Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.02,
    "vintage_probability": 0.55,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.775,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.88,
    "recommended_max_bid": 11,
    "estimated_resale_low": 9,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: bag is made of gathered black textile fabric rather than Coach's characteristic leather or documented signature canvas.",
        "photo 1: visible metal frame clasp and fabric construction do not resemble a vintage Coach turnlock bag.",
        "photo 2: interior is satin-like fabric with gathered sewn edges; no Coach creed, wordmark, or identifiable Coach label is visible.",
        "photo 2: matching small coin purse is attached by a cord, consistent with a formal evening-bag set rather than a Coach handbag.",
        "photo 4: exterior shows textile body and narrow fabric handles, with no visible Coach branding.",
        "photo 5: bottom and exterior construction are fabric-based, with no visible leather trim or Coach identifiers.",
        "photo 1,4,5: body is black rayon\/faille fabric with gathered\/pleated design, not glove-tanned leather",
        "photo 1-3: kisslock frame clasp closures on both bag and coin purse, no turnlock present",
        "photo 2: black satin gathered lining, not unlined suede",
        "photo 1-5: fabric top handles, no brass dogleash, buckle, or solid brass hardware",
        "photo 1-5: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible"
    ],
    "missing_information": [
        "photo 2: no close-up of any interior label or sewn-in maker tag.",
        "photo 1: no close-up of the clasp or any maker mark on its hardware.",
        "Seller-stated 1940s date is not independently verifiable from the photos.",
        "Exact dimensions and materials should be confirmed.",
        "No creed patch visible - interior fully shown with no Coach creed (photo 2)",
        "No Coach wordmark, hangtag, or branded hardware visible in any photo",
        "No bottom feet, zipper brand, or country label to check"
    ],
    "authenticity_concerns": [
        "The visible materials and construction are inconsistent with the usual vintage Coach leather handbag population.",
        "No Coach identifier is visible; this appears to be an unbranded formal textile handbag set rather than a Coach product.",
        "photo 1-5: non-leather fabric construction inconsistent with any vintage Coach glove-tanned era",
        "photo 2-3: kisslock frame closures, not Coach turnlock geometry"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the bag is a fabric formal frame bag with a coordinated coin purse, not a recognizable Coach leather silhouette.",
        "The seller's 1940s\/Art Deco description is plausible as a style description but cannot be confirmed from these photos; estimated era remains unknown.",
        "Condition: Good to Very Good based on visible intact fabric and hardware, with apparent creasing, surface wear, and possible discoloration; interior and structural details are only partially shown.",
        "No Coach identifier visible in 5 photos despite clear interior views (photo 2,3) where creed would sit",
        "Fabric evening bag with kisslock frames matches 1940s formal set described, not any Coach catalog silhouette in 4.1\/4.2",
        "Coach pre-1975 Cashin era used leather, kisslock frames but with leather bodies and Cashin labels - fabric faille set is inconsistent",
        "Condition: Good to Very Good; fabric appears intact with light wear, satin lining wrinkled but no tears shown"
    ],
    "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": "Small metal frame clasp and clasp hardware are visible; no Coach engraving is legible. The closure appears to be a formal frame clasp, not a Coach turnlock.",
        "leather_description": "No leather body or leather trim is visibly present; exterior appears to be black woven or faille-like textile.",
        "lining_description": "Satin-like black lining with gathered construction is visible; the coin purse has a light-colored patterned lining.",
        "strap_construction": "Narrow fabric top handles are visible, with an attached cord connecting the matching coin purse.",
        "stitching_description": "Visible textile seams and gathered stitching appear generally regular; close-up stress-point stitching is not available."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0037,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.65,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.9,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: bag is made of gathered black textile fabric rather than Coach's characteristic leather or documented signature canvas.",
                    "photo 1: visible metal frame clasp and fabric construction do not resemble a vintage Coach turnlock bag.",
                    "photo 2: interior is satin-like fabric with gathered sewn edges; no Coach creed, wordmark, or identifiable Coach label is visible.",
                    "photo 2: matching small coin purse is attached by a cord, consistent with a formal evening-bag set rather than a Coach handbag.",
                    "photo 4: exterior shows textile body and narrow fabric handles, with no visible Coach branding.",
                    "photo 5: bottom and exterior construction are fabric-based, with no visible leather trim or Coach identifiers."
                ],
                "missing_information": [
                    "photo 2: no close-up of any interior label or sewn-in maker tag.",
                    "photo 1: no close-up of the clasp or any maker mark on its hardware.",
                    "Seller-stated 1940s date is not independently verifiable from the photos.",
                    "Exact dimensions and materials should be confirmed."
                ],
                "authenticity_concerns": [
                    "The visible materials and construction are inconsistent with the usual vintage Coach leather handbag population.",
                    "No Coach identifier is visible; this appears to be an unbranded formal textile handbag set rather than a Coach product."
                ],
                "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": "Small metal frame clasp and clasp hardware are visible; no Coach engraving is legible. The closure appears to be a formal frame clasp, not a Coach turnlock.",
                    "leather_description": "No leather body or leather trim is visibly present; exterior appears to be black woven or faille-like textile.",
                    "lining_description": "Satin-like black lining with gathered construction is visible; the coin purse has a light-colored patterned lining.",
                    "strap_construction": "Narrow fabric top handles are visible, with an attached cord connecting the matching coin purse.",
                    "stitching_description": "Visible textile seams and gathered stitching appear generally regular; close-up stress-point stitching is not available."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the bag is a fabric formal frame bag with a coordinated coin purse, not a recognizable Coach leather silhouette.",
                    "The seller's 1940s\/Art Deco description is plausible as a style description but cannot be confirmed from these photos; estimated era remains unknown.",
                    "Condition: Good to Very Good based on visible intact fabric and hardware, with apparent creasing, surface wear, and possible discoloration; interior and structural details are only partially shown."
                ],
                "confidence": 0.88,
                "recommended_max_bid": 12,
                "estimated_resale_low": 8,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-5: non-leather fabric construction inconsistent with any vintage Coach glove-tanned era",
                    "photo 2-3: kisslock frame closures, not Coach turnlock geometry"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "No creed patch visible - interior fully shown with no Coach creed (photo 2)",
                    "No Coach wordmark, hangtag, or branded hardware visible in any photo",
                    "No bottom feet, zipper brand, or country label to check"
                ],
                "negative_evidence": [
                    "photo 1,4,5: body is black rayon\/faille fabric with gathered\/pleated design, not glove-tanned leather",
                    "photo 1-3: kisslock frame clasp closures on both bag and coin purse, no turnlock present",
                    "photo 2: black satin gathered lining, not unlined suede",
                    "photo 1-5: fabric top handles, no brass dogleash, buckle, or solid brass hardware",
                    "photo 1-5: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "kisslock frame clasps in dull brass-tone on main bag (photo 2) and coin purse (photo 1,3); no turnlock, no branded pulls",
                    "leather_description": "no leather visible; softly gathered black rayon or faille fabric body (photo 1,4,5)",
                    "lining_description": "black satin lining in main bag (photo 2), off-white satin in coin purse interior (photo 3)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible - seams bound in fabric, no leather stitching to assess",
                    "strap_construction": "two fixed fabric top handles sewn to frame (photo 4)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in 5 photos despite clear interior views (photo 2,3) where creed would sit",
                    "Fabric evening bag with kisslock frames matches 1940s formal set described, not any Coach catalog silhouette in 4.1\/4.2",
                    "Coach pre-1975 Cashin era used leather, kisslock frames but with leather bodies and Cashin labels - fabric faille set is inconsistent",
                    "Condition: Good to Very Good; fabric appears intact with light wear, satin lining wrinkled but no tears shown"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.45
            }
        }
    ],
    "_usage": [
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            "output_tokens": 838,
            "total_tokens": 18483,
            "estimated_cost_usd": 0.009069
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18153,
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}