
                    "No Coach identifier is visible in the provided photos; the interior plaque is too blurred to evaluate."
                ],
                "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": "Gold-tone rectangular clasp with a central vertical leather-covered bar; no Coach engraving is visible. Additional gold-tone handle fittings are visible.",
                    "leather_description": "Brown-gray leather with numerous raised oval quill follicles consistent with ostrich leather or ostrich-embossed leather; visibly scratched and heavily creased.",
                    "lining_description": "Visible lined interior in light beige\/taupe material with a zippered pocket and an oval plaque; plaque text is not legible.",
                    "strap_construction": "Single fixed top handle with stitched leather construction and gold-tone side fittings; no detachable shoulder strap is visible.",
                    "stitching_description": "Visible perimeter stitching is generally straight and even, with some wear and darkening along edges."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match: the ostrich exterior, rectangular clasp, lined interior, and Kelly-style satchel profile do not correspond closely to the listed vintage Coach classics.",
                    "Condition appears Good: extensive surface scratching, creasing, edge wear, and darkened\/worn leather are visible in photos 1, 3, 4, and 8; hardware remains present, but interior and structural condition are only partly shown."
                ],
                "confidence": 0.87,
                "recommended_max_bid": 25,
                "estimated_resale_low": 30,
                "estimated_resale_high": 100
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1, photo 2: exotic ostrich-quill leather and boxy Kelly frame inconsistent with vintage Coach glove-tanned classics",
                    "photo 2, photo 6: rectangular gold-tone bar clasp unlike Coach Cashin turnlock geometry",
                    "photo 6: oval interior maker plate inconsistent with Coach creed patch system"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 70,
                "estimated_resale_low": 25,
                "image_quality_score": 0.68,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "close-up of interior oval maker plate to confirm Visconte branding (photo 6 is blurry)",
                    "back, bottom-corner and handle-anchor close-ups for condition",
                    "dimensions and exterior back view"
                ],
                "negative_evidence": [
                    "photo 1, photo 3, photo 4: taupe ostrich-quill embossed leather Kelly-style top-handle satchel, not Coach glove-tanned cowhide",
                    "photo 2: rectangular cut-out clasp with leather-wrapped bar and bright gold plates, not Coach turnlock oval plate and slim tab",
                    "photo 5, photo 6: light suede-like fully lined interior with zip pocket and small oval metal maker plate, no rectangular leather Coach creed patch visible",
                    "photo 1-6: no COACH wordmark, no horse-and-carriage, no leather hangtag, no creed text visible",
                    "photo 6: construction and brand presentation matches seller title Visconte ostrich bag, not Coach"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone rectangular clasp with leather-wrapped cross-bar on flap (photo 2); gold-tone handle anchors (photo 1, photo 4); interior zipper with gold-tone pull (photo 6)",
                    "leather_description": "taupe\/grey-brown ostrich-quill embossed leather with raised quill bumps overall (photo 1-4); smooth dark brown leather flap underside and handle (photo 4, photo 6)",
                    "lining_description": "light beige\/cream suede-like lining with interior zip pocket (photo 5, photo 6)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched straight perimeter stitching on flap and body (photo 1, photo 2)",
                    "strap_construction": "single short fixed top handle in matching ostrich-embossed leather attached with gold-tone hardware (photo 1, photo 4)",
                    "turnlock_present": true
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: silhouette is a structured ostrich Kelly-type top-handle with bar clasp, not City Bag, Willis, Court, Station, Dinky or other catalog style",
                    "No Coach identifiers observed in any photo to decode for era or style number",
                    "Condition: Good to Very Good; handle shows edge wear and darkening (photo 1, photo 4), leather shows surface soiling\/scuffs (photo 2), interior shows light marks and ink dot (photo 5, photo 6), bottom not fully shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 20,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.4
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28778,
            "output_tokens": 876,
            "total_tokens": 29654,
            "estimated_cost_usd": 0.013614
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30093,
            "output_tokens": 1486,
            "total_tokens": 31579,
            "estimated_cost_usd": 0.007207
        }
    ]
}