Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.36,
    "vintage_probability": 0.555,
    "authenticity_confidence": 0.285,
    "image_quality_score": 0.585,
    "seller_misidentification_probability": 0.565,
    "confidence": 0.57,
    "recommended_max_bid": 22.5,
    "estimated_resale_low": 20,
    "estimated_resale_high": 67.5,
    "possible_models": [
        "Soho Zip Hobo (4161)",
        "Legacy Shoulder (9164)"
    ],
    "positive_evidence": [
        "photo 1: substantial brown leather shoulder bag with structured side seams and substantial stitched strap construction",
        "photo 4: interior appears dark and may be suede or leather, which is compatible with some vintage leather bags",
        "photo 2: generally even, close stitching is visible along the body and strap edges",
        "photo 1-3: smooth tan glove-tanned-like leather with baseball-glove patina and unlined look typical of vintage Coach classics",
        "photo 4: unlined suede-like interior with zip pocket matches classic Coach interior layout",
        "photo 2-3: simple zip-top hobo \/ shoulder silhouette with dimensions 13x10x5 in compatible with Coach 1990s hobo types",
        "photo 1-2: even tone-on-tone stitching and riveted strap anchors; no logo print, nylon, PVC, or plastic hardware"
    ],
    "negative_evidence": [
        "photo 1: no visible Coach wordmark, horse-and-carriage, hangtag, or creed patch",
        "photo 2: exterior construction and strap attachment are generic and do not clearly match a documented vintage Coach silhouette",
        "photo 4: zipper and interior details are visible, but no Coach identifier is shown",
        "seller description: 'silver tone hardware' is not typical evidence for a classic 1970s\u2013early-1990s Coach bag, which more commonly used solid brass hardware",
        "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or hangtag legible",
        "photo 1-3: no turnlock or classic Coach closure visible; zip-top hobo silhouette alone is widely copied",
        "photo 1-2: seller describes silver-tone hardware but visible rivets and zip teeth read brass-tone; tone cannot be confirmed in this light"
    ],
    "missing_information": [
        "Straight-on photo of the entire interior back wall and every interior pocket to check for a creed patch",
        "Close-up photos of all hardware, zipper pull, strap attachments, and any embossed markings",
        "Clear photo of the front and closure area",
        "Photo of the bag emptied and fully opened in brighter lighting",
        "Close-up of any interior fabric or leather labels",
        "photo of creed patch straight-on in raking light and interior back wall \/ slip pocket where creed sits",
        "photo of hangtag both faces and chain if present",
        "photo of front, zipper pull brand stamp and hardware close-ups",
        "photo of strap full length, buckle holes and clip ends",
        "seller-stated dimensions already given; request hand-for-scale and confirmation of lining material"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible, so the bag currently reads more like a generic leather shoulder bag than an identifiable Coach model",
        "The apparent silver-tone or mixed-tone hardware would be inconsistent with many classic vintage Coach constructions if confirmed",
        "Seller's vintage description is unverified by the visible identifiers and cannot establish Coach manufacture",
        "photo 1-4: no creed, wordmark, or other Coach identifier visible to verify maker; consistency cannot be checked",
        "photo 4: interior view is dark and blurry so creed patch if present could be missed"
    ],
    "possible_model_reasoning": [
        "The approximate 13-inch width and 5-inch depth describe a medium-to-large shoulder bag, but the silhouette does not provide a reliable match to a specific Coach catalog model.",
        "The visible zipper-top, curved body and strap-tab construction could fit multiple generic leather shoulder bags; no style number or creed is available for model confirmation.",
        "Condition: Good; visible creasing, scratches, stains or discoloration on the body (photos 1-2), with the bottom showing wear and marks (photo 3). Interior condition and odor are unknown.",
        "Zip-top unlined hobo with 13x10x5 in size closest to Soho Zip Hobo (4161) 12x8x3 and Legacy Zip-Top Hobo (9059) \/ Legacy Shoulder types; no closure, creed, or hardware detail to distinguish, so identification is low confidence",
        "Era cannot be coded without creed\/serial\/country; construction suggests vintage glove-tanned era if Coach, but label remains unknown",
        "Condition: Good to Very Good; photo 1-2: exterior creasing, stain marks, scratches and dark spots noted by seller; photo 3: bottom intact with edge wear; photo 4: interior not assessable due to darkness, lining unknown, cap grade"
    ],
    "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: strap hardware and buckles are partially visible; metal finish is not consistently clear, and no branding is legible",
        "leather_description": "photo 1: smooth brown leather with visible creasing and surface marks; appears moderately glossy rather than clearly glove-tanned",
        "lining_description": "photo 4: dark interior is visible with a zippered opening; lining material and any label are not reliably discernible",
        "strap_construction": "photos 1-2: wide adjustable shoulder strap attached through stitched leather tabs with metal hardware; full strap and attachment details are not shown",
        "stitching_description": "photos 1-2: mostly straight, machine stitching visible along edges and seams; no distinctive Coach construction feature can be confirmed"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0096,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.27,
                "vintage_probability": 0.46,
                "authenticity_confidence": 0.22,
                "image_quality_score": 0.72,
                "seller_misidentification_probability": 0.68,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: substantial brown leather shoulder bag with structured side seams and substantial stitched strap construction",
                    "photo 4: interior appears dark and may be suede or leather, which is compatible with some vintage leather bags",
                    "photo 2: generally even, close stitching is visible along the body and strap edges"
                ],
                "negative_evidence": [
                    "photo 1: no visible Coach wordmark, horse-and-carriage, hangtag, or creed patch",
                    "photo 2: exterior construction and strap attachment are generic and do not clearly match a documented vintage Coach silhouette",
                    "photo 4: zipper and interior details are visible, but no Coach identifier is shown",
                    "seller description: 'silver tone hardware' is not typical evidence for a classic 1970s\u2013early-1990s Coach bag, which more commonly used solid brass hardware"
                ],
                "missing_information": [
                    "Straight-on photo of the entire interior back wall and every interior pocket to check for a creed patch",
                    "Close-up photos of all hardware, zipper pull, strap attachments, and any embossed markings",
                    "Clear photo of the front and closure area",
                    "Photo of the bag emptied and fully opened in brighter lighting",
                    "Close-up of any interior fabric or leather labels"
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible, so the bag currently reads more like a generic leather shoulder bag than an identifiable Coach model",
                    "The apparent silver-tone or mixed-tone hardware would be inconsistent with many classic vintage Coach constructions if confirmed",
                    "Seller's vintage description is unverified by the visible identifiers and cannot establish 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": "photo 1: strap hardware and buckles are partially visible; metal finish is not consistently clear, and no branding is legible",
                    "leather_description": "photo 1: smooth brown leather with visible creasing and surface marks; appears moderately glossy rather than clearly glove-tanned",
                    "lining_description": "photo 4: dark interior is visible with a zippered opening; lining material and any label are not reliably discernible",
                    "strap_construction": "photos 1-2: wide adjustable shoulder strap attached through stitched leather tabs with metal hardware; full strap and attachment details are not shown",
                    "stitching_description": "photos 1-2: mostly straight, machine stitching visible along edges and seams; no distinctive Coach construction feature can be confirmed"
                },
                "possible_model_reasoning": [
                    "The approximate 13-inch width and 5-inch depth describe a medium-to-large shoulder bag, but the silhouette does not provide a reliable match to a specific Coach catalog model.",
                    "The visible zipper-top, curved body and strap-tab construction could fit multiple generic leather shoulder bags; no style number or creed is available for model confirmation.",
                    "Condition: Good; visible creasing, scratches, stains or discoloration on the body (photos 1-2), with the bottom showing wear and marks (photo 3). Interior condition and odor are unknown."
                ],
                "confidence": 0.69,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 50
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-4: no creed, wordmark, or other Coach identifier visible to verify maker; consistency cannot be checked",
                    "photo 4: interior view is dark and blurry so creed patch if present could be missed"
                ],
                "authenticity_confidence": 0.35,
                "coach_probability": 0.45,
                "confidence": 0.45,
                "estimated_era": "unknown",
                "estimated_resale_high": 85,
                "estimated_resale_low": 25,
                "image_quality_score": 0.45,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of creed patch straight-on in raking light and interior back wall \/ slip pocket where creed sits",
                    "photo of hangtag both faces and chain if present",
                    "photo of front, zipper pull brand stamp and hardware close-ups",
                    "photo of strap full length, buckle holes and clip ends",
                    "seller-stated dimensions already given; request hand-for-scale and confirmation of lining material"
                ],
                "negative_evidence": [
                    "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch, or hangtag legible",
                    "photo 1-3: no turnlock or classic Coach closure visible; zip-top hobo silhouette alone is widely copied",
                    "photo 1-2: seller describes silver-tone hardware but visible rivets and zip teeth read brass-tone; tone cannot be confirmed in this light"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone rivets and zip teeth visible in photo 1 and photo 4; finish appears solid but lighting is poor; no turnlock, buckle, or pull stamp legible; seller states silver tone hardware which is inconsistent with photos",
                    "leather_description": "photo 1-3: smooth medium-brown \/ British Tan-like leather with satin sheen and patina, creasing and dark stain spots; grain looks like glove-tanned cowhide but texture not close enough to confirm",
                    "lining_description": "photo 4: dark interior appears unlined suede with zip pocket, consistent with seller text raw suede lining and 1 open pocket; details obscured by shadow and blur - not_visible for weave or labels",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "photo 1-2: straight light-contrast stitching along side seam and top edge, even where visible; no close-up to assess stress points",
                    "strap_construction": "photo 1-2: wide flat shoulder strap with eyelets and rivet attachment to body; full length, adjustment and clips not shown",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-3: smooth tan glove-tanned-like leather with baseball-glove patina and unlined look typical of vintage Coach classics",
                    "photo 4: unlined suede-like interior with zip pocket matches classic Coach interior layout",
                    "photo 2-3: simple zip-top hobo \/ shoulder silhouette with dimensions 13x10x5 in compatible with Coach 1990s hobo types",
                    "photo 1-2: even tone-on-tone stitching and riveted strap anchors; no logo print, nylon, PVC, or plastic hardware"
                ],
                "possible_model_reasoning": [
                    "Zip-top unlined hobo with 13x10x5 in size closest to Soho Zip Hobo (4161) 12x8x3 and Legacy Zip-Top Hobo (9059) \/ Legacy Shoulder types; no closure, creed, or hardware detail to distinguish, so identification is low confidence",
                    "Era cannot be coded without creed\/serial\/country; construction suggests vintage glove-tanned era if Coach, but label remains unknown",
                    "Condition: Good to Very Good; photo 1-2: exterior creasing, stain marks, scratches and dark spots noted by seller; photo 3: bottom intact with edge wear; photo 4: interior not assessable due to darkness, lining unknown, cap grade"
                ],
                "possible_models": [
                    "Soho Zip Hobo (4161)",
                    "Legacy Shoulder (9164)"
                ],
                "recommended_max_bid": 30,
                "seller_misidentification_probability": 0.45,
                "vintage_probability": 0.65
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16883,
            "output_tokens": 871,
            "total_tokens": 17754,
            "estimated_cost_usd": 0.008844
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17200,
            "output_tokens": 1703,
            "total_tokens": 18903,
            "estimated_cost_usd": 0.004802
        }
    ]
}