Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.04,
    "vintage_probability": 0.19,
    "authenticity_confidence": 0.035,
    "image_quality_score": 0.66,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.73,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather handbag with a kiss-lock frame and detachable-looking shoulder strap is visible.",
        "photo 1: the frame silhouette is broadly compatible with vintage frame bags, including some early Coach designs."
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, serial\/style number, or hangtag.",
        "photo 1: bright silver-tone frame and hardware are not typical of the solid brass hardware commonly seen on classic vintage Coach frame bags.",
        "photo 1: the highly symmetrical center seam, glossy-looking leather, and generic kiss-lock construction provide no distinctive Coach identification.",
        "photo 1: seller title calls the bag black, while the visible exterior appears brown\/cognac, reducing listing reliability.",
        "photo 1: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 1: dark gunmetal-tone kisslock frame, not vintage Coach solid brass turnlock geometry",
        "photo 1: thin smooth coated-looking brown material with white contrast center stitching, not glove-tanned cowhide with matched thread",
        "photo 1: modern dual-strap configuration with short top handle on clips plus crossbody strap, not a catalog Cashin kisslock silhouette"
    ],
    "missing_information": [
        "Interior view, especially any sewn-in creed patch or fabric label.",
        "Straight-on close-up of all interior pockets and seams.",
        "Close-ups of the kiss-lock, strap attachments, and any zipper or hardware stamps.",
        "Bottom, side, and back views, including corners and strap condition.",
        "Seller-stated dimensions and material information.",
        "photo 1 only: no interior, creed, bottom, side, or hardware close-up views",
        "lining material and interior layout not shown",
        "hardware brand stamps not shown"
    ],
    "authenticity_concerns": [
        "photo 1: generic frame-bag construction and silver-tone hardware are consistent with an unbranded lookalike rather than identifiable Coach manufacture.",
        "No Coach identifiers are visible in the only provided photo; authenticity cannot be meaningfully supported."
    ],
    "possible_model_reasoning": [
        "photo 1: the kiss-lock frame could superficially resemble a vintage frame or kisslock bag, but no Coach-specific model features or identifiers are visible.",
        "photo 1: the silver-tone hardware and generic frame silhouette do not support a specific Coach catalog match.",
        "Condition: front appears generally intact with light surface creasing, but the interior, bottom, and strap attachment condition are not shown; condition cannot be fully graded.",
        "photo 1 shows a modern kisslock frame crossbody with gunmetal hardware and contrast stitching with no Coach identifiers, so no Coach model match; Condition: appears new-like in catalog-style photo but only one exterior view, no interior or bottom shown"
    ],
    "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: rectangular metal kiss-lock frame with paired spherical knobs and silver-tone strap fittings; no brand engraving is legible.",
        "leather_description": "photo 1: brown\/cognac-colored leather or leather-like material with a smooth, somewhat glossy surface and prominent central seam; exact material is not confirmed.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: narrow brown shoulder strap attached through metal swivel-style fittings; construction and adjustability are not fully visible.",
        "stitching_description": "photo 1: contrasting light stitching is visible along the central front seam and on portions of the strap; other stitching is not visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0067,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.06,
                "vintage_probability": 0.35,
                "authenticity_confidence": 0.05,
                "image_quality_score": 0.72,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather handbag with a kiss-lock frame and detachable-looking shoulder strap is visible.",
                    "photo 1: the frame silhouette is broadly compatible with vintage frame bags, including some early Coach designs."
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, serial\/style number, or hangtag.",
                    "photo 1: bright silver-tone frame and hardware are not typical of the solid brass hardware commonly seen on classic vintage Coach frame bags.",
                    "photo 1: the highly symmetrical center seam, glossy-looking leather, and generic kiss-lock construction provide no distinctive Coach identification.",
                    "photo 1: seller title calls the bag black, while the visible exterior appears brown\/cognac, reducing listing reliability."
                ],
                "missing_information": [
                    "Interior view, especially any sewn-in creed patch or fabric label.",
                    "Straight-on close-up of all interior pockets and seams.",
                    "Close-ups of the kiss-lock, strap attachments, and any zipper or hardware stamps.",
                    "Bottom, side, and back views, including corners and strap condition.",
                    "Seller-stated dimensions and material information."
                ],
                "authenticity_concerns": [
                    "photo 1: generic frame-bag construction and silver-tone hardware are consistent with an unbranded lookalike rather than identifiable Coach manufacture.",
                    "No Coach identifiers are visible in the only provided photo; authenticity cannot be meaningfully supported."
                ],
                "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: rectangular metal kiss-lock frame with paired spherical knobs and silver-tone strap fittings; no brand engraving is legible.",
                    "leather_description": "photo 1: brown\/cognac-colored leather or leather-like material with a smooth, somewhat glossy surface and prominent central seam; exact material is not confirmed.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: narrow brown shoulder strap attached through metal swivel-style fittings; construction and adjustability are not fully visible.",
                    "stitching_description": "photo 1: contrasting light stitching is visible along the central front seam and on portions of the strap; other stitching is not visible."
                },
                "possible_model_reasoning": [
                    "photo 1: the kiss-lock frame could superficially resemble a vintage frame or kisslock bag, but no Coach-specific model features or identifiers are visible.",
                    "photo 1: the silver-tone hardware and generic frame silhouette do not support a specific Coach catalog match.",
                    "Condition: front appears generally intact with light surface creasing, but the interior, bottom, and strap attachment condition are not shown; condition cannot be fully graded."
                ],
                "confidence": 0.61,
                "recommended_max_bid": 15,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1 only: no interior, creed, bottom, side, or hardware close-up views",
                    "lining material and interior layout not shown",
                    "hardware brand stamps not shown"
                ],
                "negative_evidence": [
                    "photo 1: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 1: dark gunmetal-tone kisslock frame, not vintage Coach solid brass turnlock geometry",
                    "photo 1: thin smooth coated-looking brown material with white contrast center stitching, not glove-tanned cowhide with matched thread",
                    "photo 1: modern dual-strap configuration with short top handle on clips plus crossbody strap, not a catalog Cashin kisslock silhouette"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "dark gunmetal-tone kisslock frame with ball clasps, frame-mounted rings and clips",
                    "leather_description": "smooth tan-brown material with wrinkled coated appearance, center seam; looks like modern split or synthetic, not glove-tanned full-grain",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "white contrast double-row center seam stitching, even but mismatched to body",
                    "strap_construction": "short rolled top handle on metal clips plus longer flat crossbody shoulder strap with buckle adjustment visible on side",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "photo 1 shows a modern kisslock frame crossbody with gunmetal hardware and contrast stitching with no Coach identifiers, so no Coach model match; Condition: appears new-like in catalog-style photo but only one exterior view, no interior or bottom shown"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16826,
            "output_tokens": 754,
            "total_tokens": 17580,
            "estimated_cost_usd": 0.00854
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17225,
            "output_tokens": 953,
            "total_tokens": 18178,
            "estimated_cost_usd": 0.004207
        }
    ]
}