Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.055,
    "vintage_probability": 0.19,
    "authenticity_confidence": 0.05,
    "image_quality_score": 0.78,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.785,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 15,
    "estimated_resale_high": 42.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a leather handbag with top handles and a detachable shoulder strap",
        "photo 1: brown leather and substantial stitched construction are compatible with many vintage leather bags, including some Coach styles",
        "photo 1-5: leather handbag with patinated leather consistent with older secondhand bag"
    ],
    "negative_evidence": [
        "photo 1: no Coach wordmark, horse-and-carriage, hangtag, or characteristic vintage turnlock is visible",
        "photo 2: silver-tone hardware and multiple zipper compartments are not characteristic of the classic brass-hardware Coach silhouettes considered here",
        "photo 6: fabric-lined interior is visible, but no Coach creed patch or brand label can be seen",
        "photo 1: the structured satchel design, decorative front handle attachments, and contemporary zipper layout do not closely match the listed classic Coach models",
        "photo 1-5: no COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 6: no creed patch visible on interior; beige fabric lining, not unlined suede-back glove-tan",
        "photo 1-5: silver-tone rings, zipper pulls and buckle, not solid brass vintage hardware",
        "photo 1-5: zip-top satchel with dual rolled handles plus adjustable crossbody and exterior back zip pocket; no turnlock closure and no catalog Coach silhouette match",
        "photo 1-5: textured tan leather with contrast stitching, not smooth glove-tanned cowhide with tone-matched stitching"
    ],
    "missing_information": [
        "photo 6: a closer, straight-on photograph of every interior wall, pocket, and seam tag",
        "photo 1: close-ups of all zipper pulls and hardware for maker markings",
        "seller-stated dimensions and a clear photograph of the bottom and all corners",
        "photo 1: close-up of the shoulder-strap attachment and buckle holes",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
        "close-up of zipper pull brand stamps and hardware engravings",
        "close-up of any hangtag, wordmark, or made-in labels",
        "bottom corners and strap fold-point detail for condition confirmation"
    ],
    "authenticity_concerns": [
        "photo 1: the visible construction lacks the identifiers expected for a Coach bag and is more consistent with an unbranded or other-brand leather satchel",
        "photo 2: silver-tone hardware and a fabric-lined interior would be inconsistent with many alleged 1970s\u2013early-1990s classic Coach interpretations",
        "photo 1-5: silver-tone hardware inconsistent with 1970s-early 1990s solid-brass Coach classics",
        "photo 6: fully fabric-lined interior inconsistent with unlined glove-tanned vintage Coach classics"
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because the bag lacks a visible Coach identifier and its multi-zipper, silver-hardware satchel construction does not closely match the catalogued classic Coach silhouettes.",
        "photo 1 and photo 5: condition appears Good, with noticeable surface wear, creasing, and darkening; no major tear or broken hardware is visible, but the interior and odor cannot be fully assessed.",
        "No Coach model fits: zip-top dual-handle satchel with silver hardware and fabric lining does not match City Bag, Court, Station, Willis, Stewardess or other turnlock flap classics",
        "No creed, serial, wordmark, turnlock or hangtag to decode for era or style",
        "Condition: Good to Very Good; surface scuffs and patina (photo 1,3), strap appears intact (photo 1,5), bottom not closely shown and interior shows light soiling (photo 6), lining intact"
    ],
    "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: silver-tone rings, zipper hardware, and strap adjuster are visible; no Coach engraving is legible",
        "leather_description": "photos 1-5: brown leather with a vertically textured or heavily grained finish, visible surface wear and creasing",
        "lining_description": "photo 6: light tan fabric lining with a zippered interior pocket; no brand label or creed is visible",
        "strap_construction": "photos 1-5: detachable long shoulder strap with metal attachment rings and an adjustable buckle; top handles are stitched to front fittings",
        "stitching_description": "photos 1-5: generally visible, fairly even contrast stitching, with wear and creasing around handles and edges"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0031,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.08,
                "vintage_probability": 0.08,
                "authenticity_confidence": 0.07,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a leather handbag with top handles and a detachable shoulder strap",
                    "photo 1: brown leather and substantial stitched construction are compatible with many vintage leather bags, including some Coach styles"
                ],
                "negative_evidence": [
                    "photo 1: no Coach wordmark, horse-and-carriage, hangtag, or characteristic vintage turnlock is visible",
                    "photo 2: silver-tone hardware and multiple zipper compartments are not characteristic of the classic brass-hardware Coach silhouettes considered here",
                    "photo 6: fabric-lined interior is visible, but no Coach creed patch or brand label can be seen",
                    "photo 1: the structured satchel design, decorative front handle attachments, and contemporary zipper layout do not closely match the listed classic Coach models"
                ],
                "missing_information": [
                    "photo 6: a closer, straight-on photograph of every interior wall, pocket, and seam tag",
                    "photo 1: close-ups of all zipper pulls and hardware for maker markings",
                    "seller-stated dimensions and a clear photograph of the bottom and all corners",
                    "photo 1: close-up of the shoulder-strap attachment and buckle holes"
                ],
                "authenticity_concerns": [
                    "photo 1: the visible construction lacks the identifiers expected for a Coach bag and is more consistent with an unbranded or other-brand leather satchel",
                    "photo 2: silver-tone hardware and a fabric-lined interior would be inconsistent with many alleged 1970s\u2013early-1990s classic Coach interpretations"
                ],
                "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: silver-tone rings, zipper hardware, and strap adjuster are visible; no Coach engraving is legible",
                    "leather_description": "photos 1-5: brown leather with a vertically textured or heavily grained finish, visible surface wear and creasing",
                    "lining_description": "photo 6: light tan fabric lining with a zippered interior pocket; no brand label or creed is visible",
                    "strap_construction": "photos 1-5: detachable long shoulder strap with metal attachment rings and an adjustable buckle; top handles are stitched to front fittings",
                    "stitching_description": "photos 1-5: generally visible, fairly even contrast stitching, with wear and creasing around handles and edges"
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because the bag lacks a visible Coach identifier and its multi-zipper, silver-hardware satchel construction does not closely match the catalogued classic Coach silhouettes.",
                    "photo 1 and photo 5: condition appears Good, with noticeable surface wear, creasing, and darkening; no major tear or broken hardware is visible, but the interior and odor cannot be fully assessed."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 15,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-5: silver-tone hardware inconsistent with 1970s-early 1990s solid-brass Coach classics",
                    "photo 6: fully fabric-lined interior inconsistent with unlined glove-tanned vintage Coach classics"
                ],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.75,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
                    "close-up of zipper pull brand stamps and hardware engravings",
                    "close-up of any hangtag, wordmark, or made-in labels",
                    "bottom corners and strap fold-point detail for condition confirmation"
                ],
                "negative_evidence": [
                    "photo 1-5: no COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 6: no creed patch visible on interior; beige fabric lining, not unlined suede-back glove-tan",
                    "photo 1-5: silver-tone rings, zipper pulls and buckle, not solid brass vintage hardware",
                    "photo 1-5: zip-top satchel with dual rolled handles plus adjustable crossbody and exterior back zip pocket; no turnlock closure and no catalog Coach silhouette match",
                    "photo 1-5: textured tan leather with contrast stitching, not smooth glove-tanned cowhide with tone-matched stitching"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone metal D-rings at handles, side rings for crossbody strap, top zipper and exterior back zipper pulls with ball ends, and buckle slider on crossbody strap",
                    "leather_description": "medium tan \/ British-tan-like textured leather with patina, scuffs and surface wear, center seam detail",
                    "lining_description": "beige \/ tan fabric lining visible in photo 6, with interior side zip pocket",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light contrast stitching along panels, handle anchors and center seam, even but light-colored vs leather",
                    "strap_construction": "two short rolled top handles on metal rings plus long detachable\/adjustable flat crossbody strap with buckle",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-5: leather handbag with patinated leather consistent with older secondhand bag"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: zip-top dual-handle satchel with silver hardware and fabric lining does not match City Bag, Court, Station, Willis, Stewardess or other turnlock flap classics",
                    "No creed, serial, wordmark, turnlock or hangtag to decode for era or style",
                    "Condition: Good to Very Good; surface scuffs and patina (photo 1,3), strap appears intact (photo 1,5), bottom not closely shown and interior shows light soiling (photo 6), lining intact"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28952,
            "output_tokens": 850,
            "total_tokens": 29802,
            "estimated_cost_usd": 0.013621
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30394,
            "output_tokens": 1344,
            "total_tokens": 31738,
            "estimated_cost_usd": 0.007154
        }
    ]
}