Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.025,
    "vintage_probability": 0.055,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.74,
    "seller_misidentification_probability": 0.03,
    "confidence": 0.875,
    "recommended_max_bid": 15,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a leather crossbody messenger-style handbag with a flap and shoulder strap",
        "photo 4: interior and flap construction are visible, supporting handbag triage",
        "photo 1: seller identifies the material as goat leather, which is consistent with a handmade leather bag but does not support Coach manufacture"
    ],
    "negative_evidence": [
        "photo 1: no visible Coach wordmark, horse-and-carriage logo, or leather Coach hangtag",
        "photo 1: flap closure uses small snap\/button hardware rather than a recognizable vintage Coach turnlock",
        "photo 1: visible shoulder strap includes broad textile\/webbing sections and construction unlike classic vintage Coach leather straps",
        "photo 4: interior is visibly lined in green fabric or suede-like material, with no Coach creed patch visible",
        "photos 1-6: overall styling and prominent handmade\/product-brand watermark are inconsistent with a documented Coach classic silhouette",
        "listing text: seller explicitly describes it as handmade goat leather and unbranded",
        "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible",
        "photo 5-6: dark green canvas fabric lining under flap, not unlined suede-back glove-tanned leather",
        "photo 5-6: flap closure is round snap buttons, not Coach turnlock",
        "photo 1-4: contrasting light-tan perimeter stitching and thin goatskin with mottled finish, not vintage Coach glove-tanned construction",
        "photo 1-6: large flap messenger \/ laptop silhouette with wide fabric-backed strap not matching any vintage Coach catalog style",
        "listing title states Handmade Goat Leather Messenger Bag, consistent with modern artisan bag"
    ],
    "missing_information": [
        "photo 4-6: a straight-on close-up of every interior wall and pocket is needed to conclusively exclude a hidden creed or brand label",
        "photo 1-3: close-ups of all hardware and strap attachment points would clarify construction",
        "photo 1-3: bottom, side, and corner close-ups are not provided",
        "seller-stated dimensions and country of manufacture are not provided",
        "photo of interior compartment emptied and any interior leather patch or brand stamp",
        "close-up of hardware engravings and snap closure brand",
        "bottom, corners and strap attachment detail"
    ],
    "authenticity_concerns": [
        "No Coach identifiers are visible in the supplied photos; the bag appears to be an unbranded handmade leather messenger rather than a Coach product",
        "The handmade construction, snap closures, textile\/webbing strap elements, and lined interior do not match the usual construction cues of vintage Coach glove-tanned classics"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match: the bag is a large flap messenger with snap closures, not a clearly identifiable City Bag, Willis, Court, Station, or other catalog classic.",
        "Estimated era is modern (2000s+), non-Coach based on the seller's handmade product presentation, visible lined construction, and lack of vintage Coach identifiers.",
        "Condition appears Like New or Excellent from the staged product photos, but actual wear, odor, and durability cannot be confirmed.",
        "No Coach identifier visible in any of 6 photos: no creed, no wordmark, no hangtag, no turnlock",
        "Construction (fabric-lined flap, snap closure, thin goat leather, contrast stitching, modern messenger form) inconsistent with 1970s-1990s Coach classics and with modern Coach lines",
        "Condition: appears Like New \/ new handmade; no corner wear visible in photos 1-4, but bottom, interior and strap wear not 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 4: small round snap\/button closures are visible on the flap and interior; no Coach engraving is visible. photo 1: metal strap hardware appears brass-tone, but details are not close enough to identify the manufacturer.",
        "leather_description": "photos 1-3: brown, smooth-to-mildly textured leather with visible tonal variation, creasing, and a handmade\/distressed appearance; seller states goat leather, which is not independently verifiable from photos.",
        "lining_description": "photos 4-6: green fabric or suede-like lining is visible beneath the flap; no creed or brand label is visible.",
        "strap_construction": "photos 1-4: adjustable shoulder strap with broad brown textile\/webbing sections and leather attachment details; exact construction and material are not fully visible.",
        "stitching_description": "photos 1-4: contrasting light stitching appears generally even around the flap and edges; some construction details are obscured by the strap and framing."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.003,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.08,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a leather crossbody messenger-style handbag with a flap and shoulder strap",
                    "photo 4: interior and flap construction are visible, supporting handbag triage",
                    "photo 1: seller identifies the material as goat leather, which is consistent with a handmade leather bag but does not support Coach manufacture"
                ],
                "negative_evidence": [
                    "photo 1: no visible Coach wordmark, horse-and-carriage logo, or leather Coach hangtag",
                    "photo 1: flap closure uses small snap\/button hardware rather than a recognizable vintage Coach turnlock",
                    "photo 1: visible shoulder strap includes broad textile\/webbing sections and construction unlike classic vintage Coach leather straps",
                    "photo 4: interior is visibly lined in green fabric or suede-like material, with no Coach creed patch visible",
                    "photos 1-6: overall styling and prominent handmade\/product-brand watermark are inconsistent with a documented Coach classic silhouette",
                    "listing text: seller explicitly describes it as handmade goat leather and unbranded"
                ],
                "missing_information": [
                    "photo 4-6: a straight-on close-up of every interior wall and pocket is needed to conclusively exclude a hidden creed or brand label",
                    "photo 1-3: close-ups of all hardware and strap attachment points would clarify construction",
                    "photo 1-3: bottom, side, and corner close-ups are not provided",
                    "seller-stated dimensions and country of manufacture are not provided"
                ],
                "authenticity_concerns": [
                    "No Coach identifiers are visible in the supplied photos; the bag appears to be an unbranded handmade leather messenger rather than a Coach product",
                    "The handmade construction, snap closures, textile\/webbing strap elements, and lined interior do not match the usual construction cues of vintage Coach glove-tanned classics"
                ],
                "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 4: small round snap\/button closures are visible on the flap and interior; no Coach engraving is visible. photo 1: metal strap hardware appears brass-tone, but details are not close enough to identify the manufacturer.",
                    "leather_description": "photos 1-3: brown, smooth-to-mildly textured leather with visible tonal variation, creasing, and a handmade\/distressed appearance; seller states goat leather, which is not independently verifiable from photos.",
                    "lining_description": "photos 4-6: green fabric or suede-like lining is visible beneath the flap; no creed or brand label is visible.",
                    "strap_construction": "photos 1-4: adjustable shoulder strap with broad brown textile\/webbing sections and leather attachment details; exact construction and material are not fully visible.",
                    "stitching_description": "photos 1-4: contrasting light stitching appears generally even around the flap and edges; some construction details are obscured by the strap and framing."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match: the bag is a large flap messenger with snap closures, not a clearly identifiable City Bag, Willis, Court, Station, or other catalog classic.",
                    "Estimated era is modern (2000s+), non-Coach based on the seller's handmade product presentation, visible lined construction, and lack of vintage Coach identifiers.",
                    "Condition appears Like New or Excellent from the staged product photos, but actual wear, odor, and durability cannot be confirmed."
                ],
                "confidence": 0.9,
                "recommended_max_bid": 15,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "photo of interior compartment emptied and any interior leather patch or brand stamp",
                    "close-up of hardware engravings and snap closure brand",
                    "bottom, corners and strap attachment detail"
                ],
                "negative_evidence": [
                    "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible",
                    "photo 5-6: dark green canvas fabric lining under flap, not unlined suede-back glove-tanned leather",
                    "photo 5-6: flap closure is round snap buttons, not Coach turnlock",
                    "photo 1-4: contrasting light-tan perimeter stitching and thin goatskin with mottled finish, not vintage Coach glove-tanned construction",
                    "photo 1-6: large flap messenger \/ laptop silhouette with wide fabric-backed strap not matching any vintage Coach catalog style",
                    "listing title states Handmade Goat Leather Messenger Bag, consistent with modern artisan bag"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone round snap buttons on flap (photo 5-6) and small D-rings \/ rivets at strap anchors; no turnlock, no engraved COACH visible",
                    "leather_description": "medium-brown smooth thin leather with mottled burnished finish, described by seller as goat leather; not thick glove-tanned cowhide with patina",
                    "lining_description": "dark green canvas \/ fabric lining visible on underside of flap in photo 5-6; interior compartment not shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "contrasting light tan stitching around flap perimeter and strap edges, even but not tone-matched as on vintage Coach",
                    "strap_construction": "wide flat brown leather crossbody \/ shoulder strap, adjustable, attached with D-rings and rivets; full length and buckle holes not shown",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any of 6 photos: no creed, no wordmark, no hangtag, no turnlock",
                    "Construction (fabric-lined flap, snap closure, thin goat leather, contrast stitching, modern messenger form) inconsistent with 1970s-1990s Coach classics and with modern Coach lines",
                    "Condition: appears Like New \/ new handmade; no corner wear visible in photos 1-4, but bottom, interior and strap wear not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 19055,
            "output_tokens": 909,
            "total_tokens": 19964,
            "estimated_cost_usd": 0.009804
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 19708,
            "output_tokens": 1252,
            "total_tokens": 20960,
            "estimated_cost_usd": 0.004943
        }
    ]
}