Vintage Coach Hunter

{
    "is_handbag_probability": 0.535,
    "coach_probability": 0.02,
    "vintage_probability": 0.025,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.765,
    "seller_misidentification_probability": 0.03,
    "confidence": 0.855,
    "recommended_max_bid": 8,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: object is a backpack with a contemporary multi-zipper design, not a recognizable classic vintage Coach handbag silhouette",
        "photo 3: interior has a repeating printed synthetic-looking lining; this is inconsistent with classic unlined glove-tanned Coach styles",
        "photos 1-3: no legible COACH wordmark, horse-and-carriage, creed patch, serial\/style number, or Coach hangtag is visible",
        "photos 1-3: hardware and construction appear lightweight and fashion-oriented rather than the substantial solid-brass hardware typical of many vintage Coach classics",
        "photo 1: soft slouchy matte faux-suede\/PU-like body, not full-grain glove-tanned cowhide",
        "photo 1, photo 2: thin bright gold-tone zippers and buckle, plated appearance, not solid brass vintage hardware",
        "photo 3: fully lined with light beige polyester with white speckled print, vintage Coach classics are unlined suede-back",
        "photo 1, photo 2, photo 3: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
        "photo 1, photo 2: modern fast-fashion backpack silhouette with multiple exterior zip pockets and thin straps, does not match Coach Daypack 9791 \/ Mini Daypack 9960 construction"
    ],
    "missing_information": [
        "photo 1: close-up of every interior wall and pocket for a possible creed or brand label",
        "photo 3: close-up of the small interior fabric tag and zipper-pull markings",
        "photos 1-3: bottom, side seams, strap ends, and all hardware should be photographed closely if further brand identification is desired",
        "seller-stated material composition and measurements are unavailable",
        "photo 1-3: no creed patch shown - request straight-on interior pocket wall photo",
        "photo 1-2: no hardware brand stamps visible - request zipper pull and buckle close-ups",
        "photo 3: interior fabric tag \/ made-in tag not shown - request pocket seam tag photo"
    ],
    "authenticity_concerns": [
        "photos 1-3: printed lining and modern backpack construction do not correspond to the usual construction of a vintage Coach classic",
        "photos 1-3: absence of any visible Coach identifier leaves no evidence supporting Coach manufacture"
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because the coach probability is very low and no Coach identifier is visible.",
        "Condition: Good; the bag is visibly used with substantial wrinkling and creasing, though no major tear or broken hardware is apparent in the provided views. Interior and bottom condition are only partially shown.",
        "Backpack form was considered but Daypack 9791 \/ Mini Daypack 9960 are unlined glove-tanned leather with solid brass hardware and creed patch - none present here",
        "Material, lining, and hardware all point to modern synthetic fast-fashion backpack, inconsistent with any Coach era per construction rules",
        "Condition: Good to Very Good used; soft wear and wrinkling but no tears visible in photos 1-3; interior looks clean"
    ],
    "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": "photos 1-3: gold-tone zipper teeth, zipper pulls, rings, and buckles are visible; no Coach engraving is legible",
        "leather_description": "photos 1-3: smooth brown\/taupe material with a soft, uniform finish; genuine leather cannot be confirmed from these photos",
        "lining_description": "photo 3: light tan lining with an all-over small repeating printed motif and zippered interior compartment",
        "strap_construction": "photos 1-2: adjustable backpack straps and a narrow adjustable shoulder\/handle strap with buckles and stitched attachments",
        "stitching_description": "photos 1-3: visible machine stitching is generally even, with some wrinkling and distortion around the pockets and body seams"
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0231,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.92,
                "coach_probability": 0.02,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: object is a backpack with a contemporary multi-zipper design, not a recognizable classic vintage Coach handbag silhouette",
                    "photo 3: interior has a repeating printed synthetic-looking lining; this is inconsistent with classic unlined glove-tanned Coach styles",
                    "photos 1-3: no legible COACH wordmark, horse-and-carriage, creed patch, serial\/style number, or Coach hangtag is visible",
                    "photos 1-3: hardware and construction appear lightweight and fashion-oriented rather than the substantial solid-brass hardware typical of many vintage Coach classics"
                ],
                "missing_information": [
                    "photo 1: close-up of every interior wall and pocket for a possible creed or brand label",
                    "photo 3: close-up of the small interior fabric tag and zipper-pull markings",
                    "photos 1-3: bottom, side seams, strap ends, and all hardware should be photographed closely if further brand identification is desired",
                    "seller-stated material composition and measurements are unavailable"
                ],
                "authenticity_concerns": [
                    "photos 1-3: printed lining and modern backpack construction do not correspond to the usual construction of a vintage Coach classic",
                    "photos 1-3: absence of any visible Coach identifier leaves no evidence supporting Coach manufacture"
                ],
                "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": "photos 1-3: gold-tone zipper teeth, zipper pulls, rings, and buckles are visible; no Coach engraving is legible",
                    "leather_description": "photos 1-3: smooth brown\/taupe material with a soft, uniform finish; genuine leather cannot be confirmed from these photos",
                    "lining_description": "photo 3: light tan lining with an all-over small repeating printed motif and zippered interior compartment",
                    "strap_construction": "photos 1-2: adjustable backpack straps and a narrow adjustable shoulder\/handle strap with buckles and stitched attachments",
                    "stitching_description": "photos 1-3: visible machine stitching is generally even, with some wrinkling and distortion around the pockets and body seams"
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because the coach probability is very low and no Coach identifier is visible.",
                    "Condition: Good; the bag is visibly used with substantial wrinkling and creasing, though no major tear or broken hardware is apparent in the provided views. Interior and bottom condition are only partially shown."
                ],
                "confidence": 0.86,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 30
            }
        },
        {
            "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": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.15,
                "missing_information": [
                    "photo 1-3: no creed patch shown - request straight-on interior pocket wall photo",
                    "photo 1-2: no hardware brand stamps visible - request zipper pull and buckle close-ups",
                    "photo 3: interior fabric tag \/ made-in tag not shown - request pocket seam tag photo"
                ],
                "negative_evidence": [
                    "photo 1: soft slouchy matte faux-suede\/PU-like body, not full-grain glove-tanned cowhide",
                    "photo 1, photo 2: thin bright gold-tone zippers and buckle, plated appearance, not solid brass vintage hardware",
                    "photo 3: fully lined with light beige polyester with white speckled print, vintage Coach classics are unlined suede-back",
                    "photo 1, photo 2, photo 3: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
                    "photo 1, photo 2: modern fast-fashion backpack silhouette with multiple exterior zip pockets and thin straps, does not match Coach Daypack 9791 \/ Mini Daypack 9960 construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone zippers with leatherette tassel pulls and small buckle on backpack strap; thin, plated appearance, no COACH stamping visible",
                    "leather_description": "dusty rose-brown matte soft material with slouchy drape and wrinkling, looks like faux-suede \/ PU, not glove-tanned full-grain leather",
                    "lining_description": "photo 3: light tan polyester lining with white speckled \/ animal-spot print, zip pocket inside",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light contrast topstitching around pockets and seams, even but not matched-tone vintage Coach style",
                    "strap_construction": "thin backpack shoulder straps with buckle adjustment, plus small top loop; narrow and unpadded",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Backpack form was considered but Daypack 9791 \/ Mini Daypack 9960 are unlined glove-tanned leather with solid brass hardware and creed patch - none present here",
                    "Material, lining, and hardware all point to modern synthetic fast-fashion backpack, inconsistent with any Coach era per construction rules",
                    "Condition: Good to Very Good used; soft wear and wrinkling but no tears visible in photos 1-3; interior looks clean"
                ],
                "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": 20308,
            "output_tokens": 732,
            "total_tokens": 21040,
            "estimated_cost_usd": 0.00988
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 20844,
            "output_tokens": 1274,
            "total_tokens": 22118,
            "estimated_cost_usd": 0.005188
        }
    ]
}