Vintage Coach Hunter

{
    "is_handbag_probability": 0.97,
    "coach_probability": 0.03,
    "vintage_probability": 0.39,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.715,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.8,
    "recommended_max_bid": 9,
    "estimated_resale_low": 10,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: rectangular flap handbag form - generic shape similarity only, no Coach-specific identifier"
    ],
    "negative_evidence": [
        "photo 1: hair-on cowhide body, ornate geometric tooling, and clasp construction do not resemble the smooth glove-tanned leather and restrained hardware of classic vintage Coach bags",
        "photo 1: silver-tone hardware is visible, whereas most 1970s\u2013early 1990s Coach classics used solid brass hardware",
        "photos 2-4: light synthetic-looking lining and zippered compartments are visible; no Coach creed, wordmark, or horse-and-carriage identifier is shown",
        "photos 2-4: visible pen marks and interior wear reduce resale value",
        "photo 1: hair-on cowhide body with tooled geometric leather flap - not Coach glove-tanned leather or classic silhouette",
        "photo 2: silver-tone kiss \/ frame clasp, not Coach brass turnlock geometry",
        "photos 2-4: off-white fabric lining, not unlined suede-back glove-tanned interior of vintage classics",
        "photos 2-4: no creed patch visible on interior back wall or slip pocket",
        "photo 1: no COACH wordmark, horse-and-carriage, or leather hangtag visible",
        "photo 1: strap missing, remaining brackets are silver-tone, not brass dogleash \/ lobster clips"
    ],
    "missing_information": [
        "photo 1: back, sides, bottom, and all corners are not shown",
        "photos 2-4: no close-up of zipper-pull stamps or other hardware markings",
        "photos 1-4: no dimensions or scale reference",
        "photos 1-4: no readable maker label, fabric tag, or brand stamp is visible",
        "photo of any interior leather creed patch or brand stamp straight-on in raking light (none visible in photos 2-4)",
        "photo of exterior back, sides, bottom and corners for wear assessment",
        "photo of hardware stamps \/ zipper-pull brand mark",
        "photo of strap brackets close-up; strap is stated missing"
    ],
    "authenticity_concerns": [
        "photos 1-4: construction is inconsistent with the classic vintage Coach population, particularly the hair-on cowhide, decorative tooling, silver-tone hardware, and lined interior",
        "photos 1-4: absence of any visible Coach identifier makes a transplanted or counterfeit Coach attribution unsupported"
    ],
    "possible_model_reasoning": [
        "No Coach model fits: hair-on hide, tooled flap, frame clasp, fabric lining and silver-tone hardware are inconsistent with 1970s-1990s glove-tanned classics (City Bag 9790, Willis 9927, Court 9870, Dinky 9375, etc.)",
        "No creed, serial, wordmark, hangtag or brass turnlock observed to support any Coach identification",
        "Condition: Good to Fair; seller notes pen marks inside visible in photo 4, strap missing (photo 1), lining wrinkled \/ soiled (photos 3-4); bottom \/ corners not shown so 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": "photo 1: silver-tone clasp hardware and two strap-attachment loops; no Coach engraving is visible",
        "leather_description": "photo 1: brown leather flap with geometric tooling and a beige\/cream hair-on cowhide body",
        "lining_description": "photos 2-4: light-colored fabric or synthetic lining with visible pen marks and an interior zip pocket",
        "strap_construction": "photos 1-4: no shoulder strap is present; two strap-attachment loops are visible",
        "stitching_description": "photos 1-4: generally visible, regular perimeter stitching; construction details are limited by the available views"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0024,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.28,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: hair-on cowhide body, ornate geometric tooling, and clasp construction do not resemble the smooth glove-tanned leather and restrained hardware of classic vintage Coach bags",
                    "photo 1: silver-tone hardware is visible, whereas most 1970s\u2013early 1990s Coach classics used solid brass hardware",
                    "photos 2-4: light synthetic-looking lining and zippered compartments are visible; no Coach creed, wordmark, or horse-and-carriage identifier is shown",
                    "photos 2-4: visible pen marks and interior wear reduce resale value"
                ],
                "missing_information": [
                    "photo 1: back, sides, bottom, and all corners are not shown",
                    "photos 2-4: no close-up of zipper-pull stamps or other hardware markings",
                    "photos 1-4: no dimensions or scale reference",
                    "photos 1-4: no readable maker label, fabric tag, or brand stamp is visible"
                ],
                "authenticity_concerns": [
                    "photos 1-4: construction is inconsistent with the classic vintage Coach population, particularly the hair-on cowhide, decorative tooling, silver-tone hardware, and lined interior",
                    "photos 1-4: absence of any visible Coach identifier makes a transplanted or counterfeit Coach attribution unsupported"
                ],
                "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: silver-tone clasp hardware and two strap-attachment loops; no Coach engraving is visible",
                    "leather_description": "photo 1: brown leather flap with geometric tooling and a beige\/cream hair-on cowhide body",
                    "lining_description": "photos 2-4: light-colored fabric or synthetic lining with visible pen marks and an interior zip pocket",
                    "strap_construction": "photos 1-4: no shoulder strap is present; two strap-attachment loops are visible",
                    "stitching_description": "photos 1-4: generally visible, regular perimeter stitching; construction details are limited by the available views"
                },
                "possible_model_reasoning": [],
                "confidence": 0.82,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.96,
                "missing_information": [
                    "photo of any interior leather creed patch or brand stamp straight-on in raking light (none visible in photos 2-4)",
                    "photo of exterior back, sides, bottom and corners for wear assessment",
                    "photo of hardware stamps \/ zipper-pull brand mark",
                    "photo of strap brackets close-up; strap is stated missing"
                ],
                "negative_evidence": [
                    "photo 1: hair-on cowhide body with tooled geometric leather flap - not Coach glove-tanned leather or classic silhouette",
                    "photo 2: silver-tone kiss \/ frame clasp, not Coach brass turnlock geometry",
                    "photos 2-4: off-white fabric lining, not unlined suede-back glove-tanned interior of vintage classics",
                    "photos 2-4: no creed patch visible on interior back wall or slip pocket",
                    "photo 1: no COACH wordmark, horse-and-carriage, or leather hangtag visible",
                    "photo 1: strap missing, remaining brackets are silver-tone, not brass dogleash \/ lobster clips"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone frame \/ kiss-type clasp and interior zipper; strap-bracket hardware at top sides; no solid brass turnlock, no COACH stamping visible",
                    "leather_description": "hair-on natural beige and brown cowhide body; smooth tan-brown leather flap with tooled \/ embossed geometric border",
                    "lining_description": "off-white \/ cream fabric lining with interior zip pocket; not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "edge stitching visible on flap perimeter, appears even but not close enough to assess thread match; no other detail visible",
                    "strap_construction": "strap missing - seller states does not have strap; only small metal brackets remain at top (photo 1)",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: rectangular flap handbag form - generic shape similarity only, no Coach-specific identifier"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: hair-on hide, tooled flap, frame clasp, fabric lining and silver-tone hardware are inconsistent with 1970s-1990s glove-tanned classics (City Bag 9790, Willis 9927, Court 9870, Dinky 9375, etc.)",
                    "No creed, serial, wordmark, hangtag or brass turnlock observed to support any Coach identification",
                    "Condition: Good to Fair; seller notes pen marks inside visible in photo 4, strap missing (photo 1), lining wrinkled \/ soiled (photos 3-4); bottom \/ corners not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.5
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17107,
            "output_tokens": 816,
            "total_tokens": 17923,
            "estimated_cost_usd": 0.008801
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17569,
            "output_tokens": 1465,
            "total_tokens": 19034,
            "estimated_cost_usd": 0.004686
        }
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}