Vintage Coach Hunter

{
    "is_handbag_probability": 0.94,
    "coach_probability": 0.1,
    "vintage_probability": 0.17,
    "authenticity_confidence": 0.08,
    "image_quality_score": 0.78,
    "seller_misidentification_probability": 0.1,
    "confidence": 0.845,
    "recommended_max_bid": 8,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [
        "Dinky (9375)"
    ],
    "positive_evidence": [
        "photo 5: a circular gold-tone snap appears to contain faint lettering, possibly including COACH, but the small text is not sufficiently legible to verify",
        "photos 1, 3, 5 and 6: compact brown leather flap-purse silhouette and rounded flap are superficially compatible with a small Coach crossbody or Dinky-style bag",
        "photos 1, 3 and 5: the exterior appears to be leather rather than fabric, plastic, or obviously faux material"
    ],
    "negative_evidence": [
        "photos 1, 3 and 5: the closure is a round magnetic snap rather than the characteristic turnlock used on the classic Coach Dinky and many comparable vintage Coach styles",
        "photos 1, 2, 3 and 4: the very thin gold chain strap and bright plated-looking hardware are not typical evidence for a vintage Coach leather crossbody",
        "photo 6: a fabric lining is visible, but no Coach creed, country line, serial\/style number, or interior Coach label is shown",
        "photos 1, 3 and 5: the smooth glossy finish and small generic construction provide little distinguishing Coach evidence",
        "listing text: seller identifies it as No Brand and describes it as lightweight\/NWOT; this is weak context only and does not establish brand",
        "photo 1,3,4: tiny coin-purse scale with thin gold-tone chain crossbody strap - never a vintage Coach construction",
        "photo 5-6: magnetic snap closure with bright gold plating, not solid brass turnlock with correct vintage geometry",
        "photo 1,3,5-6: smooth high-sheen coated leather with black coated interior, not matte glove-tanned cowhide with suede back",
        "photo 1-6: no creed patch, no COACH wordmark, no leather hangtag visible in any view including open interior"
    ],
    "missing_information": [
        "photo 5: a sharply focused, straight-on close-up of the circular snap to determine whether any lettering actually says COACH",
        "full interior wall and all pockets, including any sewn leather creed patch or fabric tag",
        "bottom, side, strap-attachment, and stitching close-ups",
        "close-up of every hardware piece and the reverse of the chain attachments",
        "seller-stated dimensions and a photo with a ruler for scale",
        "photo 5-6: interior fully shown but no stamped leather creed patch or fabric brand tag visible - confirms no identifier",
        "photo 1-6: no COACH wordmark, horse-and-carriage, or hangtag shown from any angle",
        "photo 1,3: hardware engravings \/ zipper brand not shown, but magnetic snap and chain are already non-Coach construction"
    ],
    "authenticity_concerns": [
        "photo 6: visible lining and a generic magnetic-snap\/chain construction do not consistently support a classic vintage Coach Dinky identification",
        "photo 5: any apparent hardware lettering is too indistinct to serve as a reliable Coach identifier; a branded snap alone would not authenticate the bag",
        "no creed or serial is visible in the provided photos, so a transplanted, lookalike, or unbranded bag cannot be ruled out"
    ],
    "possible_model_reasoning": [
        "Dinky (9375) is only a loose silhouette comparison: the compact flap shape and crossbody format fit, but the visible magnetic snap, chain strap, and lining do not establish the classic Coach Dinky construction.",
        "No Coach identifier is visible enough to date the item. The photographed construction is more consistent with an unbranded or modern small leather coin purse than a documented vintage Coach model.",
        "Condition: Like New\/NWOT based on clean-looking exterior and intact hardware in the photos; interior and odor cannot be fully evaluated.",
        "No Coach model matches: tiny magnetic-flap chain coin purse silhouette, chain strap, and magnetic closure are inconsistent with any Classic glove-tanned catalog style like Dinky (9375) or Pocket Purse (9755) which use turnlock and leather strap",
        "Era reasoning: modern fast-fashion construction, plated hardware, coated leather and NWOT condition indicate modern (2000s+), non-Coach",
        "Condition: Like New \/ Mint per seller NWOT; photos 1,3 show clean exterior with sheen, no corner wear, hardware bright, interior clean in photo 5"
    ],
    "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 chain strap and circular magnetic snaps are visible; the snap in photo 5 has faint, unreadable surrounding lettering. No turnlock or hangtag is visible.",
        "leather_description": "Brown smooth, glossy leather-like material is visible; grain and exact leather type cannot be established from these photos.",
        "lining_description": "Photo 6 shows a fabric lining with a light repeating pattern; the pattern is not legible as a Coach logo.",
        "strap_construction": "Thin gold-tone chain attached at side\/top loops; no leather shoulder strap is visible.",
        "stitching_description": "Visible perimeter stitching appears fairly even, though close-up stitch quality and seam construction cannot be fully assessed."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0067,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.18,
                "vintage_probability": 0.32,
                "authenticity_confidence": 0.14,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.18,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [
                    "Dinky (9375)"
                ],
                "positive_evidence": [
                    "photo 5: a circular gold-tone snap appears to contain faint lettering, possibly including COACH, but the small text is not sufficiently legible to verify",
                    "photos 1, 3, 5 and 6: compact brown leather flap-purse silhouette and rounded flap are superficially compatible with a small Coach crossbody or Dinky-style bag",
                    "photos 1, 3 and 5: the exterior appears to be leather rather than fabric, plastic, or obviously faux material"
                ],
                "negative_evidence": [
                    "photos 1, 3 and 5: the closure is a round magnetic snap rather than the characteristic turnlock used on the classic Coach Dinky and many comparable vintage Coach styles",
                    "photos 1, 2, 3 and 4: the very thin gold chain strap and bright plated-looking hardware are not typical evidence for a vintage Coach leather crossbody",
                    "photo 6: a fabric lining is visible, but no Coach creed, country line, serial\/style number, or interior Coach label is shown",
                    "photos 1, 3 and 5: the smooth glossy finish and small generic construction provide little distinguishing Coach evidence",
                    "listing text: seller identifies it as No Brand and describes it as lightweight\/NWOT; this is weak context only and does not establish brand"
                ],
                "missing_information": [
                    "photo 5: a sharply focused, straight-on close-up of the circular snap to determine whether any lettering actually says COACH",
                    "full interior wall and all pockets, including any sewn leather creed patch or fabric tag",
                    "bottom, side, strap-attachment, and stitching close-ups",
                    "close-up of every hardware piece and the reverse of the chain attachments",
                    "seller-stated dimensions and a photo with a ruler for scale"
                ],
                "authenticity_concerns": [
                    "photo 6: visible lining and a generic magnetic-snap\/chain construction do not consistently support a classic vintage Coach Dinky identification",
                    "photo 5: any apparent hardware lettering is too indistinct to serve as a reliable Coach identifier; a branded snap alone would not authenticate the bag",
                    "no creed or serial is visible in the provided photos, so a transplanted, lookalike, or unbranded bag cannot be ruled out"
                ],
                "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 chain strap and circular magnetic snaps are visible; the snap in photo 5 has faint, unreadable surrounding lettering. No turnlock or hangtag is visible.",
                    "leather_description": "Brown smooth, glossy leather-like material is visible; grain and exact leather type cannot be established from these photos.",
                    "lining_description": "Photo 6 shows a fabric lining with a light repeating pattern; the pattern is not legible as a Coach logo.",
                    "strap_construction": "Thin gold-tone chain attached at side\/top loops; no leather shoulder strap is visible.",
                    "stitching_description": "Visible perimeter stitching appears fairly even, though close-up stitch quality and seam construction cannot be fully assessed."
                },
                "possible_model_reasoning": [
                    "Dinky (9375) is only a loose silhouette comparison: the compact flap shape and crossbody format fit, but the visible magnetic snap, chain strap, and lining do not establish the classic Coach Dinky construction.",
                    "No Coach identifier is visible enough to date the item. The photographed construction is more consistent with an unbranded or modern small leather coin purse than a documented vintage Coach model.",
                    "Condition: Like New\/NWOT based on clean-looking exterior and intact hardware in the photos; interior and odor cannot be fully evaluated."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "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": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.9,
                "missing_information": [
                    "photo 5-6: interior fully shown but no stamped leather creed patch or fabric brand tag visible - confirms no identifier",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, or hangtag shown from any angle",
                    "photo 1,3: hardware engravings \/ zipper brand not shown, but magnetic snap and chain are already non-Coach construction"
                ],
                "negative_evidence": [
                    "photo 1,3,4: tiny coin-purse scale with thin gold-tone chain crossbody strap - never a vintage Coach construction",
                    "photo 5-6: magnetic snap closure with bright gold plating, not solid brass turnlock with correct vintage geometry",
                    "photo 1,3,5-6: smooth high-sheen coated leather with black coated interior, not matte glove-tanned cowhide with suede back",
                    "photo 1-6: no creed patch, no COACH wordmark, no leather hangtag visible in any view including open interior"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone thin chain strap and large magnetic snap discs; shiny plated appearance, not heavy solid brass turnlock, buckle or dogleash hardware",
                    "leather_description": "smooth dark brown coated leather with high sheen and uniform grain, modern fast-fashion appearance, not matte glove-tanned full-grain cowhide",
                    "lining_description": "black smooth coated interior visible in photo 5-6, no suede back, no slip or zip pocket, no creed patch",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "small even edge stitching around flap and body visible in photo 5-6, no mismatched thread but no vintage Coach stress-point detailing visible",
                    "strap_construction": "thin gold-tone metal link chain attached with small rings, non-adjustable, non-leather",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model matches: tiny magnetic-flap chain coin purse silhouette, chain strap, and magnetic closure are inconsistent with any Classic glove-tanned catalog style like Dinky (9375) or Pocket Purse (9755) which use turnlock and leather strap",
                    "Era reasoning: modern fast-fashion construction, plated hardware, coated leather and NWOT condition indicate modern (2000s+), non-Coach",
                    "Condition: Like New \/ Mint per seller NWOT; photos 1,3 show clean exterior with sheen, no corner wear, hardware bright, interior clean in photo 5"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.02
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18134,
            "output_tokens": 1153,
            "total_tokens": 19287,
            "estimated_cost_usd": 0.010021
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18648,
            "output_tokens": 1263,
            "total_tokens": 19911,
            "estimated_cost_usd": 0.00474
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}