Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.055,
    "vintage_probability": 0.1,
    "authenticity_confidence": 0.05,
    "image_quality_score": 0.735,
    "seller_misidentification_probability": 0.13,
    "confidence": 0.745,
    "recommended_max_bid": 11,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1-2: large leather handbag with top handles and detachable shoulder strap",
        "photo 5: full leather bottom with 4 metal feet",
        "photo 1-4: all-over leather construction with side zip pocket"
    ],
    "negative_evidence": [
        "photo 1: Large structured satchel has highly decorative studded strap architecture and a prominent curved front pocket design unlike the documented vintage Coach classic silhouettes.",
        "photo 1: Hardware appears bright, rounded and plated rather than the restrained solid-brass turnlocks and buckles typical of vintage Coach.",
        "photo 2: Exterior leather appears smooth and somewhat glossy with extensive contrasting white stitching and numerous rivet studs, a construction style not characteristic of classic glove-tanned Coach bags.",
        "photo 5: Bottom has four prominent rounded metal feet and broad fashion-satchel construction; no Coach identifier is visible.",
        "photo 7: Visible round hardware detail is not legibly a COACH wordmark or horse-and-carriage.",
        "listing title: Seller states the brand tag is missing and unknown; no seller-provided Coach identifier is present.",
        "photo 1-6: no COACH wordmark, horse-and-carriage, or creed patch visible",
        "photo 1-6: no turnlock present - front pocket uses round magnetic snap, not Coach turnlock geometry",
        "photo 1-6: silhouette with riveted vertical straps, shaped snap flap pocket, contrast white stitching and 4 bottom feet does not match classic glove-tanned Coach catalog styles",
        "photo 2,5: bright gold-tone plated rivets, rings and snaps, not solid brass vintage hardware with patina",
        "photo 6: snap hardware with textured ring stamping, no Coach engraving visible"
    ],
    "missing_information": [
        "photo 1-7: Interior back wall and pockets are not shown; request a straight-on image of any leather creed patch or fabric label.",
        "photo 1-7: No readable serial\/style number or country-of-manufacture tag is shown; request close-ups of all interior and seam tags.",
        "photo 1-7: No clear close-up of zipper pulls or hardware engravings.",
        "photo 1-7: Seller-stated material composition, dimensions, and condition details are absent.",
        "photo of interior lining and interior pockets \/ creed patch not shown",
        "close-up of any brand stamp on hardware, snap, or zipper pull not shown",
        "photo of hangtag or brand tag area - seller states brand tag missing",
        "back \/ side views and interior emptied view not shown",
        "seller-stated dimensions and strap drop not provided"
    ],
    "authenticity_concerns": [
        "The visible construction strongly suggests a modern non-Coach fashion satchel or lookalike rather than a vintage Coach model.",
        "No creed patch, Coach wordmark, horse-and-carriage mark, or recognizable Coach hardware is visible in the provided photos.",
        "The bright plated-looking hardware, extensive rivets, glossy smooth leather, and decorative front pocket are inconsistent with the classic vintage Coach construction described in the reference."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match: the studded large satchel silhouette and elaborate curved front pocket do not correspond closely to the listed classic Coach City Bag, Willis, Court, Station, or other catalog styles.",
        "Era is estimated as modern (2000s+), non-Coach from the fashion-satchel construction, bright plated-looking hardware, decorative rivets, and absence of visible vintage Coach identifiers.",
        "Condition appears Good to Very Good: exterior creasing and surface marks are visible in photos 1-7, but there are no clearly visible tears or broken hardware; interior condition and odor are unknown.",
        "No Coach identifier visible in any photo so no catalog match can be supported; design with contrast stitching, snap pocket and riveted straps is inconsistent with 1970s-1990s unlined glove-tanned turnlock classics; Condition: Good to Very Good; light scuffs and edge wear visible photo 4-5, bottom intact photo 5, interior and strap condition unknown due to missing views"
    ],
    "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": "Bright gold-tone rounded studs, rivets, feet, rings, and snap-style hardware are visible; no legible Coach engraving is shown.",
        "leather_description": "Blue-grey smooth leather or leather-like material with a slight sheen, visible creasing, and some surface wear; exact material is not verifiable from photos.",
        "lining_description": "not_visible",
        "strap_construction": "Two rolled top handles plus a long adjustable shoulder strap with contrasting stitching and metal attachment rings; strap ends and hardware are visible in photos 1-2 and 6.",
        "stitching_description": "Prominent contrasting light stitching is generally even but decorative and extensive across the exterior, straps, pocket, and base."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.003,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.08,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.18,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: Large structured satchel has highly decorative studded strap architecture and a prominent curved front pocket design unlike the documented vintage Coach classic silhouettes.",
                    "photo 1: Hardware appears bright, rounded and plated rather than the restrained solid-brass turnlocks and buckles typical of vintage Coach.",
                    "photo 2: Exterior leather appears smooth and somewhat glossy with extensive contrasting white stitching and numerous rivet studs, a construction style not characteristic of classic glove-tanned Coach bags.",
                    "photo 5: Bottom has four prominent rounded metal feet and broad fashion-satchel construction; no Coach identifier is visible.",
                    "photo 7: Visible round hardware detail is not legibly a COACH wordmark or horse-and-carriage.",
                    "listing title: Seller states the brand tag is missing and unknown; no seller-provided Coach identifier is present."
                ],
                "missing_information": [
                    "photo 1-7: Interior back wall and pockets are not shown; request a straight-on image of any leather creed patch or fabric label.",
                    "photo 1-7: No readable serial\/style number or country-of-manufacture tag is shown; request close-ups of all interior and seam tags.",
                    "photo 1-7: No clear close-up of zipper pulls or hardware engravings.",
                    "photo 1-7: Seller-stated material composition, dimensions, and condition details are absent."
                ],
                "authenticity_concerns": [
                    "The visible construction strongly suggests a modern non-Coach fashion satchel or lookalike rather than a vintage Coach model.",
                    "No creed patch, Coach wordmark, horse-and-carriage mark, or recognizable Coach hardware is visible in the provided photos.",
                    "The bright plated-looking hardware, extensive rivets, glossy smooth leather, and decorative front pocket are inconsistent with the classic vintage Coach construction described in the reference."
                ],
                "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": "Bright gold-tone rounded studs, rivets, feet, rings, and snap-style hardware are visible; no legible Coach engraving is shown.",
                    "leather_description": "Blue-grey smooth leather or leather-like material with a slight sheen, visible creasing, and some surface wear; exact material is not verifiable from photos.",
                    "lining_description": "not_visible",
                    "strap_construction": "Two rolled top handles plus a long adjustable shoulder strap with contrasting stitching and metal attachment rings; strap ends and hardware are visible in photos 1-2 and 6.",
                    "stitching_description": "Prominent contrasting light stitching is generally even but decorative and extensive across the exterior, straps, pocket, and base."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match: the studded large satchel silhouette and elaborate curved front pocket do not correspond closely to the listed classic Coach City Bag, Willis, Court, Station, or other catalog styles.",
                    "Era is estimated as modern (2000s+), non-Coach from the fashion-satchel construction, bright plated-looking hardware, decorative rivets, and absence of visible vintage Coach identifiers.",
                    "Condition appears Good to Very Good: exterior creasing and surface marks are visible in photos 1-7, but there are no clearly visible tears or broken hardware; interior condition and odor are unknown."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.08,
                "coach_probability": 0.08,
                "confidence": 0.65,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior lining and interior pockets \/ creed patch not shown",
                    "close-up of any brand stamp on hardware, snap, or zipper pull not shown",
                    "photo of hangtag or brand tag area - seller states brand tag missing",
                    "back \/ side views and interior emptied view not shown",
                    "seller-stated dimensions and strap drop not provided"
                ],
                "negative_evidence": [
                    "photo 1-6: no COACH wordmark, horse-and-carriage, or creed patch visible",
                    "photo 1-6: no turnlock present - front pocket uses round magnetic snap, not Coach turnlock geometry",
                    "photo 1-6: silhouette with riveted vertical straps, shaped snap flap pocket, contrast white stitching and 4 bottom feet does not match classic glove-tanned Coach catalog styles",
                    "photo 2,5: bright gold-tone plated rivets, rings and snaps, not solid brass vintage hardware with patina",
                    "photo 6: snap hardware with textured ring stamping, no Coach engraving visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone round dome rivets on vertical straps, large O-rings for handles, round magnetic snap on front pocket, 4 dome feet on bottom; bright plated appearance, no COACH engraving legible",
                    "leather_description": "smooth slate grey-blue leather satchel with soft sheen, white contrast stitching throughout, rolled top handles",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "contrasting off-white stitching, even but heavy topstitching on straps, pocket and base; not tone-on-tone vintage Coach stitching",
                    "strap_construction": "dual rolled top handles on rings plus detachable flat shoulder strap with stitching visible in photo 2 and 6",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-2: large leather handbag with top handles and detachable shoulder strap",
                    "photo 5: full leather bottom with 4 metal feet",
                    "photo 1-4: all-over leather construction with side zip pocket"
                ],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any photo so no catalog match can be supported; design with contrast stitching, snap pocket and riveted straps is inconsistent with 1970s-1990s unlined glove-tanned turnlock classics; Condition: Good to Very Good; light scuffs and edge wear visible photo 4-5, bottom intact photo 5, interior and strap condition unknown due to missing views"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.08,
                "vintage_probability": 0.12
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 26641,
            "output_tokens": 881,
            "total_tokens": 27522,
            "estimated_cost_usd": 0.012771
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 27722,
            "output_tokens": 1357,
            "total_tokens": 29079,
            "estimated_cost_usd": 0.00663
        }
    ]
}