Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.03,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.74,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.84,
    "recommended_max_bid": 11,
    "estimated_resale_low": 15,
    "estimated_resale_high": 42.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 2: the brown tote has a glossy, structured synthetic-looking exterior, contrasting machine stitching, and a generic round decorative tab rather than recognizable vintage Coach construction.",
        "photo 3: the brown tote has a shiny polyester-like fabric lining and multiple zip compartments, inconsistent with classic unlined glove-tanned Coach styles.",
        "photo 6: the black\/tan crossbody visibly carries a \"ST JOHN'S BAY\" metal wordmark, identifying at least one bag in the lot as another brand.",
        "photo 1: no visible Coach wordmark, carriage, creed patch, hangtag, signature-C pattern, or other Coach identifier appears on the bags.",
        "photo 1: the lot contains several mixed-material, modern-looking handbags rather than a clearly identifiable vintage Coach silhouette.",
        "photo 1: lot of 5 modern fast-fashion silhouettes, none matches a Coach catalog silhouette",
        "photo 3: brown tote interior is shiny dark satin polyester lining, never used on vintage glove-tanned Coach classics",
        "photo 2,4,5: brown tote has smooth high-sheen faux-leather look, contrast stitching, silver-tone rivets, no turnlock, no hangtag, no brass",
        "photo 6: front crossbody has visible ST JOHN'S BAY brand plate, silver-tone buckle, pebbled faux-leather, modern multi-zip construction",
        "photo 1: small black flap bag has gold-tone interlocked-C-like clasp but no COACH wordmark, no creed, no hangtag visible",
        "photo 1: all visible hardware is silver or bright gold plate, none is solid brass with vintage patina"
    ],
    "missing_information": [
        "photo 1: the interiors and brand labels of the remaining bags are not shown clearly enough to identify every item.",
        "photo 2: no close-up of the brown tote's interior label, zipper pulls, or underside is provided.",
        "photo 1: dimensions, material composition, and condition details for the other bags are not provided.",
        "No creed patch shown for any of the 5 bags in lot - no interior close-ups except brown tote (photo 3)",
        "No hardware close-ups, zipper brand stamps, or Made-in tags shown",
        "No bottom, side, or individual back views for most bags",
        "No hangtag views (front\/back) for any bag"
    ],
    "authenticity_concerns": [
        "photo 2: the brown tote's shiny exterior, polyester-like lining, and generic decorative front tab are inconsistent with a classic vintage Coach leather bag.",
        "photo 1: the lot appears to contain generic or department-store handbags, and no Coach-specific identifier supports a Coach attribution."
    ],
    "possible_model_reasoning": [
        "photo 2: the brown zip-top tote is not a convincing match for City Bag, Willis, Court, or Station because it lacks their characteristic flap\/turnlock construction and appears lined and synthetic.",
        "photo 1: the other bags do not show enough Coach-specific shape or branding to assign a Coach model.",
        "photo 2: condition of the brown tote is approximately Good to Very Good based on visible creasing and surface dents; interiors and all corners of the full lot are not sufficiently documented.",
        "No bag in the 5-bag lot matches a Coach model in silhouette, closure, leather, lining or hardware; brown tote is zip-top with center seam medallion, not a Coach style",
        "St. John's Bay plate positively identifies front bag as non-Coach department-store brand",
        "Materials (shiny synthetic, satin polyester lining) and plated hardware point to modern non-Coach fast fashion, not 1970s-1990s glove-tanned Coach",
        "Condition: Good to Very Good superficially for lot - brown tote shows creasing\/scuffs (photos 2,4,5) but no corner blowouts visible; full grading capped by missing bottom\/interior views for 4 of 5 bags"
    ],
    "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: mixed small-tone hardware is visible; the brown tote has a round sewn decorative tab, not a recognizable Coach turnlock. photo 6: the black\/tan crossbody has a visible ST JOHN'S BAY plaque and silver-tone buckle hardware.",
        "leather_description": "photo 2: the brown tote appears glossy and smooth, more consistent with synthetic or coated material than vintage glove-tanned leather. photo 6: the ST JOHN'S BAY bag has pebbled-looking synthetic or finished material; composition is not confirmed.",
        "lining_description": "photo 3: the brown tote has a dark shiny textile lining with zip and slip pockets, visibly not an unlined classic Coach interior.",
        "strap_construction": "photo 1: the lot includes short rolled handles, shoulder straps, and adjustable crossbody straps; detailed attachment construction is not visible for all bags.",
        "stitching_description": "photo 2: the brown tote shows contrasting machine stitching that is generally even, but it does not provide Coach-specific evidence."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0032,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 2: the brown tote has a glossy, structured synthetic-looking exterior, contrasting machine stitching, and a generic round decorative tab rather than recognizable vintage Coach construction.",
                    "photo 3: the brown tote has a shiny polyester-like fabric lining and multiple zip compartments, inconsistent with classic unlined glove-tanned Coach styles.",
                    "photo 6: the black\/tan crossbody visibly carries a \"ST JOHN'S BAY\" metal wordmark, identifying at least one bag in the lot as another brand.",
                    "photo 1: no visible Coach wordmark, carriage, creed patch, hangtag, signature-C pattern, or other Coach identifier appears on the bags.",
                    "photo 1: the lot contains several mixed-material, modern-looking handbags rather than a clearly identifiable vintage Coach silhouette."
                ],
                "missing_information": [
                    "photo 1: the interiors and brand labels of the remaining bags are not shown clearly enough to identify every item.",
                    "photo 2: no close-up of the brown tote's interior label, zipper pulls, or underside is provided.",
                    "photo 1: dimensions, material composition, and condition details for the other bags are not provided."
                ],
                "authenticity_concerns": [
                    "photo 2: the brown tote's shiny exterior, polyester-like lining, and generic decorative front tab are inconsistent with a classic vintage Coach leather bag.",
                    "photo 1: the lot appears to contain generic or department-store handbags, and no Coach-specific identifier supports a Coach attribution."
                ],
                "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: mixed small-tone hardware is visible; the brown tote has a round sewn decorative tab, not a recognizable Coach turnlock. photo 6: the black\/tan crossbody has a visible ST JOHN'S BAY plaque and silver-tone buckle hardware.",
                    "leather_description": "photo 2: the brown tote appears glossy and smooth, more consistent with synthetic or coated material than vintage glove-tanned leather. photo 6: the ST JOHN'S BAY bag has pebbled-looking synthetic or finished material; composition is not confirmed.",
                    "lining_description": "photo 3: the brown tote has a dark shiny textile lining with zip and slip pockets, visibly not an unlined classic Coach interior.",
                    "strap_construction": "photo 1: the lot includes short rolled handles, shoulder straps, and adjustable crossbody straps; detailed attachment construction is not visible for all bags.",
                    "stitching_description": "photo 2: the brown tote shows contrasting machine stitching that is generally even, but it does not provide Coach-specific evidence."
                },
                "possible_model_reasoning": [
                    "photo 2: the brown zip-top tote is not a convincing match for City Bag, Willis, Court, or Station because it lacks their characteristic flap\/turnlock construction and appears lined and synthetic.",
                    "photo 1: the other bags do not show enough Coach-specific shape or branding to assign a Coach model.",
                    "photo 2: condition of the brown tote is approximately Good to Very Good based on visible creasing and surface dents; interiors and all corners of the full lot are not sufficiently documented."
                ],
                "confidence": 0.86,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.82,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 40,
                "estimated_resale_low": 15,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "No creed patch shown for any of the 5 bags in lot - no interior close-ups except brown tote (photo 3)",
                    "No hardware close-ups, zipper brand stamps, or Made-in tags shown",
                    "No bottom, side, or individual back views for most bags",
                    "No hangtag views (front\/back) for any bag"
                ],
                "negative_evidence": [
                    "photo 1: lot of 5 modern fast-fashion silhouettes, none matches a Coach catalog silhouette",
                    "photo 3: brown tote interior is shiny dark satin polyester lining, never used on vintage glove-tanned Coach classics",
                    "photo 2,4,5: brown tote has smooth high-sheen faux-leather look, contrast stitching, silver-tone rivets, no turnlock, no hangtag, no brass",
                    "photo 6: front crossbody has visible ST JOHN'S BAY brand plate, silver-tone buckle, pebbled faux-leather, modern multi-zip construction",
                    "photo 1: small black flap bag has gold-tone interlocked-C-like clasp but no COACH wordmark, no creed, no hangtag visible",
                    "photo 1: all visible hardware is silver or bright gold plate, none is solid brass with vintage patina"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone rivets and zippers on brown tote (photos 2,4,5); silver-tone buckle and brand plate on crossbody (photo 6); gold-tone clasp on small black bag (photo 1); no solid brass, no turnlock, no COACH stamping visible",
                    "leather_description": "smooth high-sheen coated faux-leather look on brown tote and black\/white tote; pebbled faux-leather look on olive and black\/tan crossbodies; no glove-tanned grain, no patina, no suede back visible",
                    "lining_description": "dark brown shiny satin polyester in brown tote (photo 3); linings of other 4 bags not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "contrasting light tan machine stitching on brown tote edges and handles (photos 2,4,5); white contrast stitching on black\/tan crossbody (photo 6); no tone-matched tight vintage Coach stitching observed",
                    "strap_construction": "short rolled top handles on brown tote; thin shoulder straps on other bags; no brass dogleash clips, no buckle-adjustable solid brass slides, no wooden dowel handle visible",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No bag in the 5-bag lot matches a Coach model in silhouette, closure, leather, lining or hardware; brown tote is zip-top with center seam medallion, not a Coach style",
                    "St. John's Bay plate positively identifies front bag as non-Coach department-store brand",
                    "Materials (shiny synthetic, satin polyester lining) and plated hardware point to modern non-Coach fast fashion, not 1970s-1990s glove-tanned Coach",
                    "Condition: Good to Very Good superficially for lot - brown tote shows creasing\/scuffs (photos 2,4,5) but no corner blowouts visible; full grading capped by missing bottom\/interior views for 4 of 5 bags"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28773,
            "output_tokens": 912,
            "total_tokens": 29685,
            "estimated_cost_usd": 0.013698
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30086,
            "output_tokens": 1426,
            "total_tokens": 31512,
            "estimated_cost_usd": 0.007158
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}