Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.015,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.59,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.88,
    "recommended_max_bid": 9,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The bag is shown as a glossy black Y2K-style shoulder\/ho\u200b\u200bbo bag with numerous decorative zippers, studs, straps, and buckles, not a recognizable vintage Coach silhouette.",
        "photo 2: Promotional text explicitly presents it as 'Y2K ENERGY' with bold hardware and utility pockets; no Coach wordmark, carriage, or other Coach identifier is visible.",
        "photo 3: The open interior appears fabric-lined and the bag has many contemporary compartments and zipper pockets, inconsistent with classic unlined glove-tanned Coach construction.",
        "photo 4: The glossy finish, small decorative hardware, and heavily embellished construction are unlike typical vintage Coach leather and solid-brass classic designs.",
        "photo 5: The promotional image shows an approximately 11-inch bag with a narrow fashion shoulder strap; no creed patch, serial, hangtag, or Coach branding is shown.",
        "listing text: Seller identifies the item as unbranded, brand new, trendy, lightweight, and Y2K; this supports a modern generic fashion bag rather than vintage Coach.",
        "photo 4: Y2K moto \/ Balenciaga-style silhouette with multiple exterior zip pockets, center buckle strap and all-over studs - never a vintage Coach classic silhouette",
        "photo 3 and 4: silver-tone hardware throughout including studs, buckles and zippers - inconsistent with 1970s-early 1990s solid brass Coach classics",
        "photo 3 inset: brown fabric lining in main compartment - inconsistent with unlined suede-back vintage Coach glove-tanned classics",
        "photo 1,2,4,5: no turnlock, no leather hangtag, no COACH wordmark or carriage visible",
        "photo 1-5: brand-new marketing \/ stock-style images with 'BRAND NEW' and 'Y2K ENERGY' overlays, seller describes as brand new handmade trendy purse - not vintage production"
    ],
    "missing_information": [
        "photo 1-5: No straight-on interior photo of the actual bag showing any sewn leather creed patch or fabric brand tag.",
        "photo 1-5: No close-up of the actual bag's hardware, zipper pulls, strap attachments, or stitching; the images are primarily promotional graphics and model shots.",
        "photo 1-5: No photo of the bottom, corners, or full strap construction.",
        "photo 1-5: Materials cannot be verified from the promotional images; request a close-up showing the leather grain and edge finishing.",
        "No creed patch or interior identifier shown - photo 3 inset shows only brown lining, no stamp readable",
        "No hardware brand stamps, zipper-pull marks, or Made-in line visible",
        "No true front\/back\/bottom\/interior photos of actual item for sale - all images are marketing graphics with text overlays",
        "No hangtag, wordmark, or horse-and-carriage shown"
    ],
    "authenticity_concerns": [
        "photo 1-5: No Coach identifiers are visible, while the decorative Y2K styling and promotional presentation strongly indicate a generic contemporary bag.",
        "photo 3: The visible lining and multiple-pocket construction are inconsistent with the classic vintage Coach models most likely to be mistaken for unbranded bags.",
        "listing text: The seller's claim of leather is unverified; the glossy finish could indicate coated, synthetic, or faux leather, which would further reduce the likelihood of Coach."
    ],
    "possible_model_reasoning": [
        "The silhouette is a modern embellished Y2K hobo\/shoulder bag, not a close match to the listed vintage Coach catalog models.",
        "No visible creed, serial\/style number, Coach wordmark, horse-and-carriage, or recognizable Coach construction supports a Coach model assignment.",
        "Condition: New\/brand new as seller-stated and shown with promotional 'BRAND NEW' graphics, but actual condition cannot be independently verified from stock-style images.",
        "No Coach model matches: multi-zip studded moto hobo with silver hardware and fabric lining does not correspond to any catalog style in 4.2 or 4.3",
        "Era reasoning: modern fast-fashion Y2K construction, silver hardware, fabric lining, brand-new condition = modern (2000s+), non-Coach",
        "Condition: New per seller and graphics; photo-observable grade New but based only on marketing images, not actual item photos"
    ],
    "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 1-5: Glossy dark\/silver-tone decorative buckles, studs, rings, and multiple zipper pulls are visible; no Coach engraving is legible. A classic Coach turnlock is not visible.",
        "leather_description": "photo 1-5: Smooth glossy black material is visible, but the promotional photos do not establish whether it is leather, coated leather, or synthetic.",
        "lining_description": "photo 3: A brown\/tan fabric-like interior is visible in the promotional cutaway; exact material and construction are not verifiable.",
        "strap_construction": "photo 1-5: Narrow adjustable shoulder strap with metal attachment hardware; promotional images also suggest it may be worn crossbody. Exact construction is not visible.",
        "stitching_description": "photo 1-5: Some decorative seams and stitching are visible, but close-up quality is insufficient to assess stitch consistency or authenticity."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0053,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.01,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The bag is shown as a glossy black Y2K-style shoulder\/ho\u200b\u200bbo bag with numerous decorative zippers, studs, straps, and buckles, not a recognizable vintage Coach silhouette.",
                    "photo 2: Promotional text explicitly presents it as 'Y2K ENERGY' with bold hardware and utility pockets; no Coach wordmark, carriage, or other Coach identifier is visible.",
                    "photo 3: The open interior appears fabric-lined and the bag has many contemporary compartments and zipper pockets, inconsistent with classic unlined glove-tanned Coach construction.",
                    "photo 4: The glossy finish, small decorative hardware, and heavily embellished construction are unlike typical vintage Coach leather and solid-brass classic designs.",
                    "photo 5: The promotional image shows an approximately 11-inch bag with a narrow fashion shoulder strap; no creed patch, serial, hangtag, or Coach branding is shown.",
                    "listing text: Seller identifies the item as unbranded, brand new, trendy, lightweight, and Y2K; this supports a modern generic fashion bag rather than vintage Coach."
                ],
                "missing_information": [
                    "photo 1-5: No straight-on interior photo of the actual bag showing any sewn leather creed patch or fabric brand tag.",
                    "photo 1-5: No close-up of the actual bag's hardware, zipper pulls, strap attachments, or stitching; the images are primarily promotional graphics and model shots.",
                    "photo 1-5: No photo of the bottom, corners, or full strap construction.",
                    "photo 1-5: Materials cannot be verified from the promotional images; request a close-up showing the leather grain and edge finishing."
                ],
                "authenticity_concerns": [
                    "photo 1-5: No Coach identifiers are visible, while the decorative Y2K styling and promotional presentation strongly indicate a generic contemporary bag.",
                    "photo 3: The visible lining and multiple-pocket construction are inconsistent with the classic vintage Coach models most likely to be mistaken for unbranded bags.",
                    "listing text: The seller's claim of leather is unverified; the glossy finish could indicate coated, synthetic, or faux leather, which would further reduce the likelihood of Coach."
                ],
                "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 1-5: Glossy dark\/silver-tone decorative buckles, studs, rings, and multiple zipper pulls are visible; no Coach engraving is legible. A classic Coach turnlock is not visible.",
                    "leather_description": "photo 1-5: Smooth glossy black material is visible, but the promotional photos do not establish whether it is leather, coated leather, or synthetic.",
                    "lining_description": "photo 3: A brown\/tan fabric-like interior is visible in the promotional cutaway; exact material and construction are not verifiable.",
                    "strap_construction": "photo 1-5: Narrow adjustable shoulder strap with metal attachment hardware; promotional images also suggest it may be worn crossbody. Exact construction is not visible.",
                    "stitching_description": "photo 1-5: Some decorative seams and stitching are visible, but close-up quality is insufficient to assess stitch consistency or authenticity."
                },
                "possible_model_reasoning": [
                    "The silhouette is a modern embellished Y2K hobo\/shoulder bag, not a close match to the listed vintage Coach catalog models.",
                    "No visible creed, serial\/style number, Coach wordmark, horse-and-carriage, or recognizable Coach construction supports a Coach model assignment.",
                    "Condition: New\/brand new as seller-stated and shown with promotional 'BRAND NEW' graphics, but actual condition cannot be independently verified from stock-style images."
                ],
                "confidence": 0.88,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 5,
                "image_quality_score": 0.4,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "No creed patch or interior identifier shown - photo 3 inset shows only brown lining, no stamp readable",
                    "No hardware brand stamps, zipper-pull marks, or Made-in line visible",
                    "No true front\/back\/bottom\/interior photos of actual item for sale - all images are marketing graphics with text overlays",
                    "No hangtag, wordmark, or horse-and-carriage shown"
                ],
                "negative_evidence": [
                    "photo 4: Y2K moto \/ Balenciaga-style silhouette with multiple exterior zip pockets, center buckle strap and all-over studs - never a vintage Coach classic silhouette",
                    "photo 3 and 4: silver-tone hardware throughout including studs, buckles and zippers - inconsistent with 1970s-early 1990s solid brass Coach classics",
                    "photo 3 inset: brown fabric lining in main compartment - inconsistent with unlined suede-back vintage Coach glove-tanned classics",
                    "photo 1,2,4,5: no turnlock, no leather hangtag, no COACH wordmark or carriage visible",
                    "photo 1-5: brand-new marketing \/ stock-style images with 'BRAND NEW' and 'Y2K ENERGY' overlays, seller describes as brand new handmade trendy purse - not vintage production"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone studs, buckles, zipper pulls and strap fittings; multiple exterior zippers; no brass turnlock visible",
                    "leather_description": "black glossy smooth finish described by seller as soft durable leather; appears coated \/ fashion leather in marketing images",
                    "lining_description": "brown fabric lining visible in photo 3 main-compartment inset; otherwise not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible - stitching not legible through graphics; seller claims smooth stitching",
                    "strap_construction": "single narrow shoulder strap with buckle adjustment and metal clips, photo 4-5",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model matches: multi-zip studded moto hobo with silver hardware and fabric lining does not correspond to any catalog style in 4.2 or 4.3",
                    "Era reasoning: modern fast-fashion Y2K construction, silver hardware, fabric lining, brand-new condition = modern (2000s+), non-Coach",
                    "Condition: New per seller and graphics; photo-observable grade New but based only on marketing images, not actual item photos"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17795,
            "output_tokens": 956,
            "total_tokens": 18751,
            "estimated_cost_usd": 0.009412
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18311,
            "output_tokens": 1246,
            "total_tokens": 19557,
            "estimated_cost_usd": 0.004659
        }
    ]
}