Vintage Coach Hunter

{
    "is_handbag_probability": 0.945,
    "coach_probability": 0.015,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.805,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.925,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [
        "photo 4: the CGD interior label is clearly visible and reads \"CGD EST. 2017,\" providing a non-Coach brand identifier.",
        "photo 6: the black bag has a visible \"EXPRESSIONS NYC\" wordmark, identifying it as a different brand.",
        "photos 1-6: both items are compact zippered sling\/crossbody bags and are clearly handbags."
    ],
    "negative_evidence": [
        "photos 1-2: both bags use fabric\/canvas or synthetic-looking materials, not vintage Coach glove-tanned leather.",
        "photos 1-2: visible hardware is silver-tone\/plastic-looking zipper hardware and clip hardware, with no vintage Coach brass turnlock construction.",
        "photos 3-5: the CGD bag has a fabric lining, white zipper tape, and a sewn CGD label rather than a Coach creed patch.",
        "photo 6: the black bag is explicitly marked EXPRESSIONS NYC and has a modern synthetic pebbled finish.",
        "photos 1-6: no Coach wordmark, horse-and-carriage mark, creed, serial\/style number, or Coach hangtag is visible.",
        "photo 6: black bag foil-stamped EXPRESSIONS NYC - alternate brand, not Coach",
        "photo 3: yellow bag has CGD EST 2017 woven patch - alternate modern brand, not Coach",
        "photo 1: left bag is pebbled faux\/vegan leather sling form with silver-tone zippers, never a vintage Coach classic form",
        "photo 1, photo 2: right bag is yellow\/grey striped canvas with braided cord strap and white plastic zippers - nylon\/canvas synthetic construction",
        "photo 5: red synthetic lining and white plastic coil zippers visible - inconsistent with glove-tanned unlined Coach classics",
        "no COACH wordmark, horse-and-carriage, creed patch, leather hangtag, solid brass turnlock or Talon brass zipper visible in any of 6 photos"
    ],
    "missing_information": [
        "photo 1-6: no complete bottom, strap-end, or hardware close-ups for either bag, although these are unlikely to change the clear non-Coach identification.",
        "photo 1-6: no full measurement information is visible."
    ],
    "authenticity_concerns": [
        "photos 1-6: the materials, fabric-lined construction, modern zipper details, and explicit Expressions NYC\/CGD branding are inconsistent with a vintage Coach handbag.",
        "photo 4: the CGD label states EST. 2017, placing that bag in a modern non-Coach category."
    ],
    "possible_model_reasoning": [
        "photos 1-6: neither item matches a Coach catalog silhouette closely enough to support a Coach model assignment; both are modern utility sling\/belt bags.",
        "photo 4: CGD EST. 2017 label and striped yellow\/gray textile construction support a modern CGD bag.",
        "photo 6: EXPRESSIONS NYC wordmark and synthetic pebbled exterior identify the black bag as Expressions NYC.",
        "photos 1-6: condition appears Good overall, with light handling wear and some visible interior lint\/marks; resale should be valued as a low-priced branded accessory lot, not vintage Coach.",
        "No Coach identifier in any photo; instead two alternate brands positively identified: EXPRESSIONS NYC on black faux-leather sling and CGD EST 2017 on yellow canvas sling",
        "Materials and hardware - faux leather, canvas, plastic coil zippers, braided cord, plastic buckle, synthetic lining - place both bags in modern fast-fashion sling\/belt-bag category per Step 1 triage, coach_probability <=0.05",
        "Silhouettes are modern sling\/belt bags, not matching any vintage Coach catalog style in section 4; silhouette alone would not prove Coach in any case",
        "Condition: seller states Good Pre-Owned with clean interiors and light wear; photos show intact surfaces consistent with Good, but grading is for generic bags, not Coach condition tiers"
    ],
    "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 1-2 and 6: silver-tone zipper teeth, white zipper tape on the CGD bag, and clip\/buckle strap hardware; no Coach-style vintage brass turnlock is visible.",
        "leather_description": "photo 1: black pebbled synthetic-looking material on the Expressions NYC bag; photo 1 and photos 3-5: yellow\/gray textile canvas on the CGD bag.",
        "lining_description": "photos 3-5: fabric lining in the CGD bag, including yellow, black, and red compartments; no Coach suede\/unlined classic interior.",
        "strap_construction": "photos 1-2: adjustable strap\/clip construction and braided cord loop on the CGD bag; no vintage Coach dogleash-clip strap or classic buckle construction is visible.",
        "stitching_description": "photos 1-2 and 5: visible machine stitching appears regular and modern; no distinctive vintage Coach construction evidence."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0022,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.01,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.91,
                "seller_misidentification_probability": 0.02,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 4: the CGD interior label is clearly visible and reads \"CGD EST. 2017,\" providing a non-Coach brand identifier.",
                    "photo 6: the black bag has a visible \"EXPRESSIONS NYC\" wordmark, identifying it as a different brand.",
                    "photos 1-6: both items are compact zippered sling\/crossbody bags and are clearly handbags."
                ],
                "negative_evidence": [
                    "photos 1-2: both bags use fabric\/canvas or synthetic-looking materials, not vintage Coach glove-tanned leather.",
                    "photos 1-2: visible hardware is silver-tone\/plastic-looking zipper hardware and clip hardware, with no vintage Coach brass turnlock construction.",
                    "photos 3-5: the CGD bag has a fabric lining, white zipper tape, and a sewn CGD label rather than a Coach creed patch.",
                    "photo 6: the black bag is explicitly marked EXPRESSIONS NYC and has a modern synthetic pebbled finish.",
                    "photos 1-6: no Coach wordmark, horse-and-carriage mark, creed, serial\/style number, or Coach hangtag is visible."
                ],
                "missing_information": [
                    "photo 1-6: no complete bottom, strap-end, or hardware close-ups for either bag, although these are unlikely to change the clear non-Coach identification.",
                    "photo 1-6: no full measurement information is visible."
                ],
                "authenticity_concerns": [
                    "photos 1-6: the materials, fabric-lined construction, modern zipper details, and explicit Expressions NYC\/CGD branding are inconsistent with a vintage Coach handbag.",
                    "photo 4: the CGD label states EST. 2017, placing that bag in a modern non-Coach category."
                ],
                "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 1-2 and 6: silver-tone zipper teeth, white zipper tape on the CGD bag, and clip\/buckle strap hardware; no Coach-style vintage brass turnlock is visible.",
                    "leather_description": "photo 1: black pebbled synthetic-looking material on the Expressions NYC bag; photo 1 and photos 3-5: yellow\/gray textile canvas on the CGD bag.",
                    "lining_description": "photos 3-5: fabric lining in the CGD bag, including yellow, black, and red compartments; no Coach suede\/unlined classic interior.",
                    "strap_construction": "photos 1-2: adjustable strap\/clip construction and braided cord loop on the CGD bag; no vintage Coach dogleash-clip strap or classic buckle construction is visible.",
                    "stitching_description": "photos 1-2 and 5: visible machine stitching appears regular and modern; no distinctive vintage Coach construction evidence."
                },
                "possible_model_reasoning": [
                    "photos 1-6: neither item matches a Coach catalog silhouette closely enough to support a Coach model assignment; both are modern utility sling\/belt bags.",
                    "photo 4: CGD EST. 2017 label and striped yellow\/gray textile construction support a modern CGD bag.",
                    "photo 6: EXPRESSIONS NYC wordmark and synthetic pebbled exterior identify the black bag as Expressions NYC.",
                    "photos 1-6: condition appears Good overall, with light handling wear and some visible interior lint\/marks; resale should be valued as a low-priced branded accessory lot, not vintage Coach."
                ],
                "confidence": 0.97,
                "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": 25,
                "estimated_resale_low": 8,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.9,
                "missing_information": [],
                "negative_evidence": [
                    "photo 6: black bag foil-stamped EXPRESSIONS NYC - alternate brand, not Coach",
                    "photo 3: yellow bag has CGD EST 2017 woven patch - alternate modern brand, not Coach",
                    "photo 1: left bag is pebbled faux\/vegan leather sling form with silver-tone zippers, never a vintage Coach classic form",
                    "photo 1, photo 2: right bag is yellow\/grey striped canvas with braided cord strap and white plastic zippers - nylon\/canvas synthetic construction",
                    "photo 5: red synthetic lining and white plastic coil zippers visible - inconsistent with glove-tanned unlined Coach classics",
                    "no COACH wordmark, horse-and-carriage, creed patch, leather hangtag, solid brass turnlock or Talon brass zipper visible in any of 6 photos"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone zippers with white plastic coil teeth on canvas bag (photo 2, photo 5); silver-tone metal zippers on black bag (photo 6); black plastic quick-release buckle (photo 1); no brass turnlock, no stamped pulls",
                    "leather_description": "photo 1, photo 6: black pebbled faux\/vegan leather as seller states - grained synthetic surface with foil EXPRESSIONS NYC stamp, not glove-tanned cowhide",
                    "lining_description": "photo 5: red synthetic fabric lining inside yellow bag; seller states blue recycled lining in black bag - both synthetic, not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "photo 2: white contrast machine stitching on canvas strap anchor; photo 6: dark straight machine stitching along zipper - modern casual construction",
                    "strap_construction": "photo 1, photo 2: black adjustable belt strap on faux-leather sling; braided grey cord loop and black webbing with plastic quick-release clip on canvas sling",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier in any photo; instead two alternate brands positively identified: EXPRESSIONS NYC on black faux-leather sling and CGD EST 2017 on yellow canvas sling",
                    "Materials and hardware - faux leather, canvas, plastic coil zippers, braided cord, plastic buckle, synthetic lining - place both bags in modern fast-fashion sling\/belt-bag category per Step 1 triage, coach_probability <=0.05",
                    "Silhouettes are modern sling\/belt bags, not matching any vintage Coach catalog style in section 4; silhouette alone would not prove Coach in any case",
                    "Condition: seller states Good Pre-Owned with clean interiors and light wear; photos show intact surfaces consistent with Good, but grading is for generic bags, not Coach condition tiers"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18320,
            "output_tokens": 958,
            "total_tokens": 19278,
            "estimated_cost_usd": 0.009627
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18885,
            "output_tokens": 1561,
            "total_tokens": 20446,
            "estimated_cost_usd": 0.005026
        }
    ]
}