Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.18,
    "vintage_probability": 0.29,
    "authenticity_confidence": 0.145,
    "image_quality_score": 0.685,
    "seller_misidentification_probability": 0.185,
    "confidence": 0.765,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 14,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: genuine-looking leather shoulder bag with substantial gold-tone hardware and an adjustable strap.",
        "photo 3: strap attachment and folded leather construction are somewhat compatible with Coach-era leather goods.",
        "photo 4: leather has a natural, softly pebbled appearance rather than an obvious synthetic or coated-canvas finish.",
        "photo 1,6: handbag form with adjustable crossbody strap"
    ],
    "negative_evidence": [
        "photo 1: no legible COACH wordmark, horse-and-carriage mark, creed patch, or recognizable Coach closure is visible.",
        "photo 2: circular gold-tone medallion appears decorative and is not visibly marked COACH.",
        "photos 1 and 5: silhouette and decorative strap construction are generic enough to fit many contemporary leather brands.",
        "photo 6: hardware appears gold-tone and relatively decorative; no classic vintage Coach turnlock or other distinctive Coach identifier is shown.",
        "photo 1,5,6: no turnlock, no flap, no Coach silhouette - open hobo with decorative front ring tie",
        "photo 1,3,6: scalloped cut-out strap anchors with snap rivets not used on vintage Coach classics",
        "photo 1,2,4: thin coated faux-like grain with sheen, not glove-tanned cowhide with suede back",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 1,2,3: bright thin gold-tone rings, buckle and disc charm, not solid brass vintage hardware"
    ],
    "missing_information": [
        "Interior emptied and photographed, especially the back wall, slip pocket, and any creed patch.",
        "Close-up of any interior fabric or leather label and all stamped markings.",
        "Close-ups of the zipper, hardware backs, and circular medallion to check for branding.",
        "Seller-stated dimensions and a photograph of the bottom, corners, and strap hardware from both sides.",
        "photo 1-6: interior views not shown, lining and creed patch unknown",
        "photo 1-6: bottom and corners not clearly shown",
        "photo 2: round metal charm illegible - close-up of any stamp needed",
        "photo 1-6: no hardware brand stamps visible - zipper\/pull\/buckle marks needed"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible, so the bag cannot be distinguished confidently from a generic leather or lookalike-brand bag.",
        "The decorative hardware and unusual cutout strap do not establish Coach manufacture and may represent a non-Coach design."
    ],
    "possible_model_reasoning": [
        "No Coach model can be identified reliably from the exterior alone; the shape is a generic soft shoulder or hobo-style bag rather than a clearly identifiable classic Coach silhouette.",
        "The bag could be a 2000s or later leather shoulder bag based on its soft construction and decorative hardware, but there is no visible date code or brand evidence.",
        "Condition: approximately Very Good from the visible exterior; leather shows creasing and possible light surface wear, while the interior, odor, corners, and strap fold points are not fully assessable.",
        "No Coach model fits: no turnlock, no creed, no brass, no glove-tanned unlined construction, silhouette and scalloped strap details match modern fast-fashion hobo, not any catalog style in section 4",
        "Era reasoning: materials, hardware tone and construction indicate modern (2000s+) non-Coach manufacture",
        "Condition: seller states Excellent; photos show intact surface with light creasing but no interior, bottom or close wear views so grade cannot be verified"
    ],
    "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": "Gold-tone rings, buckles, rivets, snaps, and a circular metal medallion are visible; no legible brand engraving is visible.",
        "leather_description": "Dark blue or blue-black leather with a softly pebbled\/natural grain and visible creasing; appears leather, but exact type is not determinable from photos.",
        "lining_description": "not_visible",
        "strap_construction": "Adjustable leather shoulder strap with decorative cutout sections, stitched\/folded attachments, buckles, and ring hardware.",
        "stitching_description": "Visible perimeter stitching appears generally even; interior stitching and stress-point construction are not shown."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0226,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.34,
                "vintage_probability": 0.55,
                "authenticity_confidence": 0.27,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.34,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: genuine-looking leather shoulder bag with substantial gold-tone hardware and an adjustable strap.",
                    "photo 3: strap attachment and folded leather construction are somewhat compatible with Coach-era leather goods.",
                    "photo 4: leather has a natural, softly pebbled appearance rather than an obvious synthetic or coated-canvas finish."
                ],
                "negative_evidence": [
                    "photo 1: no legible COACH wordmark, horse-and-carriage mark, creed patch, or recognizable Coach closure is visible.",
                    "photo 2: circular gold-tone medallion appears decorative and is not visibly marked COACH.",
                    "photos 1 and 5: silhouette and decorative strap construction are generic enough to fit many contemporary leather brands.",
                    "photo 6: hardware appears gold-tone and relatively decorative; no classic vintage Coach turnlock or other distinctive Coach identifier is shown."
                ],
                "missing_information": [
                    "Interior emptied and photographed, especially the back wall, slip pocket, and any creed patch.",
                    "Close-up of any interior fabric or leather label and all stamped markings.",
                    "Close-ups of the zipper, hardware backs, and circular medallion to check for branding.",
                    "Seller-stated dimensions and a photograph of the bottom, corners, and strap hardware from both sides."
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible, so the bag cannot be distinguished confidently from a generic leather or lookalike-brand bag.",
                    "The decorative hardware and unusual cutout strap do not establish Coach manufacture and may represent a non-Coach design."
                ],
                "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": "Gold-tone rings, buckles, rivets, snaps, and a circular metal medallion are visible; no legible brand engraving is visible.",
                    "leather_description": "Dark blue or blue-black leather with a softly pebbled\/natural grain and visible creasing; appears leather, but exact type is not determinable from photos.",
                    "lining_description": "not_visible",
                    "strap_construction": "Adjustable leather shoulder strap with decorative cutout sections, stitched\/folded attachments, buckles, and ring hardware.",
                    "stitching_description": "Visible perimeter stitching appears generally even; interior stitching and stress-point construction are not shown."
                },
                "possible_model_reasoning": [
                    "No Coach model can be identified reliably from the exterior alone; the shape is a generic soft shoulder or hobo-style bag rather than a clearly identifiable classic Coach silhouette.",
                    "The bag could be a 2000s or later leather shoulder bag based on its soft construction and decorative hardware, but there is no visible date code or brand evidence.",
                    "Condition: approximately Very Good from the visible exterior; leather shows creasing and possible light surface wear, while the interior, odor, corners, and strap fold points are not fully assessable."
                ],
                "confidence": 0.68,
                "recommended_max_bid": 15,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 8,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo 1-6: interior views not shown, lining and creed patch unknown",
                    "photo 1-6: bottom and corners not clearly shown",
                    "photo 2: round metal charm illegible - close-up of any stamp needed",
                    "photo 1-6: no hardware brand stamps visible - zipper\/pull\/buckle marks needed"
                ],
                "negative_evidence": [
                    "photo 1,5,6: no turnlock, no flap, no Coach silhouette - open hobo with decorative front ring tie",
                    "photo 1,3,6: scalloped cut-out strap anchors with snap rivets not used on vintage Coach classics",
                    "photo 1,2,4: thin coated faux-like grain with sheen, not glove-tanned cowhide with suede back",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 1,2,3: bright thin gold-tone rings, buckle and disc charm, not solid brass vintage hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone thin rings, adjustable buckle, snap rivets and small round disc charm; lightweight plated appearance, no COACH stamping visible",
                    "leather_description": "dark slate-blue\/gray pebbled material with synthetic sheen and drape, looks like faux\/PU leather, not thick glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "visible perimeter topstitching tone-on-tone, even but no detailed stress-point view",
                    "strap_construction": "thin adjustable crossbody strap with buckle slider and scalloped cut-out leather-look shoulder sections attached with snaps\/rings",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1,6: handbag form with adjustable crossbody strap"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: no turnlock, no creed, no brass, no glove-tanned unlined construction, silhouette and scalloped strap details match modern fast-fashion hobo, not any catalog style in section 4",
                    "Era reasoning: materials, hardware tone and construction indicate modern (2000s+) non-Coach manufacture",
                    "Condition: seller states Excellent; photos show intact surface with light creasing but no interior, bottom or close wear views so grade cannot be verified"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17705,
            "output_tokens": 908,
            "total_tokens": 18613,
            "estimated_cost_usd": 0.009261
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18044,
            "output_tokens": 1171,
            "total_tokens": 19215,
            "estimated_cost_usd": 0.004546
        }
    ]
}