Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.14,
    "vintage_probability": 0.215,
    "authenticity_confidence": 0.12,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.14,
    "confidence": 0.665,
    "recommended_max_bid": 15,
    "estimated_resale_low": 15,
    "estimated_resale_high": 45,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Leather handbag with top handles and a detachable crossbody strap.",
        "photo 2: Gold-tone hardware and substantial leather construction are compatible with some Coach bags.",
        "photo 4: Leather zipper pull and overall construction appear more substantial than a typical synthetic fashion bag.",
        "photo 1-6: all-leather handbag with brass-tone hardware, the population where misidentified vintage Coach can hide",
        "photo 1-6: tan leather with soft patina and wear consistent with genuine leather bag"
    ],
    "negative_evidence": [
        "photo 1: No visible Coach wordmark, horse-and-carriage emblem, or leather hangtag.",
        "photos 1-6: No creed patch or Coach identifier is visible.",
        "photos 1-6: The pebbled leather, top-handle Boston silhouette, and corner reinforcement details are generic and shared by many non-Coach makers.",
        "photo 4: Zipper hardware is visible but no legible Coach or recognized vintage zipper-brand marking can be seen.",
        "listing text: Seller identifies the item as unbranded; this is weak contextual evidence only, not proof of non-Coach manufacture.",
        "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 1-3: zip-top Boston\/satchel silhouette with dual top handles and detachable crossbody strap does not match classic vintage Coach turnlock flap catalog styles",
        "photo 1-6: no solid-brass vintage Coach turnlock present",
        "photo 4: top zip with small leather pull tab, no Talon\/YKK\/Coach stamp legible",
        "photo 1-6: no bead-chain hangtag, dogleash geometry, wooden dowel handle, or other Coach-specific construction cues visible",
        "interior not shown in any photo so no unlined glove-tanned suede back or Coach lining to support Coach"
    ],
    "missing_information": [
        "A clear straight-on photo of the entire interior, including the back wall and every pocket.",
        "A close-up of any interior leather patch, fabric tag, or maker label.",
        "Close-ups of the zipper pull, hardware, and strap clips for any maker markings.",
        "A clear photo of the bottom, all corners, and full strap condition.",
        "Seller-stated measurements and photos showing the interior lining material.",
        "photo of interior emptied and interior walls\/pockets where creed would sit",
        "straight-on creed patch photo in raking light if present",
        "photo of hangtag both faces if present",
        "close-up of zipper pull brand stamp and hardware engravings",
        "bottom and corner close-ups and interior lining material"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible, so the bag cannot be connected confidently to Coach manufacture.",
        "The generic silhouette and hardware do not establish a Coach model and could represent an unbranded or other-brand leather bag."
    ],
    "possible_model_reasoning": [
        "The top-handle, zip-top Boston shape with detachable crossbody strap does not closely establish a specific classic Coach model from the available views.",
        "No creed, serial\/style number, or Coach branding is visible, so no Coach model is listed.",
        "Condition: Good; visible creasing, corner\/edge rubbing, handle darkening, and general surface wear in photos 1-6. Interior condition and odor are unknown.",
        "No Coach model fits: Boston zip satchel shape, top-handle plus crossbody configuration, and absence of turnlock\/flap\/creed\/hangtag do not correspond to City Bag (9790), Willis (9927), Court (9870), Station (5130), Duffle Sac (9085) or other catalog styles",
        "Era reasoning: without creed, serial, country line, or construction markers, cannot place in Coach era table; overall styling and hardware read as modern generic non-Coach",
        "Condition: Good to Very Good; seller states good used with normal wear, no holes or stains; photos show creasing\/slouch, surface scuffs and corner rubbing (photo 5-6), strap appears intact but fold-point and buckle holes not shown, interior not shown so lining\/odor unknown"
    ],
    "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: Gold-tone rings, lobster-style clips, buckles, and zipper hardware are visible; no legible brand engraving is shown.",
        "leather_description": "photos 1-6: Tan\/brown pebbled leather with visible natural grain, surface creasing, and wear at corners and edges.",
        "lining_description": "not_visible",
        "strap_construction": "photos 1-6: Detachable long shoulder strap with stitched edges, adjustment hardware, and clip attachments; top handles are secured with stitched leather tabs.",
        "stitching_description": "photos 1-6: Visible stitching is generally even and tone-matched, with reinforced handle and corner seams; some wear and darkening are present."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0044,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.22,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.18,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.22,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Leather handbag with top handles and a detachable crossbody strap.",
                    "photo 2: Gold-tone hardware and substantial leather construction are compatible with some Coach bags.",
                    "photo 4: Leather zipper pull and overall construction appear more substantial than a typical synthetic fashion bag."
                ],
                "negative_evidence": [
                    "photo 1: No visible Coach wordmark, horse-and-carriage emblem, or leather hangtag.",
                    "photos 1-6: No creed patch or Coach identifier is visible.",
                    "photos 1-6: The pebbled leather, top-handle Boston silhouette, and corner reinforcement details are generic and shared by many non-Coach makers.",
                    "photo 4: Zipper hardware is visible but no legible Coach or recognized vintage zipper-brand marking can be seen.",
                    "listing text: Seller identifies the item as unbranded; this is weak contextual evidence only, not proof of non-Coach manufacture."
                ],
                "missing_information": [
                    "A clear straight-on photo of the entire interior, including the back wall and every pocket.",
                    "A close-up of any interior leather patch, fabric tag, or maker label.",
                    "Close-ups of the zipper pull, hardware, and strap clips for any maker markings.",
                    "A clear photo of the bottom, all corners, and full strap condition.",
                    "Seller-stated measurements and photos showing the interior lining material."
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible, so the bag cannot be connected confidently to Coach manufacture.",
                    "The generic silhouette and hardware do not establish a Coach model and could represent an unbranded or other-brand leather bag."
                ],
                "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: Gold-tone rings, lobster-style clips, buckles, and zipper hardware are visible; no legible brand engraving is shown.",
                    "leather_description": "photos 1-6: Tan\/brown pebbled leather with visible natural grain, surface creasing, and wear at corners and edges.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1-6: Detachable long shoulder strap with stitched edges, adjustment hardware, and clip attachments; top handles are secured with stitched leather tabs.",
                    "stitching_description": "photos 1-6: Visible stitching is generally even and tone-matched, with reinforced handle and corner seams; some wear and darkening are present."
                },
                "possible_model_reasoning": [
                    "The top-handle, zip-top Boston shape with detachable crossbody strap does not closely establish a specific classic Coach model from the available views.",
                    "No creed, serial\/style number, or Coach branding is visible, so no Coach model is listed.",
                    "Condition: Good; visible creasing, corner\/edge rubbing, handle darkening, and general surface wear in photos 1-6. Interior condition and odor are unknown."
                ],
                "confidence": 0.68,
                "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": 0.06,
                "coach_probability": 0.06,
                "confidence": 0.65,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior emptied and interior walls\/pockets where creed would sit",
                    "straight-on creed patch photo in raking light if present",
                    "photo of hangtag both faces if present",
                    "close-up of zipper pull brand stamp and hardware engravings",
                    "bottom and corner close-ups and interior lining material"
                ],
                "negative_evidence": [
                    "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 1-3: zip-top Boston\/satchel silhouette with dual top handles and detachable crossbody strap does not match classic vintage Coach turnlock flap catalog styles",
                    "photo 1-6: no solid-brass vintage Coach turnlock present",
                    "photo 4: top zip with small leather pull tab, no Talon\/YKK\/Coach stamp legible",
                    "photo 1-6: no bead-chain hangtag, dogleash geometry, wooden dowel handle, or other Coach-specific construction cues visible",
                    "interior not shown in any photo so no unlined glove-tanned suede back or Coach lining to support Coach"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone metal rings and lobster\/dogleash-type clips for crossbody strap (photo 1-3,6), top zipper with brass-tone teeth and small leather tab pull (photo 4); tone consistent but no COACH engraving legible",
                    "leather_description": "tan\/camel smooth leather with soft slouch and surface sheen, corner patch reinforcements (photo 1-3,5-6); grain and thickness not clearly glove-tanned in these photos",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched straight stitching visible along zip panel and trim (photo 4); overall even but no detailed stress-point close-up",
                    "strap_construction": "short rolled top handles attached with riveted tabs and rectangular rings (photo 1), plus thin detachable flat crossbody\/shoulder strap on trigger clips (photo 1-3,5-6)",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-6: all-leather handbag with brass-tone hardware, the population where misidentified vintage Coach can hide",
                    "photo 1-6: tan leather with soft patina and wear consistent with genuine leather bag"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: Boston zip satchel shape, top-handle plus crossbody configuration, and absence of turnlock\/flap\/creed\/hangtag do not correspond to City Bag (9790), Willis (9927), Court (9870), Station (5130), Duffle Sac (9085) or other catalog styles",
                    "Era reasoning: without creed, serial, country line, or construction markers, cannot place in Coach era table; overall styling and hardware read as modern generic non-Coach",
                    "Condition: Good to Very Good; seller states good used with normal wear, no holes or stains; photos show creasing\/slouch, surface scuffs and corner rubbing (photo 5-6), strap appears intact but fold-point and buckle holes not shown, interior not shown so lining\/odor unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.06,
                "vintage_probability": 0.25
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17719,
            "output_tokens": 899,
            "total_tokens": 18618,
            "estimated_cost_usd": 0.009245
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18054,
            "output_tokens": 1334,
            "total_tokens": 19388,
            "estimated_cost_usd": 0.004678
        }
    ]
}