Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.04,
    "vintage_probability": 0.24,
    "authenticity_confidence": 0.035,
    "image_quality_score": 0.74,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.785,
    "recommended_max_bid": 8,
    "estimated_resale_low": 10,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a shoulder\/tote-style handbag with leather-like exterior and two long shoulder straps.",
        "photo 1: Seller lists it as unbranded, which does not by itself exclude Coach.",
        "photo 1: is a leather-appearing shoulder handbag as listed"
    ],
    "negative_evidence": [
        "photo 1: Exterior shows no legible COACH wordmark, horse-and-carriage, hangtag, creed patch, or Coach-style turnlock.",
        "photo 1: Patchwork construction, highly glossy thin-looking leather, and multiple vertical zippers do not closely match the classic Coach catalog silhouettes shown in the reference.",
        "photo 2: Reverse is unbranded and lacks visible Coach identifiers.",
        "photo 3: The bag appears heavily creased and soft, with narrow flat straps and no visible vintage solid-brass hardware.",
        "photo 4: Zipper pulls and hardware appear dark\/plated rather than the substantial brass hardware typical of many vintage Coach classics.",
        "photo 7: Side view shows a large zipper running along the gusset and no visible Coach-specific hardware.",
        "photo 1: no turnlock, no brass hardware, no hangtag, no COACH wordmark visible",
        "photo 1,3: patchwork pieced leather body with two exterior vertical zip pockets - silhouette matches no Coach catalog style",
        "photo 3,6: thin sewn-on double shoulder straps and dark coil zippers, not solid brass Coach hardware",
        "photo 2,4: back and bottom show same patchwork construction with shiny coated finish, not matte glove-tanned cowhide",
        "photo 1-6: no creed patch, no wordmark, no horse-and-carriage visible in any view"
    ],
    "missing_information": [
        "photo 1-7: Interior is not shown; request a fully opened interior photo, including every pocket and seam.",
        "photo 1-7: Request close-ups of any interior labels, leather patches, fabric tags, zipper pulls, and hardware stamps.",
        "photo 1-7: Request a clear bottom, corner, strap-attachment, and lining-condition view.",
        "photo 1-7: Seller provides no dimensions, material specification, country of manufacture, or provenance.",
        "photo 1-6: interior not shown, lining and creed area unknown",
        "photo 1-6: creed patch close-up not shown",
        "photo 1-6: hardware brand stamps and Made-in line not shown",
        "photo 1-6: seller-stated dimensions and close-up of zipper pulls not shown"
    ],
    "authenticity_concerns": [
        "photo 1-7: No Coach identifier is visible, while the silhouette and construction appear generic; this is more consistent with an unbranded or other-brand patchwork bag than Coach.",
        "photo 1-7: The glossy, soft patchwork leather and dark hardware are inconsistent with the most recognizable vintage Coach glove-tanned\/brass-hardware construction, though the interior cannot be checked."
    ],
    "possible_model_reasoning": [
        "The tote\/shoulder silhouette and patchwork body do not provide a close match to a specific Coach model; no Coach model is proposed.",
        "Condition: Good\/Fair boundary; the bag shows extensive creasing and apparent deformation throughout the body and straps (photos 1-7), while interior, odor, lining, and zipper function remain unknown.",
        "No Coach model fits: patchwork tote with dual front zips and thin sewn straps has no counterpart in Classic, Sheridan, Sonoma, Ergo or modern lines",
        "No hard identifiers: no creed, no serial, no wordmark, no hangtag, no brass turnlock in photos 1-6",
        "Construction inconsistent with vintage Coach: pieced shiny leather, dark coil zippers, sewn fixed straps vs unlined glove-tanned, solid brass, turnlock flap",
        "Condition: Good to Very Good externally with softening\/creasing (photo 2,4) but interior unknown so grade 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 1, photo 4, photo 7: Dark zipper hardware and zipper pulls are visible; no turnlock, Coach engraving, hangtag, or other branded hardware is visible.",
        "leather_description": "photo 1-7: Black glossy, heavily creased patchwork material that appears leather-like; thickness, tanning, and material composition cannot be confirmed.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1-3, photo 6: Two long, narrow, flat shoulder straps attached directly to the upper body; straps appear creased and soft, with no visible buckles or detachable clips.",
        "stitching_description": "photo 1-5: Visible tone-on-tone stitching outlines irregular patchwork panels and zipper sections; stitching appears functional but is not characteristic evidence of Coach manufacture."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.002,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.06,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.04,
                "image_quality_score": 0.83,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a shoulder\/tote-style handbag with leather-like exterior and two long shoulder straps.",
                    "photo 1: Seller lists it as unbranded, which does not by itself exclude Coach."
                ],
                "negative_evidence": [
                    "photo 1: Exterior shows no legible COACH wordmark, horse-and-carriage, hangtag, creed patch, or Coach-style turnlock.",
                    "photo 1: Patchwork construction, highly glossy thin-looking leather, and multiple vertical zippers do not closely match the classic Coach catalog silhouettes shown in the reference.",
                    "photo 2: Reverse is unbranded and lacks visible Coach identifiers.",
                    "photo 3: The bag appears heavily creased and soft, with narrow flat straps and no visible vintage solid-brass hardware.",
                    "photo 4: Zipper pulls and hardware appear dark\/plated rather than the substantial brass hardware typical of many vintage Coach classics.",
                    "photo 7: Side view shows a large zipper running along the gusset and no visible Coach-specific hardware."
                ],
                "missing_information": [
                    "photo 1-7: Interior is not shown; request a fully opened interior photo, including every pocket and seam.",
                    "photo 1-7: Request close-ups of any interior labels, leather patches, fabric tags, zipper pulls, and hardware stamps.",
                    "photo 1-7: Request a clear bottom, corner, strap-attachment, and lining-condition view.",
                    "photo 1-7: Seller provides no dimensions, material specification, country of manufacture, or provenance."
                ],
                "authenticity_concerns": [
                    "photo 1-7: No Coach identifier is visible, while the silhouette and construction appear generic; this is more consistent with an unbranded or other-brand patchwork bag than Coach.",
                    "photo 1-7: The glossy, soft patchwork leather and dark hardware are inconsistent with the most recognizable vintage Coach glove-tanned\/brass-hardware construction, though the interior cannot be checked."
                ],
                "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, photo 4, photo 7: Dark zipper hardware and zipper pulls are visible; no turnlock, Coach engraving, hangtag, or other branded hardware is visible.",
                    "leather_description": "photo 1-7: Black glossy, heavily creased patchwork material that appears leather-like; thickness, tanning, and material composition cannot be confirmed.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1-3, photo 6: Two long, narrow, flat shoulder straps attached directly to the upper body; straps appear creased and soft, with no visible buckles or detachable clips.",
                    "stitching_description": "photo 1-5: Visible tone-on-tone stitching outlines irregular patchwork panels and zipper sections; stitching appears functional but is not characteristic evidence of Coach manufacture."
                },
                "possible_model_reasoning": [
                    "The tote\/shoulder silhouette and patchwork body do not provide a close match to a specific Coach model; no Coach model is proposed.",
                    "Condition: Good\/Fair boundary; the bag shows extensive creasing and apparent deformation throughout the body and straps (photos 1-7), while interior, odor, lining, and zipper function remain unknown."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.75,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo 1-6: interior not shown, lining and creed area unknown",
                    "photo 1-6: creed patch close-up not shown",
                    "photo 1-6: hardware brand stamps and Made-in line not shown",
                    "photo 1-6: seller-stated dimensions and close-up of zipper pulls not shown"
                ],
                "negative_evidence": [
                    "photo 1: no turnlock, no brass hardware, no hangtag, no COACH wordmark visible",
                    "photo 1,3: patchwork pieced leather body with two exterior vertical zip pockets - silhouette matches no Coach catalog style",
                    "photo 3,6: thin sewn-on double shoulder straps and dark coil zippers, not solid brass Coach hardware",
                    "photo 2,4: back and bottom show same patchwork construction with shiny coated finish, not matte glove-tanned cowhide",
                    "photo 1-6: no creed patch, no wordmark, no horse-and-carriage visible in any view"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "dark-tone coil zippers on front pockets and top closure; no solid brass, no turnlock, no buckles or dogleash clips visible",
                    "leather_description": "black patchwork pieced leather with shiny\/smooth finish and visible piecing stitches; not thick matte glove-tanned cowhide",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "visible topstitching around patchwork pieces and pocket trim; even but utilitarian, not Coach-matched-thread classic construction",
                    "strap_construction": "two thin flat double shoulder straps sewn directly to top edge, no buckle adjustment, no brass clips",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: is a leather-appearing shoulder handbag as listed"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: patchwork tote with dual front zips and thin sewn straps has no counterpart in Classic, Sheridan, Sonoma, Ergo or modern lines",
                    "No hard identifiers: no creed, no serial, no wordmark, no hangtag, no brass turnlock in photos 1-6",
                    "Construction inconsistent with vintage Coach: pieced shiny leather, dark coil zippers, sewn fixed straps vs unlined glove-tanned, solid brass, turnlock flap",
                    "Condition: Good to Very Good externally with softening\/creasing (photo 2,4) but interior unknown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 33093,
            "output_tokens": 916,
            "total_tokens": 34009,
            "estimated_cost_usd": 0.015436
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 35564,
            "output_tokens": 1086,
            "total_tokens": 36650,
            "estimated_cost_usd": 0.007982
        }
    ]
}