Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.085,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.425,
    "confidence": 0.815,
    "recommended_max_bid": 15,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 42.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather cross-body handbag with a flap, shoulder strap, multiple compartments, and substantial construction.",
        "photo 1: brown leather and contrasting stitching are compatible with many vintage-style leather bags, but are not Coach-specific identifiers."
    ],
    "negative_evidence": [
        "photo 1: visible hardware is silver-tone rather than the solid brass commonly associated with classic vintage Coach styles.",
        "photo 1: the bag uses multiple buckle straps and decorative front hardware rather than a recognizable Coach turnlock.",
        "photo 1: no legible COACH wordmark, horse-and-carriage, creed patch, or Coach hangtag is visible.",
        "photo 2: interior view shows generic zippered compartments and lining; no Coach creed or fabric tag is visible.",
        "photo 3: construction and decorative strap arrangement do not closely match the listed classic Coach saddle, crossbody, or flap models.",
        "photo 1: seller identifies the material as goat leather and the listing is unbranded; neither supports Coach manufacture.",
        "photo 1, photo 3, photo 4: closure is buckle-strap, no turnlock present",
        "photo 1, photo 4: silver-tone buckles and D-rings, not solid brass vintage Coach hardware",
        "photo 1, photo 2: high-contrast golden-yellow stitching, not tone-matched Coach stitching",
        "photo 1, photo 2: no creed patch, no COACH wordmark, no horse-and-carriage visible",
        "photo 1, photo 4: blank brown rectangular tag with blurred face, not stamped COACH hangtag",
        "photo 2: tan lined interior with zip, not unlined suede-back glove-tanned classic interior",
        "photo 1, photo 4: saddle-buckle silhouette with exterior front pocket does not match Coach catalog styles"
    ],
    "missing_information": [
        "A straight-on close-up of every interior wall and pocket for a possible creed patch or fabric tag.",
        "Close-ups of all hardware, zipper pulls, and any embossed stamps.",
        "Clear bottom, side, strap-attachment, and interior photographs.",
        "Seller-stated dimensions and any country-of-origin or maker markings.",
        "creed patch straight-on in raking light - not shown in any photo",
        "interior emptied showing back wall, pockets and any stamps or fabric tags",
        "bottom with all four corners, both sides and back exterior",
        "hardware close-ups: buckles, D-rings, zipper pull brand stamp",
        "hangtag both faces and seller-stated dimensions"
    ],
    "authenticity_concerns": [
        "photo 1: generic unbranded construction and silver-tone hardware provide no Coach-specific evidence.",
        "photo 2: absence of a visible creed or other brand identifier prevents verification and makes this more consistent with a non-Coach lookalike.",
        "photo 1: the decorative buckle-and-strap design is not a strong match for the documented vintage Coach catalog.",
        "photo 1, photo 4: no COACH identifier, creed, wordmark or carriage visible to authenticate",
        "photo 1, photo 4: buckle closure and silver-tone hardware inconsistent with vintage Coach brass turnlock construction"
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because the bag lacks visible Coach identifiers and its silhouette does not closely match a documented Coach classic.",
        "Condition: approximately Very Good from the visible exterior; leather shows creasing and general handling, but no major tears or broken hardware are visible. Bottom, corners, odor, and full interior condition remain unverified.",
        "The seller's 'Saddle Bag' wording is treated as a generic style description, not evidence of the Coach Saddle Bag.",
        "No Coach model fits: buckle-closed saddle messenger with contrast stitching and silver hardware has no counterpart in Classic glove-tanned catalog (City Bag 9790, Court 9870, Station 5130, Willis 9927 all use brass turnlock and tone-matched stitching)",
        "Era reasoning: construction, lining, new-looking leather and blank tag indicate modern handmade non-Coach saddle bag, not pre-2000 Coach",
        "Condition: appears Like New \/ new handmade; no corner wear, stains or hardware tarnish visible in photos 1-4, but bottom, interior and strap fold not fully shown 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: silver-tone buckles, rings, zipper hardware, and clip-like attachments; no readable branding. Hardware appears plated or polished, but material cannot be confirmed.",
        "leather_description": "photo 1: brown smooth-to-lightly-grained leather with tonal variation and visible creasing; seller states goat leather, which is not independently verifiable from photos.",
        "lining_description": "photo 2: dark fabric-lined interior with multiple zippered compartments; exact fiber and condition are not visible clearly enough to identify.",
        "strap_construction": "photos 1 and 3: wide adjustable leather shoulder strap with buckle adjustment and metal attachment hardware.",
        "stitching_description": "photos 1-3: contrasting tan stitching is generally even and visible around the flap and pockets; close-up stitch quality is limited."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0245,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.12,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.82,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather cross-body handbag with a flap, shoulder strap, multiple compartments, and substantial construction.",
                    "photo 1: brown leather and contrasting stitching are compatible with many vintage-style leather bags, but are not Coach-specific identifiers."
                ],
                "negative_evidence": [
                    "photo 1: visible hardware is silver-tone rather than the solid brass commonly associated with classic vintage Coach styles.",
                    "photo 1: the bag uses multiple buckle straps and decorative front hardware rather than a recognizable Coach turnlock.",
                    "photo 1: no legible COACH wordmark, horse-and-carriage, creed patch, or Coach hangtag is visible.",
                    "photo 2: interior view shows generic zippered compartments and lining; no Coach creed or fabric tag is visible.",
                    "photo 3: construction and decorative strap arrangement do not closely match the listed classic Coach saddle, crossbody, or flap models.",
                    "photo 1: seller identifies the material as goat leather and the listing is unbranded; neither supports Coach manufacture."
                ],
                "missing_information": [
                    "A straight-on close-up of every interior wall and pocket for a possible creed patch or fabric tag.",
                    "Close-ups of all hardware, zipper pulls, and any embossed stamps.",
                    "Clear bottom, side, strap-attachment, and interior photographs.",
                    "Seller-stated dimensions and any country-of-origin or maker markings."
                ],
                "authenticity_concerns": [
                    "photo 1: generic unbranded construction and silver-tone hardware provide no Coach-specific evidence.",
                    "photo 2: absence of a visible creed or other brand identifier prevents verification and makes this more consistent with a non-Coach lookalike.",
                    "photo 1: the decorative buckle-and-strap design is not a strong match for the documented vintage Coach catalog."
                ],
                "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 buckles, rings, zipper hardware, and clip-like attachments; no readable branding. Hardware appears plated or polished, but material cannot be confirmed.",
                    "leather_description": "photo 1: brown smooth-to-lightly-grained leather with tonal variation and visible creasing; seller states goat leather, which is not independently verifiable from photos.",
                    "lining_description": "photo 2: dark fabric-lined interior with multiple zippered compartments; exact fiber and condition are not visible clearly enough to identify.",
                    "strap_construction": "photos 1 and 3: wide adjustable leather shoulder strap with buckle adjustment and metal attachment hardware.",
                    "stitching_description": "photos 1-3: contrasting tan stitching is generally even and visible around the flap and pockets; close-up stitch quality is limited."
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because the bag lacks visible Coach identifiers and its silhouette does not closely match a documented Coach classic.",
                    "Condition: approximately Very Good from the visible exterior; leather shows creasing and general handling, but no major tears or broken hardware are visible. Bottom, corners, odor, and full interior condition remain unverified.",
                    "The seller's 'Saddle Bag' wording is treated as a generic style description, not evidence of the Coach Saddle Bag."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1, photo 4: no COACH identifier, creed, wordmark or carriage visible to authenticate",
                    "photo 1, photo 4: buckle closure and silver-tone hardware inconsistent with vintage Coach brass turnlock construction"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 40,
                "estimated_resale_low": 20,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "creed patch straight-on in raking light - not shown in any photo",
                    "interior emptied showing back wall, pockets and any stamps or fabric tags",
                    "bottom with all four corners, both sides and back exterior",
                    "hardware close-ups: buckles, D-rings, zipper pull brand stamp",
                    "hangtag both faces and seller-stated dimensions"
                ],
                "negative_evidence": [
                    "photo 1, photo 3, photo 4: closure is buckle-strap, no turnlock present",
                    "photo 1, photo 4: silver-tone buckles and D-rings, not solid brass vintage Coach hardware",
                    "photo 1, photo 2: high-contrast golden-yellow stitching, not tone-matched Coach stitching",
                    "photo 1, photo 2: no creed patch, no COACH wordmark, no horse-and-carriage visible",
                    "photo 1, photo 4: blank brown rectangular tag with blurred face, not stamped COACH hangtag",
                    "photo 2: tan lined interior with zip, not unlined suede-back glove-tanned classic interior",
                    "photo 1, photo 4: saddle-buckle silhouette with exterior front pocket does not match Coach catalog styles"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": true,
                    "hardware_description": "silver-tone roller buckles on flap strap and shoulder strap, silver-tone D-rings at strap anchors; no brass, no turnlock, no COACH engraving visible",
                    "leather_description": "medium-brown smooth leather with sheen, seller states goat; not matte glove-tanned cowhide with natural patina",
                    "lining_description": "tan fabric lining visible in photo 2 with dark zip pocket; not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "prominent contrast golden-yellow double-row topstitching around flap, body and pocket",
                    "strap_construction": "wide flat adjustable crossbody strap with buckle and holes, attached via D-rings",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: buckle-closed saddle messenger with contrast stitching and silver hardware has no counterpart in Classic glove-tanned catalog (City Bag 9790, Court 9870, Station 5130, Willis 9927 all use brass turnlock and tone-matched stitching)",
                    "Era reasoning: construction, lining, new-looking leather and blank tag indicate modern handmade non-Coach saddle bag, not pre-2000 Coach",
                    "Condition: appears Like New \/ new handmade; no corner wear, stains or hardware tarnish visible in photos 1-4, but bottom, interior and strap fold not fully shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 20623,
            "output_tokens": 845,
            "total_tokens": 21468,
            "estimated_cost_usd": 0.010277
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 21146,
            "output_tokens": 1478,
            "total_tokens": 22624,
            "estimated_cost_usd": 0.005412
        }
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}