Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.025,
    "vintage_probability": 0.045,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.755,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.895,
    "recommended_max_bid": 8,
    "estimated_resale_low": 5,
    "estimated_resale_high": 20,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: bag uses an all-over geometric F-like monogram rather than Coach's paired-C Signature pattern or a plain vintage Coach leather construction",
        "photo 1: silver-tone hardware and a narrow adjustable-looking strap are inconsistent with the typical solid-brass hardware of classic vintage Coach styles",
        "photo 5: exposed interior appears fabric-lined, whereas many classic glove-tanned Coach bags are unlined suede-backed leather",
        "photo 6: interior shows synthetic-looking fabric lining and a snap closure, with no visible Coach creed or wordmark",
        "photos 1, 3, and 4: no legible COACH wordmark, horse-and-carriage, leather hangtag, or other Coach identifier is visible",
        "seller states faux leather and canvas, which is not the characteristic glove-tanned leather construction of classic vintage Coach",
        "photo 1,3,4: all-over geometric B-like woven print body, not Coach paired-C signature canvas",
        "photo 6: dark fabric lining, not unlined glove-tanned suede of vintage Coach classics",
        "seller states Faux Leather and Canvas and No Brand Noted - faux\/PU excludes vintage Coach glove-tanned",
        "photo 1,3,4: silver-tone hardware with thin shoulder strap and snap closure, no solid-brass turnlock geometry",
        "photo 1,3,4,5,6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible"
    ],
    "missing_information": [
        "photo 6: no straight-on close-up of every interior wall or pocket label\/seam tag",
        "photo 2: dimensions are provided, but no close-up of hardware markings or zipper\/pull stamps",
        "photo 5: bottom, corner, and strap-attachment details are not comprehensively shown",
        "seller-stated interior tear and unraveled pocket corner should be shown in close-up",
        "No creed patch visible in any photo - request straight-on interior back-wall\/pocket view to confirm absence",
        "No hardware engravings or brand stamps shown - request zipper\/pull\/buckle close-ups",
        "No hangtag or wordmark close-up shown",
        "No bottom\/corner close-ups to assess wear beyond seller-stated interior tear"
    ],
    "authenticity_concerns": [
        "photos 1 and 3: the repeated F-like motif appears to be a non-Coach or lookalike monogram rather than Coach Signature canvas",
        "photos 1 and 4: silver-tone hardware and synthetic\/faux construction are inconsistent with a classic vintage Coach leather bag",
        "photos 1-6: absence of any visible Coach identifier leaves no positive evidence of Coach manufacture"
    ],
    "possible_model_reasoning": [
        "The compact shoulder-bag silhouette is a generic late-1990s\/2000s-style accessory, but it does not closely match a documented Coach model based on the visible geometric monogram, fabric construction, and snap closure.",
        "Condition: Good; photos 1, 3, and 4 show intact exterior with some edge\/trim wear, while photo 6 shows interior wear; the seller additionally reports an interior tear and unraveled pocket corner.",
        "Small 9x4.25x1.75 in snap-flap shoulder bag does not match any vintage Coach catalog silhouette (City, Willis, Court, Station, Dinky) in closure, materials or print",
        "Materials (faux leather + logo canvas + fabric lining + silver hardware) point to modern fast-fashion, not 1970s-1990s glove-tanned Coach",
        "No Coach identifier visible in 6 photos including interior views; seller explicitly states No Brand Noted",
        "Condition: Good to Fair; seller states unnoticeable tear at base interior and unraveled corner of interior open pocket; exterior shows light wear but no close-up of corners\/bottom"
    ],
    "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, 4, and 6: silver-tone rings, snap\/closure hardware, and strap attachments; no Coach engraving is visible",
        "leather_description": "photos 1, 3, and 4: black synthetic-looking trim around patterned textile\/canvas panels; seller states faux leather and canvas",
        "lining_description": "photo 6: black fabric lining with an interior pocket and visible creasing; no brand label is visible",
        "strap_construction": "photos 1, 3, and 4: single narrow black strap attached at both sides; seller states it is not adjustable",
        "stitching_description": "photos 1, 4, and 5: perimeter stitching is visible but appears machine-made; no distinctive Coach construction can be established"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0017,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.04,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.07,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: bag uses an all-over geometric F-like monogram rather than Coach's paired-C Signature pattern or a plain vintage Coach leather construction",
                    "photo 1: silver-tone hardware and a narrow adjustable-looking strap are inconsistent with the typical solid-brass hardware of classic vintage Coach styles",
                    "photo 5: exposed interior appears fabric-lined, whereas many classic glove-tanned Coach bags are unlined suede-backed leather",
                    "photo 6: interior shows synthetic-looking fabric lining and a snap closure, with no visible Coach creed or wordmark",
                    "photos 1, 3, and 4: no legible COACH wordmark, horse-and-carriage, leather hangtag, or other Coach identifier is visible",
                    "seller states faux leather and canvas, which is not the characteristic glove-tanned leather construction of classic vintage Coach"
                ],
                "missing_information": [
                    "photo 6: no straight-on close-up of every interior wall or pocket label\/seam tag",
                    "photo 2: dimensions are provided, but no close-up of hardware markings or zipper\/pull stamps",
                    "photo 5: bottom, corner, and strap-attachment details are not comprehensively shown",
                    "seller-stated interior tear and unraveled pocket corner should be shown in close-up"
                ],
                "authenticity_concerns": [
                    "photos 1 and 3: the repeated F-like motif appears to be a non-Coach or lookalike monogram rather than Coach Signature canvas",
                    "photos 1 and 4: silver-tone hardware and synthetic\/faux construction are inconsistent with a classic vintage Coach leather bag",
                    "photos 1-6: absence of any visible Coach identifier leaves no positive evidence of 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, 4, and 6: silver-tone rings, snap\/closure hardware, and strap attachments; no Coach engraving is visible",
                    "leather_description": "photos 1, 3, and 4: black synthetic-looking trim around patterned textile\/canvas panels; seller states faux leather and canvas",
                    "lining_description": "photo 6: black fabric lining with an interior pocket and visible creasing; no brand label is visible",
                    "strap_construction": "photos 1, 3, and 4: single narrow black strap attached at both sides; seller states it is not adjustable",
                    "stitching_description": "photos 1, 4, and 5: perimeter stitching is visible but appears machine-made; no distinctive Coach construction can be established"
                },
                "possible_model_reasoning": [
                    "The compact shoulder-bag silhouette is a generic late-1990s\/2000s-style accessory, but it does not closely match a documented Coach model based on the visible geometric monogram, fabric construction, and snap closure.",
                    "Condition: Good; photos 1, 3, and 4 show intact exterior with some edge\/trim wear, while photo 6 shows interior wear; the seller additionally reports an interior tear and unraveled pocket corner."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 8,
                "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": 15,
                "estimated_resale_low": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "No creed patch visible in any photo - request straight-on interior back-wall\/pocket view to confirm absence",
                    "No hardware engravings or brand stamps shown - request zipper\/pull\/buckle close-ups",
                    "No hangtag or wordmark close-up shown",
                    "No bottom\/corner close-ups to assess wear beyond seller-stated interior tear"
                ],
                "negative_evidence": [
                    "photo 1,3,4: all-over geometric B-like woven print body, not Coach paired-C signature canvas",
                    "photo 6: dark fabric lining, not unlined glove-tanned suede of vintage Coach classics",
                    "seller states Faux Leather and Canvas and No Brand Noted - faux\/PU excludes vintage Coach glove-tanned",
                    "photo 1,3,4: silver-tone hardware with thin shoulder strap and snap closure, no solid-brass turnlock geometry",
                    "photo 1,3,4,5,6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone hardware; small buckle\/slider details at strap ends; snap closure visible in photo 6; no brass turnlock",
                    "leather_description": "seller states faux leather and canvas; photos show black faux-leather trim and strap with gray\/black geometric B-print canvas body",
                    "lining_description": "dark fabric lining visible in photo 5 and photo 6",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "edge stitching visible on trim and strap in photos 1,3,4; appears even but not examined in close-up; not_visible for detailed assessment",
                    "strap_construction": "single narrow shoulder strap, seller states not adjustable, attached with silver-tone rings\/buckles",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Small 9x4.25x1.75 in snap-flap shoulder bag does not match any vintage Coach catalog silhouette (City, Willis, Court, Station, Dinky) in closure, materials or print",
                    "Materials (faux leather + logo canvas + fabric lining + silver hardware) point to modern fast-fashion, not 1970s-1990s glove-tanned Coach",
                    "No Coach identifier visible in 6 photos including interior views; seller explicitly states No Brand Noted",
                    "Condition: Good to Fair; seller states unnoticeable tear at base interior and unraveled corner of interior open pocket; exterior shows light wear but no close-up of corners\/bottom"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18164,
            "output_tokens": 891,
            "total_tokens": 19055,
            "estimated_cost_usd": 0.009404
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18720,
            "output_tokens": 1329,
            "total_tokens": 20049,
            "estimated_cost_usd": 0.004807
        }
    ]
}