Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.05,
    "vintage_probability": 0.2,
    "authenticity_confidence": 0.05,
    "image_quality_score": 0.735,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.815,
    "recommended_max_bid": 15,
    "estimated_resale_low": 20,
    "estimated_resale_high": 52.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: substantial brown leather handbag with brass-tone buckles and an adjustable crossbody strap, a construction type that can occur among vintage leather bags",
        "photo 1, photo 3, photo 4: leather handbag with brass-tone hardware in brown, general population where misidentified Coach could hide"
    ],
    "negative_evidence": [
        "photo 1: front closure is a strap-and-buckle arrangement rather than a recognizable Coach turnlock or other Coach-specific closure",
        "photo 1: no visible COACH wordmark, horse-and-carriage, or leather hangtag",
        "photo 2: interior is fabric-lined and no Coach creed patch is visible",
        "photo 3: broad structured body, decorative strapwork, and buckle detailing do not closely match the listed classic Coach silhouettes",
        "photo 4: exposed side construction and riveted strap attachment appear generic\/handmade rather than clearly Coach-specific",
        "photo 1: front buckle-and-strap closure, no turnlock with Coach geometry present",
        "photo 2: bright green woven canvas lining, not unlined glove-tanned suede interior of vintage Coach classics",
        "photo 1, photo 4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 4: strap riveted to body with brass rivets and X-stitched tab, not Coach dogleash\/lobster or buckle-adjust construction",
        "photo 1, photo 3: distressed brown leather with contrast tan stitching and wrapped-edge construction unlike Coach glove-tanned finish and tone-on-tone stitching"
    ],
    "missing_information": [
        "Straight-on close-up of every interior wall and pocket, especially any leather creed patch",
        "Close-ups of all interior labels, fabric tags, zipper pulls, and hardware markings",
        "Bottom, back, and opposite-side photos",
        "Seller-stated dimensions and a photo showing scale",
        "photo 2 shows interior but no creed patch visible; creed close-up still needed to be exhaustive",
        "no hangtag views (front\/back) to check for COACH stamp",
        "no hardware engraving close-up (buckles, rivets, zipper pull)"
    ],
    "authenticity_concerns": [
        "The bag lacks any visible Coach identifier and has a generic decorative leather-and-buckle design; it is more consistent with an unbranded handmade or lookalike leather bag than a Coach product",
        "The fabric lining and visible construction do not provide the expected supporting evidence for a classic glove-tanned Coach handbag"
    ],
    "possible_model_reasoning": [
        "No listed Coach model is a close enough match to recommend. The strap-and-buckle flap, decorative central strap, and fabric-lined construction are generic and do not establish a Coach model.",
        "Condition: Good to Very Good visually; leather shows creasing and wear, but no obvious holes or broken hardware are visible. Bottom, interior details, odor, and strap stress points are incompletely documented.",
        "No Coach model fits: buckle-front saddle silhouette with green canvas lining and riveted strap does not match City Bag (9790), Court (9870), Willis (9927), Station (5130) or other turnlock classics",
        "Era reasoning: construction, lining, and handmade-style finish indicate modern non-Coach handmade bag, not any Coach creed era",
        "Condition: appears Like New to Excellent in photos with no major wear shown, but interior\/exterior coverage incomplete so grade capped"
    ],
    "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": "Brass-tone buckles, rectangular strap hardware, and rivets are visible; no Coach engraving is legible.",
        "leather_description": "Brown leather or leather-like material with visible grain, creasing, and tonal variation; exact leather type is not determinable from photos.",
        "lining_description": "Green fabric lining is visible in the interior; no creed or label is visible.",
        "strap_construction": "Wide adjustable crossbody strap with buckle adjustment and riveted side attachment.",
        "stitching_description": "Visible contrast stitching is generally even, with multiple decorative stitched leather layers; detailed stress-point construction is not fully shown."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0047,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.08,
                "vintage_probability": 0.35,
                "authenticity_confidence": 0.07,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: substantial brown leather handbag with brass-tone buckles and an adjustable crossbody strap, a construction type that can occur among vintage leather bags"
                ],
                "negative_evidence": [
                    "photo 1: front closure is a strap-and-buckle arrangement rather than a recognizable Coach turnlock or other Coach-specific closure",
                    "photo 1: no visible COACH wordmark, horse-and-carriage, or leather hangtag",
                    "photo 2: interior is fabric-lined and no Coach creed patch is visible",
                    "photo 3: broad structured body, decorative strapwork, and buckle detailing do not closely match the listed classic Coach silhouettes",
                    "photo 4: exposed side construction and riveted strap attachment appear generic\/handmade rather than clearly Coach-specific"
                ],
                "missing_information": [
                    "Straight-on close-up of every interior wall and pocket, especially any leather creed patch",
                    "Close-ups of all interior labels, fabric tags, zipper pulls, and hardware markings",
                    "Bottom, back, and opposite-side photos",
                    "Seller-stated dimensions and a photo showing scale"
                ],
                "authenticity_concerns": [
                    "The bag lacks any visible Coach identifier and has a generic decorative leather-and-buckle design; it is more consistent with an unbranded handmade or lookalike leather bag than a Coach product",
                    "The fabric lining and visible construction do not provide the expected supporting evidence for a classic glove-tanned Coach handbag"
                ],
                "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": "Brass-tone buckles, rectangular strap hardware, and rivets are visible; no Coach engraving is legible.",
                    "leather_description": "Brown leather or leather-like material with visible grain, creasing, and tonal variation; exact leather type is not determinable from photos.",
                    "lining_description": "Green fabric lining is visible in the interior; no creed or label is visible.",
                    "strap_construction": "Wide adjustable crossbody strap with buckle adjustment and riveted side attachment.",
                    "stitching_description": "Visible contrast stitching is generally even, with multiple decorative stitched leather layers; detailed stress-point construction is not fully shown."
                },
                "possible_model_reasoning": [
                    "No listed Coach model is a close enough match to recommend. The strap-and-buckle flap, decorative central strap, and fabric-lined construction are generic and do not establish a Coach model.",
                    "Condition: Good to Very Good visually; leather shows creasing and wear, but no obvious holes or broken hardware are visible. Bottom, interior details, odor, and strap stress points are incompletely documented."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 15,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 45,
                "estimated_resale_low": 20,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 2 shows interior but no creed patch visible; creed close-up still needed to be exhaustive",
                    "no hangtag views (front\/back) to check for COACH stamp",
                    "no hardware engraving close-up (buckles, rivets, zipper pull)"
                ],
                "negative_evidence": [
                    "photo 1: front buckle-and-strap closure, no turnlock with Coach geometry present",
                    "photo 2: bright green woven canvas lining, not unlined glove-tanned suede interior of vintage Coach classics",
                    "photo 1, photo 4: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 4: strap riveted to body with brass rivets and X-stitched tab, not Coach dogleash\/lobster or buckle-adjust construction",
                    "photo 1, photo 3: distressed brown leather with contrast tan stitching and wrapped-edge construction unlike Coach glove-tanned finish and tone-on-tone stitching"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone buckles on front strap and shoulder strap; round rivets at side strap anchors; small zipper slider inside; no COACH engraving visible",
                    "leather_description": "medium-brown distressed smooth leather with wrinkling and color variation, saddle-bag shape with double flap",
                    "lining_description": "green woven canvas\/textile lining on flap underside and interior, with interior zip pocket",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "contrast tan\/gold stitching around flap edges and strap, even but contrasting color",
                    "strap_construction": "wide flat crossbody strap, buckle-adjustable at front, riveted fixed attachment at sides (photo 4)",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1, photo 3, photo 4: leather handbag with brass-tone hardware in brown, general population where misidentified Coach could hide"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: buckle-front saddle silhouette with green canvas lining and riveted strap does not match City Bag (9790), Court (9870), Willis (9927), Station (5130) or other turnlock classics",
                    "Era reasoning: construction, lining, and handmade-style finish indicate modern non-Coach handmade bag, not any Coach creed era",
                    "Condition: appears Like New to Excellent in photos with no major wear shown, but interior\/exterior coverage incomplete so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 21763,
            "output_tokens": 780,
            "total_tokens": 22543,
            "estimated_cost_usd": 0.010577
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 22602,
            "output_tokens": 1173,
            "total_tokens": 23775,
            "estimated_cost_usd": 0.005459
        }
    ]
}