Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.035,
    "vintage_probability": 0.115,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.72,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.78,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: medium genuine-leather shoulder bag - leather material alone is non-diagnostic and shared by many makers including Coach"
    ],
    "negative_evidence": [
        "photo 1: leather shoulder handbag is clearly shown, but no COACH wordmark, horse-and-carriage, creed patch, or recognizable Coach hardware is visible",
        "photos 1-6: prominent gold-tone rings, studs, black contrast straps, and a multi-pocket equestrian\/utility design do not match the typical restrained construction of vintage Coach classics",
        "photos 1-6: the bag appears fabric-lined or otherwise has a finished interior, while many comparable vintage glove-tanned Coach classics are unlined suede-backed leather",
        "photos 1-6: extensive contrast black strap and harness detailing is a lookalike-style cue rather than a specific Coach identifier",
        "photo 4: visible rear zip pocket and construction provide no Coach-specific branding",
        "photo 1-5: no turnlock of any geometry visible; closure is open top with flap pocket + ring tabs, not Coach turnlock flap",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible on exterior, strap, or top-view interior",
        "photo 1-5: large gold-tone O-ring \/ moto-boho strap assembly with two-tone cognac + dark chocolate straps and exposed studs\/rivets - not a Coach classic silhouette or hardware vocabulary",
        "photo 4: full-width exterior rear zip pocket with small leather pull - inconsistent with unlined 1970s-1990s Coach classics",
        "photo 6: top view shows multiple compartments \/ zips, no suede-back unlined glove-tanned interior or creed patch visible",
        "seller text describes vibrant striped interior - photo 6 does not show it and striped poly lining would be inconsistent with vintage unlined Coach classics"
    ],
    "missing_information": [
        "photo 1-6: no straight-on close-up of any interior brand label or leather creed patch",
        "photo 1-6: no close-up of zipper pulls, buckles, or hardware markings",
        "photo 1-6: interior is only partially visible; lining material and any sewn-in label remain unknown",
        "photo 1-6: seller-stated dimensions and country of manufacture are not provided",
        "photo of interior wall \/ slip pocket where creed would sit and any fabric \/ leather brand patch - not shown",
        "straight-on creed \/ made-in stamp if any - not shown",
        "hardware brand stamps on zipper pull, buckles, rings - not shown",
        "hangtag both faces if any - not shown",
        "bottom and corner close-ups to confirm condition"
    ],
    "authenticity_concerns": [
        "photos 1-6: no Coach identifiers are visible, so the bag should be treated as a generic leather bag rather than a hidden vintage Coach",
        "photos 1-6: bold ring hardware and black harness-style trim may indicate a fashion-brand or unbranded Coach-style lookalike; silhouette alone cannot support Coach attribution"
    ],
    "possible_model_reasoning": [
        "The multi-pocket shoulder-bag silhouette and ring\/harness detailing do not closely match the listed classic Coach models; no Coach model is proposed without an identifier.",
        "Estimated modern era is based on the extensive finished lining, multiple zippers, contrast harness trim, and fashion-oriented hardware; no date code is visible.",
        "Condition appears Very Good to Excellent from the visible exterior: light creasing and natural surface variation are present, with no obvious tears or major corner failure in photos 1-6; bottom and interior condition are incompletely shown.",
        "No Coach catalog match: ring-link moto\/boho two-tone flap-pocket shoulder bag does not correspond to City Bag (9790), Willis (9927), Court (9870), Station (5130), Duffle Sac (9085) or other 1970s-2000s classics in silhouette, closure, strap or hardware",
        "No hard identifiers: no creed, serial, wordmark, carriage, or hangtag visible in any of 6 photos to decode era or origin",
        "Construction read is modern fashion, not vintage Coach: fashion O-rings, contrast straps, exterior zip pocket, seller-described striped lining vs unlined suede-back glove-tanned + solid brass turnlock expected for NYC\/US classics",
        "Condition: Excellent to Very Good based on exterior only - leather supple with light character (photo 1,4), hardware bright (photo 3,5); interior, bottom corners, and strap fold not shown so 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": "photos 1-6: numerous gold-tone circular rings, buckles, rivets, snaps, and zipper hardware; no visible COACH engraving; hardware appears decorative and harness-inspired",
        "leather_description": "photos 1-6: tan\/cognac leather or leather-like material with darker brown-black contrast trim; visible natural creasing and light surface variation",
        "lining_description": "photo 6: open top shows a brown finished interior, but the lining composition and any label are not legible",
        "strap_construction": "photos 1-6: wide adjustable black contrast shoulder straps with buckles, rings, riveted attachments, and multiple strap sections",
        "stitching_description": "photos 1-5: generally visible, straight double-row stitching around panels and pockets; no obvious Coach-specific construction detail"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0017,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.04,
                "vintage_probability": 0.08,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: leather shoulder handbag is clearly shown, but no COACH wordmark, horse-and-carriage, creed patch, or recognizable Coach hardware is visible",
                    "photos 1-6: prominent gold-tone rings, studs, black contrast straps, and a multi-pocket equestrian\/utility design do not match the typical restrained construction of vintage Coach classics",
                    "photos 1-6: the bag appears fabric-lined or otherwise has a finished interior, while many comparable vintage glove-tanned Coach classics are unlined suede-backed leather",
                    "photos 1-6: extensive contrast black strap and harness detailing is a lookalike-style cue rather than a specific Coach identifier",
                    "photo 4: visible rear zip pocket and construction provide no Coach-specific branding"
                ],
                "missing_information": [
                    "photo 1-6: no straight-on close-up of any interior brand label or leather creed patch",
                    "photo 1-6: no close-up of zipper pulls, buckles, or hardware markings",
                    "photo 1-6: interior is only partially visible; lining material and any sewn-in label remain unknown",
                    "photo 1-6: seller-stated dimensions and country of manufacture are not provided"
                ],
                "authenticity_concerns": [
                    "photos 1-6: no Coach identifiers are visible, so the bag should be treated as a generic leather bag rather than a hidden vintage Coach",
                    "photos 1-6: bold ring hardware and black harness-style trim may indicate a fashion-brand or unbranded Coach-style lookalike; silhouette alone cannot support 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": "photos 1-6: numerous gold-tone circular rings, buckles, rivets, snaps, and zipper hardware; no visible COACH engraving; hardware appears decorative and harness-inspired",
                    "leather_description": "photos 1-6: tan\/cognac leather or leather-like material with darker brown-black contrast trim; visible natural creasing and light surface variation",
                    "lining_description": "photo 6: open top shows a brown finished interior, but the lining composition and any label are not legible",
                    "strap_construction": "photos 1-6: wide adjustable black contrast shoulder straps with buckles, rings, riveted attachments, and multiple strap sections",
                    "stitching_description": "photos 1-5: generally visible, straight double-row stitching around panels and pockets; no obvious Coach-specific construction detail"
                },
                "possible_model_reasoning": [
                    "The multi-pocket shoulder-bag silhouette and ring\/harness detailing do not closely match the listed classic Coach models; no Coach model is proposed without an identifier.",
                    "Estimated modern era is based on the extensive finished lining, multiple zippers, contrast harness trim, and fashion-oriented hardware; no date code is visible.",
                    "Condition appears Very Good to Excellent from the visible exterior: light creasing and natural surface variation are present, with no obvious tears or major corner failure in photos 1-6; bottom and interior condition are incompletely shown."
                ],
                "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": 0.03,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.62,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of interior wall \/ slip pocket where creed would sit and any fabric \/ leather brand patch - not shown",
                    "straight-on creed \/ made-in stamp if any - not shown",
                    "hardware brand stamps on zipper pull, buckles, rings - not shown",
                    "hangtag both faces if any - not shown",
                    "bottom and corner close-ups to confirm condition"
                ],
                "negative_evidence": [
                    "photo 1-5: no turnlock of any geometry visible; closure is open top with flap pocket + ring tabs, not Coach turnlock flap",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible on exterior, strap, or top-view interior",
                    "photo 1-5: large gold-tone O-ring \/ moto-boho strap assembly with two-tone cognac + dark chocolate straps and exposed studs\/rivets - not a Coach classic silhouette or hardware vocabulary",
                    "photo 4: full-width exterior rear zip pocket with small leather pull - inconsistent with unlined 1970s-1990s Coach classics",
                    "photo 6: top view shows multiple compartments \/ zips, no suede-back unlined glove-tanned interior or creed patch visible",
                    "seller text describes vibrant striped interior - photo 6 does not show it and striped poly lining would be inconsistent with vintage unlined Coach classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "large gold-tone O-rings at strap attachments and front flap tabs, rectangular roller buckles on shoulder strap, silver and brass-tone studs\/rivets; bright plated fashion hardware, not solid vintage brass turnlock \/ dogleash hardware",
                    "leather_description": "soft slouchy smooth leather in cognac tan with dark chocolate brown contrast straps and trim; light surface character but no glove-tanned patina diagnostic of Coach visible",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight topstitching, tone-matched, visible along top edge and flap pocket; no irregularity noted but not close-up enough to assess fully",
                    "strap_construction": "wide dark brown flat shoulder strap, buckle-adjustable, attached via large O-rings to side tabs; additional ring-tab details on sides and front",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: medium genuine-leather shoulder bag - leather material alone is non-diagnostic and shared by many makers including Coach"
                ],
                "possible_model_reasoning": [
                    "No Coach catalog match: ring-link moto\/boho two-tone flap-pocket shoulder bag does not correspond to City Bag (9790), Willis (9927), Court (9870), Station (5130), Duffle Sac (9085) or other 1970s-2000s classics in silhouette, closure, strap or hardware",
                    "No hard identifiers: no creed, serial, wordmark, carriage, or hangtag visible in any of 6 photos to decode era or origin",
                    "Construction read is modern fashion, not vintage Coach: fashion O-rings, contrast straps, exterior zip pocket, seller-described striped lining vs unlined suede-back glove-tanned + solid brass turnlock expected for NYC\/US classics",
                    "Condition: Excellent to Very Good based on exterior only - leather supple with light character (photo 1,4), hardware bright (photo 3,5); interior, bottom corners, and strap fold not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.15
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17851,
            "output_tokens": 852,
            "total_tokens": 18703,
            "estimated_cost_usd": 0.009185
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18195,
            "output_tokens": 1552,
            "total_tokens": 19747,
            "estimated_cost_usd": 0.004881
        }
    ]
}