Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.03,
    "vintage_probability": 0.04,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.485,
    "seller_misidentification_probability": 0.105,
    "confidence": 0.685,
    "recommended_max_bid": 15,
    "estimated_resale_low": 10,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: three handbags present as a lot on a chair"
    ],
    "negative_evidence": [
        "photo 1: the lot visibly contains three handbags, but none shows a legible COACH wordmark, horse-and-carriage, creed patch, or recognizable vintage Coach construction.",
        "photo 3: the multicolored plaid bag has a decorative geometric clasp and silver-tone hardware rather than the classic Coach turnlock geometry.",
        "photo 4: the white\/tan bag uses glossy-looking material, contrast trim, and a contemporary rectangular clasp, not typical vintage glove-tanned Coach construction.",
        "photo 6: the black bag has a soft, heavily textured body and modern zippered multi-compartment styling; no Coach identifier is visible.",
        "photos 1-7: the visible bags appear lined or constructed with synthetic-looking materials and plated silver-tone hardware, which is inconsistent with most classic 1970s-1990s Coach silhouettes.",
        "photo 1-4: left bag is colorful plaid fabric with tan faux-leather trim and silver-tone turn-tab - fabric body and plated hardware inconsistent with vintage glove-tanned Coach",
        "photo 1,2,4: center white\/tan bag is smooth coated synthetic-looking material with silver-tone decorative twist hardware, zip top, no brass turnlock, no creed, no hangtag",
        "photo 1,2,5,6: right black bag is pebbled faux-leather-look zip-top tote with fabric-appearing strap and silver-tone zipper - no solid brass, no turnlock, no Coach silhouette",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag legible on any bag"
    ],
    "missing_information": [
        "Interior photos of each bag, including the back wall, pockets, labels, and any creed patches.",
        "Straight-on close-ups of all hardware, zipper pulls, clasps, and any hangtags.",
        "Bottom, side, strap-anchor, and stitching photos for each bag.",
        "Seller-stated dimensions, material information, and close-ups of any hidden brand or care labels.",
        "photo 1-6: no interior, creed patch, or maker's label shown for any of the three bags",
        "photo 1-6: no legible hardware engraving or zipper-pull brand shown",
        "photo 1-6: no bottom, close-up stitching, lining, or scale\/dimensions shown"
    ],
    "authenticity_concerns": [
        "photo 3: the geometric ornamental clasp on the plaid bag is a lookalike-style feature, not a visible Coach identifier.",
        "photos 4 and 6: modern-looking plated hardware and contemporary construction provide no support for vintage Coach manufacture.",
        "photos 1-7: absence of any visible Coach identifier across a three-bag lot substantially limits the possibility of Coach attribution; interiors are not shown, so hidden labels cannot be assessed."
    ],
    "possible_model_reasoning": [
        "No Coach model is supportable from the visible silhouettes or hardware. The plaid bag's textile-and-trim design and decorative clasp do not match the listed classic Coach model cues.",
        "The white\/tan bag is a contemporary structured shoulder\/tote style with a rectangular clasp, not a clear Willis, Court, Station, or City Bag match.",
        "The black bag is a contemporary soft multi-compartment shoulder bag; its silhouette alone is insufficient for Coach attribution.",
        "Condition: approximately Good to Very Good for the visible exteriors, with creasing, surface marks, and handling wear apparent on some bags; interiors, odor, mold, and functional condition are unknown.",
        "No Coach model match: silhouettes are modern zip-top \/ decorative twist-lock shoulder bags with fabric and faux-leather materials and silver-tone hardware, inconsistent with any 1970s-1990s glove-tanned catalog style",
        "Serial decode: none - no number visible",
        "Era reasoning: materials, silver-tone hardware, zip tops and plaid fabric indicate modern (2000s+) non-Coach manufacture",
        "Condition: Good to Very Good as used modern bags based on exterior only; interiors, bottoms and strap folds not shown so lining and full grade unknown"
    ],
    "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 3: silver-tone decorative geometric clasp and silver-tone strap hardware on the plaid bag. photo 4: rectangular silver-tone clasp on the white\/tan bag. photo 6: silver-tone zipper hardware on the black bag. No vintage Coach-style brass turnlock is visible.",
        "leather_description": "photo 3: plaid textile body with tan contrast trim. photo 4: smooth glossy white\/tan material that appears synthetic or coated. photo 6: black pebbled-looking material; genuine leather cannot be established from these photos.",
        "lining_description": "not_visible",
        "strap_construction": "photos 1-7: shoulder straps and handles are visible on the bags, including tan contrast handles on the plaid and white\/tan bags; full strap construction and attachment details are not shown.",
        "stitching_description": "photos 3-6: visible machine stitching is generally even, but the images do not provide sufficient detail to assess Coach-specific construction."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0036,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.04,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.62,
                "seller_misidentification_probability": 0.18,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: the lot visibly contains three handbags, but none shows a legible COACH wordmark, horse-and-carriage, creed patch, or recognizable vintage Coach construction.",
                    "photo 3: the multicolored plaid bag has a decorative geometric clasp and silver-tone hardware rather than the classic Coach turnlock geometry.",
                    "photo 4: the white\/tan bag uses glossy-looking material, contrast trim, and a contemporary rectangular clasp, not typical vintage glove-tanned Coach construction.",
                    "photo 6: the black bag has a soft, heavily textured body and modern zippered multi-compartment styling; no Coach identifier is visible.",
                    "photos 1-7: the visible bags appear lined or constructed with synthetic-looking materials and plated silver-tone hardware, which is inconsistent with most classic 1970s-1990s Coach silhouettes."
                ],
                "missing_information": [
                    "Interior photos of each bag, including the back wall, pockets, labels, and any creed patches.",
                    "Straight-on close-ups of all hardware, zipper pulls, clasps, and any hangtags.",
                    "Bottom, side, strap-anchor, and stitching photos for each bag.",
                    "Seller-stated dimensions, material information, and close-ups of any hidden brand or care labels."
                ],
                "authenticity_concerns": [
                    "photo 3: the geometric ornamental clasp on the plaid bag is a lookalike-style feature, not a visible Coach identifier.",
                    "photos 4 and 6: modern-looking plated hardware and contemporary construction provide no support for vintage Coach manufacture.",
                    "photos 1-7: absence of any visible Coach identifier across a three-bag lot substantially limits the possibility of Coach attribution; interiors are not shown, so hidden labels cannot be assessed."
                ],
                "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 3: silver-tone decorative geometric clasp and silver-tone strap hardware on the plaid bag. photo 4: rectangular silver-tone clasp on the white\/tan bag. photo 6: silver-tone zipper hardware on the black bag. No vintage Coach-style brass turnlock is visible.",
                    "leather_description": "photo 3: plaid textile body with tan contrast trim. photo 4: smooth glossy white\/tan material that appears synthetic or coated. photo 6: black pebbled-looking material; genuine leather cannot be established from these photos.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1-7: shoulder straps and handles are visible on the bags, including tan contrast handles on the plaid and white\/tan bags; full strap construction and attachment details are not shown.",
                    "stitching_description": "photos 3-6: visible machine stitching is generally even, but the images do not provide sufficient detail to assess Coach-specific construction."
                },
                "possible_model_reasoning": [
                    "No Coach model is supportable from the visible silhouettes or hardware. The plaid bag's textile-and-trim design and decorative clasp do not match the listed classic Coach model cues.",
                    "The white\/tan bag is a contemporary structured shoulder\/tote style with a rectangular clasp, not a clear Willis, Court, Station, or City Bag match.",
                    "The black bag is a contemporary soft multi-compartment shoulder bag; its silhouette alone is insufficient for Coach attribution.",
                    "Condition: approximately Good to Very Good for the visible exteriors, with creasing, surface marks, and handling wear apparent on some bags; interiors, odor, mold, and functional condition are unknown."
                ],
                "confidence": 0.72,
                "recommended_max_bid": null,
                "estimated_resale_low": 10,
                "estimated_resale_high": 50
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.65,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.35,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo 1-6: no interior, creed patch, or maker's label shown for any of the three bags",
                    "photo 1-6: no legible hardware engraving or zipper-pull brand shown",
                    "photo 1-6: no bottom, close-up stitching, lining, or scale\/dimensions shown"
                ],
                "negative_evidence": [
                    "photo 1-4: left bag is colorful plaid fabric with tan faux-leather trim and silver-tone turn-tab - fabric body and plated hardware inconsistent with vintage glove-tanned Coach",
                    "photo 1,2,4: center white\/tan bag is smooth coated synthetic-looking material with silver-tone decorative twist hardware, zip top, no brass turnlock, no creed, no hangtag",
                    "photo 1,2,5,6: right black bag is pebbled faux-leather-look zip-top tote with fabric-appearing strap and silver-tone zipper - no solid brass, no turnlock, no Coach silhouette",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag legible on any bag"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone generic hardware; center white bag has rectangular twist-lock trim plate (photo 4); plaid bag has silver-tone turn-tab and zipper pulls (photo 3); black bag has dark metal zipper (photo 5); no solid brass, no COACH stamping visible",
                    "leather_description": "no glove-tanned leather visible; left bag plaid woven fabric with smooth tan trim (photo 3); center bag smooth white\/tan coated material with sheen suggesting faux leather (photo 4); right bag black pebbled grain faux-leather-look material (photo 5)",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible in detail; light contrast topstitching visible on straps and trim in photo 3-4 but focus too soft to assess evenness",
                    "strap_construction": "fixed short shoulder straps\/handles on all three; plaid and white bags have rolled faux-leather handles with rivet tabs (photo 3-4); black bag has flat wide shoulder strap (photo 5)",
                    "turnlock_present": true
                },
                "positive_evidence": [
                    "photo 1: three handbags present as a lot on a chair"
                ],
                "possible_model_reasoning": [
                    "No Coach model match: silhouettes are modern zip-top \/ decorative twist-lock shoulder bags with fabric and faux-leather materials and silver-tone hardware, inconsistent with any 1970s-1990s glove-tanned catalog style",
                    "Serial decode: none - no number visible",
                    "Era reasoning: materials, silver-tone hardware, zip tops and plaid fabric indicate modern (2000s+) non-Coach manufacture",
                    "Condition: Good to Very Good as used modern bags based on exterior only; interiors, bottoms and strap folds not shown so lining and full grade unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.04
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28768,
            "output_tokens": 921,
            "total_tokens": 29689,
            "estimated_cost_usd": 0.013718
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30080,
            "output_tokens": 1434,
            "total_tokens": 31514,
            "estimated_cost_usd": 0.007163
        }
    ]
}