Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.44,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.685,
    "seller_misidentification_probability": 0.47,
    "confidence": 0.845,
    "recommended_max_bid": 11.5,
    "estimated_resale_low": 10,
    "estimated_resale_high": 32.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: the bag appears to have a ribbed textile or synthetic body rather than Coach's typical glove-tanned leather construction",
        "photo 1: the visible metal frame and central clasp do not resemble a documented classic Coach turnlock",
        "photo 3: close view shows generic gold-tone frame hardware with no visible Coach engraving or wordmark",
        "photo 6: handle attachments and wrapped handles appear generic and provide no Coach-specific identifier",
        "photos 1-6: no visible creed patch, serial\/style number, Coach hangtag, horse-and-carriage, or Coach wordmark",
        "photo 1-4: body is black ribbed fabric\/grosgrain, not glove-tanned leather - Coach vintage signature is leather",
        "photo 1-4: top frame kisslock\/clasp closure with gold-tone bar ends, not Coach turnlock geometry",
        "photo 1,3,6: short fabric top handle with knotted attachment, not Coach leather strap with brass dogleash\/buckle construction",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 3,5: plated gold-tone hardware with discoloration, not solid brass vintage Coach hardware"
    ],
    "missing_information": [
        "photo 1-6: interior, lining, and any interior label or creed patch are not shown",
        "photo 1-6: bottom, side, and full hardware details are incomplete",
        "photo 1-6: no close-up of the clasp or any possible maker mark",
        "seller-stated '50s' date is unverified by the photos",
        "photo of interior emptied and interior labels\/tags not shown (photo 1-6: no interior view)",
        "creed patch \/ maker mark close-up not shown",
        "bottom \/ corners \/ side and hardware stamp close-ups not shown",
        "dimensions and material confirmation not provided"
    ],
    "authenticity_concerns": [
        "The textile frame-bag construction and generic hardware are inconsistent with the usual leather Coach handbag population.",
        "No Coach identifier is visible; silhouette alone is insufficient to associate this bag with Coach."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match: the frame construction, textile exterior, and central clasp do not correspond clearly to the listed Coach leather models.",
        "Seller's '50s' claim is not independently verifiable from the photos; the bag may be a vintage-style or later textile frame handbag.",
        "Condition appears Good: visible dirt\/discoloration, surface wear, and hardware discoloration in photos 1, 4, and 5; interior and functional condition are unknown.",
        "No Coach identifier visible in any photo; fabric frame-bag silhouette with kisslock frame does not match any Coach catalog style in 4.1-4.2",
        "Construction - fabric body, plated frame hardware, fabric handle - is inconsistent with 1970s-1990s unlined glove-tanned + solid brass Coach classics per 3.1-3.2",
        "Seller text claims 1950s but provides no Coach claim or serial; text alone is weak evidence per procedure",
        "Condition: Good to Very Good with wear; photo 5 shows dirt\/light marks and edge soiling, photo 1,3 shows hardware discoloration; interior unknown so grade 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 metal frame bars, end fittings, and a small central clasp; discoloration\/tarnish is visible. Hardware appears generic and is not visibly Coach-stamped.",
        "leather_description": "not_visible; the exterior appears to be black ribbed textile or synthetic material rather than leather.",
        "lining_description": "not_visible",
        "strap_construction": "Short black wrapped textile handles attached with small gold-tone rings and looped fittings; visible handle wear and distortion.",
        "stitching_description": "Visible perimeter and handle stitching appears generally even, but details are limited; no Coach-specific construction feature is visible."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0412,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.92,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: the bag appears to have a ribbed textile or synthetic body rather than Coach's typical glove-tanned leather construction",
                    "photo 1: the visible metal frame and central clasp do not resemble a documented classic Coach turnlock",
                    "photo 3: close view shows generic gold-tone frame hardware with no visible Coach engraving or wordmark",
                    "photo 6: handle attachments and wrapped handles appear generic and provide no Coach-specific identifier",
                    "photos 1-6: no visible creed patch, serial\/style number, Coach hangtag, horse-and-carriage, or Coach wordmark"
                ],
                "missing_information": [
                    "photo 1-6: interior, lining, and any interior label or creed patch are not shown",
                    "photo 1-6: bottom, side, and full hardware details are incomplete",
                    "photo 1-6: no close-up of the clasp or any possible maker mark",
                    "seller-stated '50s' date is unverified by the photos"
                ],
                "authenticity_concerns": [
                    "The textile frame-bag construction and generic hardware are inconsistent with the usual leather Coach handbag population.",
                    "No Coach identifier is visible; silhouette alone is insufficient to associate this bag with Coach."
                ],
                "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 metal frame bars, end fittings, and a small central clasp; discoloration\/tarnish is visible. Hardware appears generic and is not visibly Coach-stamped.",
                    "leather_description": "not_visible; the exterior appears to be black ribbed textile or synthetic material rather than leather.",
                    "lining_description": "not_visible",
                    "strap_construction": "Short black wrapped textile handles attached with small gold-tone rings and looped fittings; visible handle wear and distortion.",
                    "stitching_description": "Visible perimeter and handle stitching appears generally even, but details are limited; no Coach-specific construction feature is visible."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match: the frame construction, textile exterior, and central clasp do not correspond clearly to the listed Coach leather models.",
                    "Seller's '50s' claim is not independently verifiable from the photos; the bag may be a vintage-style or later textile frame handbag.",
                    "Condition appears Good: visible dirt\/discoloration, surface wear, and hardware discoloration in photos 1, 4, and 5; interior and functional condition are unknown."
                ],
                "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": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "unknown",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior emptied and interior labels\/tags not shown (photo 1-6: no interior view)",
                    "creed patch \/ maker mark close-up not shown",
                    "bottom \/ corners \/ side and hardware stamp close-ups not shown",
                    "dimensions and material confirmation not provided"
                ],
                "negative_evidence": [
                    "photo 1-4: body is black ribbed fabric\/grosgrain, not glove-tanned leather - Coach vintage signature is leather",
                    "photo 1-4: top frame kisslock\/clasp closure with gold-tone bar ends, not Coach turnlock geometry",
                    "photo 1,3,6: short fabric top handle with knotted attachment, not Coach leather strap with brass dogleash\/buckle construction",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 3,5: plated gold-tone hardware with discoloration, not solid brass vintage Coach hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone frame bar with end caps and round clasp; discoloration\/tarnish visible in photo 1,3; plated appearance, not solid brass",
                    "leather_description": "not leather - black fine-ribbed woven fabric\/grosgrain visible in photo 1,3,5",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "edge stitching visible in photo 5 along side, otherwise not clearly visible",
                    "strap_construction": "single short top handle in same black fabric with wrapped\/knotted ends on metal loops (photo 3,6)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any photo; fabric frame-bag silhouette with kisslock frame does not match any Coach catalog style in 4.1-4.2",
                    "Construction - fabric body, plated frame hardware, fabric handle - is inconsistent with 1970s-1990s unlined glove-tanned + solid brass Coach classics per 3.1-3.2",
                    "Seller text claims 1950s but provides no Coach claim or serial; text alone is weak evidence per procedure",
                    "Condition: Good to Very Good with wear; photo 5 shows dirt\/light marks and edge soiling, photo 1,3 shows hardware discoloration; interior unknown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.7
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
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            "output_tokens": 751,
            "total_tokens": 18459,
            "estimated_cost_usd": 0.008886
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18045,
            "output_tokens": 1485,
            "total_tokens": 19530,
            "estimated_cost_usd": 0.004797
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}