Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.025,
    "vintage_probability": 0.375,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.77,
    "seller_misidentification_probability": 0.03,
    "confidence": 0.82,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a handbag with a substantial shoulder strap and zip-top construction.",
        "photo 2: Black leather-like outer material and multicolor stitched patchwork are visible.",
        "photo 6: Interior includes a zippered pocket and dark lining."
    ],
    "negative_evidence": [
        "photo 1: No COACH wordmark, horse-and-carriage emblem, or recognizable Coach hardware is visible.",
        "photo 1: The multicolor textile\/leather patchwork front and gathered, padded strap do not match the listed classic Coach silhouettes.",
        "photo 2: The exterior construction appears highly decorative and quilted\/patchworked rather than the smooth, structured glove-tanned leather typical of classic vintage Coach.",
        "photo 5: Visible zipper hardware is plain and unbranded; no Coach-stamped pull is visible.",
        "photo 6: The interior appears fabric or synthetic-lined, with no visible creed patch or Coach label.",
        "Listing text: Seller identifies the bag as unbranded and provides no Coach-specific evidence.",
        "photo 1-4: large circular patchwork \/ southwest-print textile panels with applique - never used on vintage Coach classics which are solid glove-tanned leather",
        "photo 6: fully lined black fabric interior with wall zip pocket - vintage Coach classics are unlined suede-back glove-tanned, not fabric-lined",
        "photo 1-6: no creed patch visible on interior back wall in interior view",
        "photo 1-5: no turnlock, no solid brass hardware, no D-rings or buckles - only dark coil zip top",
        "photo 1-6: no COACH wordmark, horse-and-carriage, or leather hangtag visible",
        "photo 2,4: soft knotted single shoulder strap integrated to body - no Coach catalog silhouette match"
    ],
    "missing_information": [
        "photo 6: A straight-on, well-lit view of every interior wall and pocket to confirm whether any creed or brand label is present.",
        "A close-up of all zipper pulls, strap attachments, and any interior or exterior labels.",
        "A bottom and side view, including corners and seams, for fuller construction and condition assessment.",
        "Seller-stated material details and country of manufacture, if known.",
        "photo of any interior leather creed patch or fabric brand tag in pocket seam - not shown",
        "photo of zipper pull brand stamp - not shown",
        "photo of bottom and corners for condition grading - not shown"
    ],
    "authenticity_concerns": [
        "photo 1: The design appears to be a generic patchwork artisan or fashion bag rather than a Coach model; no Coach identifier is visible.",
        "photo 6: Absence of a visible creed or brand label is a significant concern, though the interior coverage is not fully comprehensive."
    ],
    "possible_model_reasoning": [
        "The silhouette is a soft shoulder or hobo-style patchwork bag, but it does not closely correspond to the catalogued Coach models in the reference set.",
        "The visible zipper-top construction and decorative patchwork are more consistent with a generic artisan or fashion handbag than with a classic Coach glove-tanned leather model.",
        "Condition: Good to Very Good; visible creasing and gathered wear in the black outer material, with no obvious holes or broken hardware in the supplied photos. Interior condition and odor are unknown.",
        "No Coach identifier visible in any of 6 photos; silhouette, patchwork construction, lined interior and zip-top knotted-strap hobo do not match any Classic glove-tanned catalog style",
        "Condition: Very Good to Excellent per seller title; photos show supple leather, no corner wear shown, but bottom and hardware close-ups missing 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": "photo 5: Plain dark zipper hardware and small metal strap\/zipper fittings are visible; no Coach engraving is visible. Turnlock and hangtag are not visible.",
        "leather_description": "photo 1: Black, soft-looking leather or leather-like material with gathered\/padded sections; front uses multicolor fabric or leather patchwork with decorative stitching. Exact material cannot be confirmed.",
        "lining_description": "photo 6: Dark fabric or synthetic-looking lining with an interior zip pocket; no brand label or creed is visible.",
        "strap_construction": "photos 1-4: Wide, heavily gathered\/padded shoulder strap attached to the bag at the sides; no adjustable buckle or Coach-style detachable strap hardware is visible.",
        "stitching_description": "photos 1-5: Extensive visible decorative zigzag and blanket-style stitching around irregular patchwork pieces; perimeter stitching is visible but not sufficient for brand identification."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0008,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.35,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a handbag with a substantial shoulder strap and zip-top construction.",
                    "photo 2: Black leather-like outer material and multicolor stitched patchwork are visible.",
                    "photo 6: Interior includes a zippered pocket and dark lining."
                ],
                "negative_evidence": [
                    "photo 1: No COACH wordmark, horse-and-carriage emblem, or recognizable Coach hardware is visible.",
                    "photo 1: The multicolor textile\/leather patchwork front and gathered, padded strap do not match the listed classic Coach silhouettes.",
                    "photo 2: The exterior construction appears highly decorative and quilted\/patchworked rather than the smooth, structured glove-tanned leather typical of classic vintage Coach.",
                    "photo 5: Visible zipper hardware is plain and unbranded; no Coach-stamped pull is visible.",
                    "photo 6: The interior appears fabric or synthetic-lined, with no visible creed patch or Coach label.",
                    "Listing text: Seller identifies the bag as unbranded and provides no Coach-specific evidence."
                ],
                "missing_information": [
                    "photo 6: A straight-on, well-lit view of every interior wall and pocket to confirm whether any creed or brand label is present.",
                    "A close-up of all zipper pulls, strap attachments, and any interior or exterior labels.",
                    "A bottom and side view, including corners and seams, for fuller construction and condition assessment.",
                    "Seller-stated material details and country of manufacture, if known."
                ],
                "authenticity_concerns": [
                    "photo 1: The design appears to be a generic patchwork artisan or fashion bag rather than a Coach model; no Coach identifier is visible.",
                    "photo 6: Absence of a visible creed or brand label is a significant concern, though the interior coverage is not fully comprehensive."
                ],
                "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 5: Plain dark zipper hardware and small metal strap\/zipper fittings are visible; no Coach engraving is visible. Turnlock and hangtag are not visible.",
                    "leather_description": "photo 1: Black, soft-looking leather or leather-like material with gathered\/padded sections; front uses multicolor fabric or leather patchwork with decorative stitching. Exact material cannot be confirmed.",
                    "lining_description": "photo 6: Dark fabric or synthetic-looking lining with an interior zip pocket; no brand label or creed is visible.",
                    "strap_construction": "photos 1-4: Wide, heavily gathered\/padded shoulder strap attached to the bag at the sides; no adjustable buckle or Coach-style detachable strap hardware is visible.",
                    "stitching_description": "photos 1-5: Extensive visible decorative zigzag and blanket-style stitching around irregular patchwork pieces; perimeter stitching is visible but not sufficient for brand identification."
                },
                "possible_model_reasoning": [
                    "The silhouette is a soft shoulder or hobo-style patchwork bag, but it does not closely correspond to the catalogued Coach models in the reference set.",
                    "The visible zipper-top construction and decorative patchwork are more consistent with a generic artisan or fashion handbag than with a classic Coach glove-tanned leather model.",
                    "Condition: Good to Very Good; visible creasing and gathered wear in the black outer material, with no obvious holes or broken hardware in the supplied photos. Interior condition and odor are unknown."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.82,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of any interior leather creed patch or fabric brand tag in pocket seam - not shown",
                    "photo of zipper pull brand stamp - not shown",
                    "photo of bottom and corners for condition grading - not shown"
                ],
                "negative_evidence": [
                    "photo 1-4: large circular patchwork \/ southwest-print textile panels with applique - never used on vintage Coach classics which are solid glove-tanned leather",
                    "photo 6: fully lined black fabric interior with wall zip pocket - vintage Coach classics are unlined suede-back glove-tanned, not fabric-lined",
                    "photo 1-6: no creed patch visible on interior back wall in interior view",
                    "photo 1-5: no turnlock, no solid brass hardware, no D-rings or buckles - only dark coil zip top",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, or leather hangtag visible",
                    "photo 2,4: soft knotted single shoulder strap integrated to body - no Coach catalog silhouette match"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "dark-tone coil zipper top closure; no brass turnlock, buckles, or D-rings visible; zipper brand not legible",
                    "leather_description": "black smooth leather body and strap with multicolor red\/green\/tan patchwork textile and leather-applique circular side panels",
                    "lining_description": "black fabric lining with interior zip pocket visible in photo 6; not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight seam piping around panels plus zigzag overlock stitching securing patchwork appliques visible in photo 3",
                    "strap_construction": "single wide soft shoulder strap, integrated to bag sides, with gathered knot detail on one side in photo 4",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any of 6 photos; silhouette, patchwork construction, lined interior and zip-top knotted-strap hobo do not match any Classic glove-tanned catalog style",
                    "Condition: Very Good to Excellent per seller title; photos show supple leather, no corner wear shown, but bottom and hardware close-ups missing so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.4
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 29984,
            "output_tokens": 903,
            "total_tokens": 30887,
            "estimated_cost_usd": 0.014161
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 31612,
            "output_tokens": 1328,
            "total_tokens": 32940,
            "estimated_cost_usd": 0.007385
        }
    ]
}