Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.14,
    "vintage_probability": 0.04,
    "authenticity_confidence": 0.095,
    "image_quality_score": 0.67,
    "seller_misidentification_probability": 0.145,
    "confidence": 0.695,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: structured leather- or faux-leather-looking shoulder-bag silhouette with a flap and turn-lock closure.",
        "photo 3: interior includes a zippered pocket and gold-tone hardware.",
        "photo 1-2: structured rectangular leather flap shoulder bag with center turnlock closure, a silhouette broadly shared with vintage and modern Coach flap bags",
        "photo 3: interior zip pocket under flap, consistent with many flap bags including Coach",
        "photo 1-3: clean edge finishing and even stitching, black colorway common for Coach"
    ],
    "negative_evidence": [
        "photo 1: chunky decorative gold-tone chain is not characteristic of the solid-brass strap construction used on classic vintage Coach bags.",
        "photo 1: turn-lock hardware appears small, bright, and highly polished rather than the wider, understated vintage Coach geometry.",
        "photo 3: fully fabric- or synthetic-lined interior and multiple structured compartments do not match the typical unlined suede-back construction of many classic vintage Coach styles.",
        "photos 1-3: no legible Coach wordmark, horse-and-carriage mark, hangtag, creed patch, or serial\/style number is visible.",
        "photo 1: smooth, highly uniform exterior and modern chain design are more consistent with a contemporary unbranded fashion bag.",
        "photo 1-3: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 1-2: chunky bright antique\/gold-tone chain shoulder strap with large lobster-type clips, not vintage Coach solid-brass dogleash clips, leather buckle-adjust strap or bead-chain hangtag",
        "photo 1-2: bright plated gold-tone turnlock, not dull solid-brass vintage turnlock geometry",
        "photo 3: lined interior with top zip pocket, not unlined suede-back glove-tanned classic interior",
        "photo 1-3: smooth uniform coated modern leather finish, no glove-tanned grain, patina, scars or wrinkles"
    ],
    "missing_information": [
        "A straight-on photo of the interior back wall and every interior pocket for a creed or fabric brand tag.",
        "Close-up photographs of the turn-lock, chain attachments, zipper pull, and any hardware markings.",
        "Photos of the bottom, corners, side gussets, strap attachment points, and full interior emptied.",
        "A close-up of any label or stamp hidden inside the bag.",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light (photo 3 shows interior but no creed visible)",
        "photo of any fabric tag in pocket seams and 'Made in' line",
        "photo of turnlock back plate, chain clasps and zipper pull stamps",
        "photos of back, sides, bottom corners and strap attachment points",
        "photo of hangtag both faces if present",
        "seller-stated dimensions already given; hand\/ruler for scale and confirmation of leather vs synthetic"
    ],
    "authenticity_concerns": [
        "The visible construction has no Coach identifier and is inconsistent with the classic vintage Coach leather-and-brass construction described in the reference.",
        "The decorative chain and bright gold-tone turn-lock suggest a contemporary Coach-style lookalike rather than a documented Coach model."
    ],
    "possible_model_reasoning": [
        "The flap, turn-lock, and approximate 10-inch width resemble the broad category of vintage Coach flap bags, but the chain strap, lined structured interior, and modern-looking hardware do not match a specific catalog model.",
        "No visible identifier supports a Coach model assignment; the bag is best treated as an unbranded contemporary shoulder bag.",
        "Condition: Like New to Excellent based on photos 1-3, with minimal visible exterior wear; bottom, corners, odor, and hidden interior areas are not fully documented.",
        "No Coach identifier visible so no ranked Coach model can be supported; silhouette is generic modern chain turnlock flap, not a specific catalog match like Dinky (9375), City Bag (9790), Court (9870) or Willis (9927) which use leather straps and solid-brass hardware",
        "Era reasoning: seller states less than a year old, plus lined interior, bright plated chain and smooth coated leather point to modern (2000s+) non-Coach manufacture, not pre-2000 glove-tanned era",
        "Condition: appears Like New to Excellent based on clean exterior and interior in photo 1-3, but capped because bottom corners, full interior, strap wear and odor\/mold cannot be assessed"
    ],
    "estimated_era": "modern (2000s+), non-Coach",
    "observed_features": {
        "creed_present": false,
        "serial_or_style_number_present": false,
        "coach_wordmark_present": false,
        "turnlock_present": true,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "Photos 1-3 show bright gold-tone hardware, a small oval turn-lock, and a chunky decorative chain with lobster-style attachments; no markings are legible.",
        "leather_description": "Photos 1-3 show a smooth, uniform black exterior that may be leather or synthetic; material cannot be confirmed from the photos.",
        "lining_description": "Photo 3 shows a black smooth-looking lining\/interior with a zippered pocket and structured compartments; exact material is not visible.",
        "strap_construction": "Photos 1-2 show a detachable gold-tone chain strap with round attachment rings and lobster-style clips; no leather shoulder section is visible.",
        "stitching_description": "Photos 1-3 show generally even perimeter stitching, though fine stitch quality and stress-point construction are not sufficiently close to assess."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0042,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.06,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.04,
                "image_quality_score": 0.74,
                "seller_misidentification_probability": 0.07,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: structured leather- or faux-leather-looking shoulder-bag silhouette with a flap and turn-lock closure.",
                    "photo 3: interior includes a zippered pocket and gold-tone hardware."
                ],
                "negative_evidence": [
                    "photo 1: chunky decorative gold-tone chain is not characteristic of the solid-brass strap construction used on classic vintage Coach bags.",
                    "photo 1: turn-lock hardware appears small, bright, and highly polished rather than the wider, understated vintage Coach geometry.",
                    "photo 3: fully fabric- or synthetic-lined interior and multiple structured compartments do not match the typical unlined suede-back construction of many classic vintage Coach styles.",
                    "photos 1-3: no legible Coach wordmark, horse-and-carriage mark, hangtag, creed patch, or serial\/style number is visible.",
                    "photo 1: smooth, highly uniform exterior and modern chain design are more consistent with a contemporary unbranded fashion bag."
                ],
                "missing_information": [
                    "A straight-on photo of the interior back wall and every interior pocket for a creed or fabric brand tag.",
                    "Close-up photographs of the turn-lock, chain attachments, zipper pull, and any hardware markings.",
                    "Photos of the bottom, corners, side gussets, strap attachment points, and full interior emptied.",
                    "A close-up of any label or stamp hidden inside the bag."
                ],
                "authenticity_concerns": [
                    "The visible construction has no Coach identifier and is inconsistent with the classic vintage Coach leather-and-brass construction described in the reference.",
                    "The decorative chain and bright gold-tone turn-lock suggest a contemporary Coach-style lookalike rather than a documented Coach model."
                ],
                "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": true,
                    "hangtag_present": false,
                    "hardware_description": "Photos 1-3 show bright gold-tone hardware, a small oval turn-lock, and a chunky decorative chain with lobster-style attachments; no markings are legible.",
                    "leather_description": "Photos 1-3 show a smooth, uniform black exterior that may be leather or synthetic; material cannot be confirmed from the photos.",
                    "lining_description": "Photo 3 shows a black smooth-looking lining\/interior with a zippered pocket and structured compartments; exact material is not visible.",
                    "strap_construction": "Photos 1-2 show a detachable gold-tone chain strap with round attachment rings and lobster-style clips; no leather shoulder section is visible.",
                    "stitching_description": "Photos 1-3 show generally even perimeter stitching, though fine stitch quality and stress-point construction are not sufficiently close to assess."
                },
                "possible_model_reasoning": [
                    "The flap, turn-lock, and approximate 10-inch width resemble the broad category of vintage Coach flap bags, but the chain strap, lined structured interior, and modern-looking hardware do not match a specific catalog model.",
                    "No visible identifier supports a Coach model assignment; the bag is best treated as an unbranded contemporary shoulder bag.",
                    "Condition: Like New to Excellent based on photos 1-3, with minimal visible exterior wear; bottom, corners, odor, and hidden interior areas are not fully documented."
                ],
                "confidence": 0.79,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.15,
                "coach_probability": 0.22,
                "confidence": 0.6,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light (photo 3 shows interior but no creed visible)",
                    "photo of any fabric tag in pocket seams and 'Made in' line",
                    "photo of turnlock back plate, chain clasps and zipper pull stamps",
                    "photos of back, sides, bottom corners and strap attachment points",
                    "photo of hangtag both faces if present",
                    "seller-stated dimensions already given; hand\/ruler for scale and confirmation of leather vs synthetic"
                ],
                "negative_evidence": [
                    "photo 1-3: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 1-2: chunky bright antique\/gold-tone chain shoulder strap with large lobster-type clips, not vintage Coach solid-brass dogleash clips, leather buckle-adjust strap or bead-chain hangtag",
                    "photo 1-2: bright plated gold-tone turnlock, not dull solid-brass vintage turnlock geometry",
                    "photo 3: lined interior with top zip pocket, not unlined suede-back glove-tanned classic interior",
                    "photo 1-3: smooth uniform coated modern leather finish, no glove-tanned grain, patina, scars or wrinkles"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone turnlock flap closure and chunky antique\/brushed gold-tone chain shoulder strap with hook clips; bright plated appearance, not dull solid brass; turnlock front oval in photo 1-2, keeper post and zipper teeth visible in photo 3",
                    "leather_description": "black smooth-finish exterior, uniform and structured, modern coated appearance in photo 1-3; no visible glove-tanned grain or patina",
                    "lining_description": "dark interior partially visible in photo 3 with zippered pocket; full lining material not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight edge stitching around flap visible in photo 1-3, tone-matched; no close-up to assess further",
                    "strap_construction": "detachable chunky gold-tone chain shoulder strap attached at side rings, seller states 18 inch drop; no leather shoulder strap shown",
                    "turnlock_present": true
                },
                "positive_evidence": [
                    "photo 1-2: structured rectangular leather flap shoulder bag with center turnlock closure, a silhouette broadly shared with vintage and modern Coach flap bags",
                    "photo 3: interior zip pocket under flap, consistent with many flap bags including Coach",
                    "photo 1-3: clean edge finishing and even stitching, black colorway common for Coach"
                ],
                "possible_model_reasoning": [
                    "No Coach identifier visible so no ranked Coach model can be supported; silhouette is generic modern chain turnlock flap, not a specific catalog match like Dinky (9375), City Bag (9790), Court (9870) or Willis (9927) which use leather straps and solid-brass hardware",
                    "Era reasoning: seller states less than a year old, plus lined interior, bright plated chain and smooth coated leather point to modern (2000s+) non-Coach manufacture, not pre-2000 glove-tanned era",
                    "Condition: appears Like New to Excellent based on clean exterior and interior in photo 1-3, but capped because bottom corners, full interior, strap wear and odor\/mold cannot be assessed"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.22,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16767,
            "output_tokens": 854,
            "total_tokens": 17621,
            "estimated_cost_usd": 0.008756
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17187,
            "output_tokens": 1516,
            "total_tokens": 18703,
            "estimated_cost_usd": 0.00465
        }
    ]
}