Vintage Coach Hunter

{
    "is_handbag_probability": 0.665,
    "coach_probability": 0.02,
    "vintage_probability": 0.02,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.685,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.88,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 22.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a small backpack-style purse with a front zip pocket and shoulder straps.",
        "photo 1: The black-and-white checkered textile and bee applique are visible."
    ],
    "negative_evidence": [
        "photo 1: No COACH wordmark, horse-and-carriage emblem, creed patch, or leather hangtag is visible.",
        "photo 1: The bag uses an all-over checkered textile design rather than Coach signature canvas or a vintage glove-tanned leather construction.",
        "photo 3: The back shows textile construction and backpack straps, with no visible Coach branding.",
        "photo 1: The visible zipper hardware is generic-looking and there is no vintage Coach turnlock.",
        "photo 1, photo 3: black-white gingham\/check woven fabric body, not glove-tanned leather",
        "photo 1, photo 2, photo 3: no COACH wordmark, no horse-and-carriage, no creed patch, no leather hangtag visible",
        "photo 1: novelty rhinestone bee applique accent, inconsistent with vintage Coach classics",
        "photo 1, photo 3: mini backpack\/purse silhouette with front zip pocket, not a catalog Coach classic silhouette",
        "photo 1, photo 3: thin gold-tone zip hardware and fabric loop, not solid brass turnlock\/dogleash Coach hardware"
    ],
    "missing_information": [
        "photo 1-3: Interior, lining, and any sewn-in brand or care label are not shown.",
        "photo 1-3: No close-up of zipper pulls, strap attachments, or interior tags.",
        "photo 1-3: Dimensions and material composition are not provided.",
        "interior views including any leather creed patch or fabric brand tags not shown",
        "bottom, side and strap views not shown",
        "hardware brand stamps and zipper-pull markings not shown",
        "material and lining composition not shown"
    ],
    "authenticity_concerns": [
        "photo 1-3: The visible construction and decorative bee\/check pattern are inconsistent with the cataloged vintage Coach handbag population.",
        "photo 1-3: No Coach identifier is visible; this appears to be a generic or other-brand textile backpack rather than a Coach product."
    ],
    "possible_model_reasoning": [
        "The backpack silhouette, checkered textile, and bee applique do not correspond to a recognizable vintage Coach model.",
        "Condition: approximately Very Good based on the visible exterior; no obvious major wear is shown, but the interior and bottom are not photographed.",
        "Not a Coach model match: fabric mini-backpack with bee applique does not correspond to any Classic glove-tanned style (Willis, Court, Station, Dinky, Daypack 9791, Mini Daypack 9960) in material, hardware or closure",
        "Era reasoning: synthetic check fabric, novelty bee charm and mini-backpack-purse format indicate modern fast-fashion, non-Coach manufacture",
        "Condition: exterior looks clean and intact in photo 1-3 but grading capped by missing interior, bottom, and strap views; exterior only suggests Good to Very Good"
    ],
    "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": "photo 1: Small gold-tone zipper hardware and strap rings are visible; no turnlock or Coach engraving is visible.",
        "leather_description": "photo 1-3: No leather body is visible; the exterior appears to be woven or coated checkered textile with black trim.",
        "lining_description": "not_visible",
        "strap_construction": "photo 3: Backpack-style shoulder straps are visible on the rear; detailed attachment construction is not shown.",
        "stitching_description": "photo 1-3: Visible perimeter and pocket seams appear machine-stitched; detailed stitch quality is not assessable."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0168,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a small backpack-style purse with a front zip pocket and shoulder straps.",
                    "photo 1: The black-and-white checkered textile and bee applique are visible."
                ],
                "negative_evidence": [
                    "photo 1: No COACH wordmark, horse-and-carriage emblem, creed patch, or leather hangtag is visible.",
                    "photo 1: The bag uses an all-over checkered textile design rather than Coach signature canvas or a vintage glove-tanned leather construction.",
                    "photo 3: The back shows textile construction and backpack straps, with no visible Coach branding.",
                    "photo 1: The visible zipper hardware is generic-looking and there is no vintage Coach turnlock."
                ],
                "missing_information": [
                    "photo 1-3: Interior, lining, and any sewn-in brand or care label are not shown.",
                    "photo 1-3: No close-up of zipper pulls, strap attachments, or interior tags.",
                    "photo 1-3: Dimensions and material composition are not provided."
                ],
                "authenticity_concerns": [
                    "photo 1-3: The visible construction and decorative bee\/check pattern are inconsistent with the cataloged vintage Coach handbag population.",
                    "photo 1-3: No Coach identifier is visible; this appears to be a generic or other-brand textile backpack 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": "photo 1: Small gold-tone zipper hardware and strap rings are visible; no turnlock or Coach engraving is visible.",
                    "leather_description": "photo 1-3: No leather body is visible; the exterior appears to be woven or coated checkered textile with black trim.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 3: Backpack-style shoulder straps are visible on the rear; detailed attachment construction is not shown.",
                    "stitching_description": "photo 1-3: Visible perimeter and pocket seams appear machine-stitched; detailed stitch quality is not assessable."
                },
                "possible_model_reasoning": [
                    "The backpack silhouette, checkered textile, and bee applique do not correspond to a recognizable vintage Coach model.",
                    "Condition: approximately Very Good based on the visible exterior; no obvious major wear is shown, but the interior and bottom are not photographed."
                ],
                "confidence": 0.88,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.35,
                "missing_information": [
                    "interior views including any leather creed patch or fabric brand tags not shown",
                    "bottom, side and strap views not shown",
                    "hardware brand stamps and zipper-pull markings not shown",
                    "material and lining composition not shown"
                ],
                "negative_evidence": [
                    "photo 1, photo 3: black-white gingham\/check woven fabric body, not glove-tanned leather",
                    "photo 1, photo 2, photo 3: no COACH wordmark, no horse-and-carriage, no creed patch, no leather hangtag visible",
                    "photo 1: novelty rhinestone bee applique accent, inconsistent with vintage Coach classics",
                    "photo 1, photo 3: mini backpack\/purse silhouette with front zip pocket, not a catalog Coach classic silhouette",
                    "photo 1, photo 3: thin gold-tone zip hardware and fabric loop, not solid brass turnlock\/dogleash Coach hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone zipper pulls on front pocket (photo 1) and dark metal top loop\/ring (photo 1, photo 3); no turnlock, no brass dogleash clips, no stamps legible",
                    "leather_description": "no leather visible; black and white checkered woven textile, likely synthetic; not glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "edge stitching around front pocket and body edges visible in photo 1, generic; no detail to assess tightness or thread match",
                    "strap_construction": "not_visible; only small fabric top loop visible (photo 3); backpack straps not shown",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Not a Coach model match: fabric mini-backpack with bee applique does not correspond to any Classic glove-tanned style (Willis, Court, Station, Dinky, Daypack 9791, Mini Daypack 9960) in material, hardware or closure",
                    "Era reasoning: synthetic check fabric, novelty bee charm and mini-backpack-purse format indicate modern fast-fashion, non-Coach manufacture",
                    "Condition: exterior looks clean and intact in photo 1-3 but grading capped by missing interior, bottom, and strap views; exterior only suggests Good to Very Good"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 22736,
            "output_tokens": 837,
            "total_tokens": 23573,
            "estimated_cost_usd": 0.011103
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 23956,
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            "estimated_cost_usd": 0.005753
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}