Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.025,
    "vintage_probability": 0.07,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.805,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.89,
    "recommended_max_bid": 17.5,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a structured leather handbag with top handles and a Boston\/medicine-bag silhouette",
        "photo 3: leather fastening straps and gold-tone hardware are visible",
        "photo 1: brown leather handbag with brass-tone hardware - general population where vintage Coach hides, but no specific Coach identifier"
    ],
    "negative_evidence": [
        "photo 3: oversized polished clasp is a box-style lock, not a typical vintage Coach turnlock",
        "photo 5: interior is black synthetic fabric-lined with zippered compartments, unlike classic unlined glove-tanned Coach construction",
        "photos 1-6: no Coach wordmark, horse-and-carriage, creed patch, serial\/style number, or Coach hangtag is visible",
        "photos 1-4: highly structured doctor-bag construction and decorative hardware do not closely match the listed vintage Coach catalog silhouettes",
        "listing text: seller identifies the maker as The Professional Case Inc.; this is seller-stated and not independently verified in the photos",
        "photo 3, photo 4: closure is bright gold-tone plated key \/ push-lock with keyhole, not Coach turnlock geometry",
        "photo 5, photo 6: interior is black synthetic fabric lining with two zip pockets, not unlined suede-back glove-tanned leather",
        "photo 1, photo 2, photo 5: doctor \/ medicine-bag silhouette with rigid frame, dual buckle straps and short rolled handles, no Coach catalog silhouette match",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
        "photo 3: hardware is bright shiny plated gold-tone, not vintage solid brass with warm dull patina"
    ],
    "missing_information": [
        "photo 1-6: no underside or maker-label photo is provided",
        "photo 5-6: interior label, care tag, and any maker stamp are not shown",
        "photo 1-6: seller-stated dimensions and country of manufacture are not visible or independently verifiable",
        "photo of maker's mark \/ brand stamp for Professional Case Inc to confirm stated maker",
        "exterior bottom and corner close-ups to confirm condition grade",
        "seller-stated dimensions for scale"
    ],
    "authenticity_concerns": [],
    "possible_model_reasoning": [
        "The silhouette is consistent with a structured Boston-style medicine or professional case, matching the seller's stated description rather than a recognizable Coach model.",
        "The black fabric lining and ornate box clasp point toward a later or non-Coach professional-case design, not a classic unlined Coach glove-tanned style.",
        "Condition: Excellent or near-new visually; leather appears clean and intact, with no obvious corner wear, though the bottom, hardware function, odor, and maker label are not fully documented.",
        "No Coach model fits: doctor\/medicine-bag frame with key-lock, lined synthetic interior and plated hardware is inconsistent with vintage Coach glove-tanned classics; seller text identifies as Professional Case Inc Heritage Collection Boston Style Bag, consistent with photos",
        "Condition: Like New \/ Mint to Excellent per seller new without tags, never used; photos show clean exterior, shiny hardware, clean interior; tiny scratch on fastening strap stated but not clearly visible; no bottom-corner view 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": "Gold-tone polished box clasp, buckles, rings, and zipper pulls visible in photos 2-6; the central clasp is decorative\/box-style rather than a vintage Coach turnlock.",
        "leather_description": "Brown structured leather with visible natural-looking grain and surface creasing; exact leather type cannot be determined from photos.",
        "lining_description": "Black synthetic-looking fabric lining visible in photos 5-6, with two interior zippered compartments.",
        "strap_construction": "Two fixed rolled top handles with stitched leather handle attachments; side strap\/buckle details are visible, but no detachable shoulder strap is shown.",
        "stitching_description": "Generally straight, even dark contrasting stitching is visible along the body, handles, straps, and trim."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0006,
    "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": 0.86,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a structured leather handbag with top handles and a Boston\/medicine-bag silhouette",
                    "photo 3: leather fastening straps and gold-tone hardware are visible"
                ],
                "negative_evidence": [
                    "photo 3: oversized polished clasp is a box-style lock, not a typical vintage Coach turnlock",
                    "photo 5: interior is black synthetic fabric-lined with zippered compartments, unlike classic unlined glove-tanned Coach construction",
                    "photos 1-6: no Coach wordmark, horse-and-carriage, creed patch, serial\/style number, or Coach hangtag is visible",
                    "photos 1-4: highly structured doctor-bag construction and decorative hardware do not closely match the listed vintage Coach catalog silhouettes",
                    "listing text: seller identifies the maker as The Professional Case Inc.; this is seller-stated and not independently verified in the photos"
                ],
                "missing_information": [
                    "photo 1-6: no underside or maker-label photo is provided",
                    "photo 5-6: interior label, care tag, and any maker stamp are not shown",
                    "photo 1-6: seller-stated dimensions and country of manufacture are not visible or independently verifiable"
                ],
                "authenticity_concerns": [],
                "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": "Gold-tone polished box clasp, buckles, rings, and zipper pulls visible in photos 2-6; the central clasp is decorative\/box-style rather than a vintage Coach turnlock.",
                    "leather_description": "Brown structured leather with visible natural-looking grain and surface creasing; exact leather type cannot be determined from photos.",
                    "lining_description": "Black synthetic-looking fabric lining visible in photos 5-6, with two interior zippered compartments.",
                    "strap_construction": "Two fixed rolled top handles with stitched leather handle attachments; side strap\/buckle details are visible, but no detachable shoulder strap is shown.",
                    "stitching_description": "Generally straight, even dark contrasting stitching is visible along the body, handles, straps, and trim."
                },
                "possible_model_reasoning": [
                    "The silhouette is consistent with a structured Boston-style medicine or professional case, matching the seller's stated description rather than a recognizable Coach model.",
                    "The black fabric lining and ornate box clasp point toward a later or non-Coach professional-case design, not a classic unlined Coach glove-tanned style.",
                    "Condition: Excellent or near-new visually; leather appears clean and intact, with no obvious corner wear, though the bottom, hardware function, odor, and maker label are not fully documented."
                ],
                "confidence": 0.9,
                "recommended_max_bid": 20,
                "estimated_resale_low": 15,
                "estimated_resale_high": 50
            }
        },
        {
            "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": 45,
                "estimated_resale_low": 20,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo of maker's mark \/ brand stamp for Professional Case Inc to confirm stated maker",
                    "exterior bottom and corner close-ups to confirm condition grade",
                    "seller-stated dimensions for scale"
                ],
                "negative_evidence": [
                    "photo 3, photo 4: closure is bright gold-tone plated key \/ push-lock with keyhole, not Coach turnlock geometry",
                    "photo 5, photo 6: interior is black synthetic fabric lining with two zip pockets, not unlined suede-back glove-tanned leather",
                    "photo 1, photo 2, photo 5: doctor \/ medicine-bag silhouette with rigid frame, dual buckle straps and short rolled handles, no Coach catalog silhouette match",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
                    "photo 3: hardware is bright shiny plated gold-tone, not vintage solid brass with warm dull patina"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright shiny gold-tone plated hardware: rectangular key-lock clasp with keyhole, square buckles, D-rings and rivets; reflective polished finish, not dull solid brass",
                    "leather_description": "medium brown pebbled-grain leather, stiff and structured with sheen, doctor-bag body with reinforced corners",
                    "lining_description": "black smooth synthetic lining with zippered pockets on both side walls visible in photo 5-6",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "dark even straight stitching along straps and trim, visible in photo 1 and photo 3",
                    "strap_construction": "two short rolled top handles attached with buckle straps and gold-tone rings; central fastening strap with lock; no detachable crossbody strap",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: brown leather handbag with brass-tone hardware - general population where vintage Coach hides, but no specific Coach identifier"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: doctor\/medicine-bag frame with key-lock, lined synthetic interior and plated hardware is inconsistent with vintage Coach glove-tanned classics; seller text identifies as Professional Case Inc Heritage Collection Boston Style Bag, consistent with photos",
                    "Condition: Like New \/ Mint to Excellent per seller new without tags, never used; photos show clean exterior, shiny hardware, clean interior; tiny scratch on fastening strap stated but not clearly visible; no bottom-corner view so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.1
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18153,
            "output_tokens": 803,
            "total_tokens": 18956,
            "estimated_cost_usd": 0.009188
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18704,
            "output_tokens": 1295,
            "total_tokens": 19999,
            "estimated_cost_usd": 0.004777
        }
    ]
}