Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.045,
    "vintage_probability": 0.66,
    "authenticity_confidence": 0.04,
    "image_quality_score": 0.635,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.705,
    "recommended_max_bid": 5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 20,
    "possible_models": [],
    "positive_evidence": [
        "photo 2: structured leather-like shoulder\/clutch silhouette with metal feet and a small gold-tone closure, consistent with a vintage handbag generally",
        "photo 4: interior construction and zip pocket are visible, allowing basic assessment",
        "photo 2, photo 3: leather handbag with vintage wear consistent with age, the population where misidentified bags hide"
    ],
    "negative_evidence": [
        "photo 1: strap appears heavily cracked or peeling and the bag has a glossy, coated-looking finish rather than clearly visible glove-tanned Coach leather",
        "photo 4: dark fabric lining is visible; no Coach creed, wordmark, or horse-and-carriage is shown",
        "photos 1-4: hardware and construction appear generic, with no distinctive Coach identifier",
        "listing data: seller identifies the item as unbranded; this is weak contextual evidence only",
        "photo 4: dark brown fabric lining with center zip pocket - vintage Coach classics are unlined suede, not fabric-lined",
        "photo 4: top frame \/ kisslock-style clasp closure, no turnlock present - not a Coach classic closure",
        "photo 1,2,3: glossy coated smooth off-white leather, not matte glove-tanned cowhide with natural grain",
        "photo 1,2,3,4: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible in any view",
        "photo 1: strap underside heavily cracked \/ crazed with painted edges, inconsistent with Coach glove-tanned construction"
    ],
    "missing_information": [
        "Straight-on interior back-wall and pocket photographs to check for a sewn Coach creed or fabric tag",
        "Close-up photographs of every interior label, zipper pull, clasp, and strap attachment",
        "Full front, back, side, bottom, and corner views",
        "Seller-stated dimensions and confirmation of the material",
        "creed \/ interior brand stamp not shown in close-up - photo 4 shows lined interior with no Coach creed patch visible",
        "exterior front \/ closure close-up and hardware engravings not shown",
        "bottom feet and frame hardware maker marks not shown legibly"
    ],
    "authenticity_concerns": [
        "photo 1: visibly deteriorated strap surface and coated-looking finish are inconsistent with the usual appearance of classic unlined glove-tanned Coach bags",
        "photo 4: fabric lining and generic construction provide no support for Coach manufacture"
    ],
    "possible_model_reasoning": [
        "No Coach silhouette match: frame kisslock handbag with base feet and fabric lining does not match City Bag (9790), Willis (9927), Court (9870), Dinky (9375) or other turnlock classics",
        "Era reasoning: construction (fabric lining, frame closure, coated leather) and wear suggest generic vintage-style frame bag, not Coach NYC\/US glove-tanned era",
        "Condition: Good to Fair; strap cracking\/finish loss (photo 1), scuffs and marks and corner wear (photo 2, photo 3), interior appears intact but used (photo 4)"
    ],
    "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: gold-tone tubular clasp and metal strap rings; photo 2: small gold-tone feet; no Coach engraving is visible",
        "leather_description": "photos 1-3: cream-colored glossy or coated-looking material, with substantial scuffing and apparent peeling\/cracking on the strap; exact material not determinable",
        "lining_description": "photo 4: dark brown or burgundy fabric lining with one interior zip pocket",
        "strap_construction": "photos 1-3: narrow adjustable-looking shoulder strap attached by metal rings; surface is heavily cracked or peeling",
        "stitching_description": "photos 1-4: visible perimeter stitching appears generally regular, with some wear and loose thread visible near the opening in photo 4"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0021,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.06,
                "vintage_probability": 0.72,
                "authenticity_confidence": 0.05,
                "image_quality_score": 0.72,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 2: structured leather-like shoulder\/clutch silhouette with metal feet and a small gold-tone closure, consistent with a vintage handbag generally",
                    "photo 4: interior construction and zip pocket are visible, allowing basic assessment"
                ],
                "negative_evidence": [
                    "photo 1: strap appears heavily cracked or peeling and the bag has a glossy, coated-looking finish rather than clearly visible glove-tanned Coach leather",
                    "photo 4: dark fabric lining is visible; no Coach creed, wordmark, or horse-and-carriage is shown",
                    "photos 1-4: hardware and construction appear generic, with no distinctive Coach identifier",
                    "listing data: seller identifies the item as unbranded; this is weak contextual evidence only"
                ],
                "missing_information": [
                    "Straight-on interior back-wall and pocket photographs to check for a sewn Coach creed or fabric tag",
                    "Close-up photographs of every interior label, zipper pull, clasp, and strap attachment",
                    "Full front, back, side, bottom, and corner views",
                    "Seller-stated dimensions and confirmation of the material"
                ],
                "authenticity_concerns": [
                    "photo 1: visibly deteriorated strap surface and coated-looking finish are inconsistent with the usual appearance of classic unlined glove-tanned Coach bags",
                    "photo 4: fabric lining and generic construction provide no support for 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": "photo 1: gold-tone tubular clasp and metal strap rings; photo 2: small gold-tone feet; no Coach engraving is visible",
                    "leather_description": "photos 1-3: cream-colored glossy or coated-looking material, with substantial scuffing and apparent peeling\/cracking on the strap; exact material not determinable",
                    "lining_description": "photo 4: dark brown or burgundy fabric lining with one interior zip pocket",
                    "strap_construction": "photos 1-3: narrow adjustable-looking shoulder strap attached by metal rings; surface is heavily cracked or peeling",
                    "stitching_description": "photos 1-4: visible perimeter stitching appears generally regular, with some wear and loose thread visible near the opening in photo 4"
                },
                "possible_model_reasoning": [],
                "confidence": 0.76,
                "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": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.65,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 15,
                "estimated_resale_low": 5,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "creed \/ interior brand stamp not shown in close-up - photo 4 shows lined interior with no Coach creed patch visible",
                    "exterior front \/ closure close-up and hardware engravings not shown",
                    "bottom feet and frame hardware maker marks not shown legibly"
                ],
                "negative_evidence": [
                    "photo 4: dark brown fabric lining with center zip pocket - vintage Coach classics are unlined suede, not fabric-lined",
                    "photo 4: top frame \/ kisslock-style clasp closure, no turnlock present - not a Coach classic closure",
                    "photo 1,2,3: glossy coated smooth off-white leather, not matte glove-tanned cowhide with natural grain",
                    "photo 1,2,3,4: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible in any view",
                    "photo 1: strap underside heavily cracked \/ crazed with painted edges, inconsistent with Coach glove-tanned construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone frame clasp and small base feet (photo 2, photo 4); thin wire-loop strap attachments; tone consistent but lightweight appearance, not solid vintage brass turnlock hardware",
                    "leather_description": "off-white \/ bone smooth leather with high gloss \/ coated appearance, creasing and scuffs visible (photo 2, photo 3)",
                    "lining_description": "dark brown fabric lining with center zip pocket (photo 4), not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "edge stitching visible on strap (photo 1); no tight contrast analysis possible, appears standard commercial",
                    "strap_construction": "short thin single shoulder strap, surface cracking and finish loss on underside (photo 1), attached via small metal loops (photo 4)",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 2, photo 3: leather handbag with vintage wear consistent with age, the population where misidentified bags hide"
                ],
                "possible_model_reasoning": [
                    "No Coach silhouette match: frame kisslock handbag with base feet and fabric lining does not match City Bag (9790), Willis (9927), Court (9870), Dinky (9375) or other turnlock classics",
                    "Era reasoning: construction (fabric lining, frame closure, coated leather) and wear suggest generic vintage-style frame bag, not Coach NYC\/US glove-tanned era",
                    "Condition: Good to Fair; strap cracking\/finish loss (photo 1), scuffs and marks and corner wear (photo 2, photo 3), interior appears intact but used (photo 4)"
                ],
                "possible_models": [],
                "recommended_max_bid": 5,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.6
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16821,
            "output_tokens": 727,
            "total_tokens": 17548,
            "estimated_cost_usd": 0.008473
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17138,
            "output_tokens": 1523,
            "total_tokens": 18661,
            "estimated_cost_usd": 0.004646
        }
    ]
}