Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.055,
    "vintage_probability": 0.085,
    "authenticity_confidence": 0.05,
    "image_quality_score": 0.77,
    "seller_misidentification_probability": 0.135,
    "confidence": 0.8,
    "recommended_max_bid": 15,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 42.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a leather crossbody handbag with a front flap, buckle detail, adjustable strap, and zippered top.",
        "photo 2: Brown leather appearance and generally neat exterior stitching are compatible with many contemporary leather handbags.",
        "photo 1: leather small crossbody with brass-tone hardware in brown - broad population where vintage Coach hides",
        "photo 5,6: unlined suede-like interior, which is consistent with leather bags generally but not specific to Coach"
    ],
    "negative_evidence": [
        "photo 1: Front closure is a buckle-and-snap design, not a recognizable vintage Coach turnlock.",
        "photo 1: No Coach wordmark, horse-and-carriage, or leather Coach hangtag is visible.",
        "photo 2: Back construction and decorative flower-like mark do not provide a visible Coach identifier.",
        "photo 5: Interior is fabric-lined and has no visible Coach creed patch or wordmark.",
        "photo 6: Interior pocket area is visible but contains no legible Coach label or serial marking.",
        "photo 7: Hardware appears mixed gold- and silver-tone, which is atypical for a classic vintage Coach bag.",
        "photo 1: no turnlock - envelope flap with decorative buckle strap and top zip, not Coach turnlock geometry",
        "photo 1,2,3,4,5,6: no COACH wordmark, horse-and-carriage, or creed patch visible",
        "photo 2: small embossed non-Coach motif on lower right back panel, consistent with Patricia Nash branding, not Coach",
        "photo 4,5,6: interior layout with magnetic-snap front pocket, zip compartment and card slots does not match vintage Coach classic layout of zip + slip under turnlock flap",
        "photo 1: silhouette - small zip-top crossbody with exterior envelope buckle pocket does not match any catalog Coach classic style"
    ],
    "missing_information": [
        "A straight-on close-up of every interior label, patch, or fabric tag.",
        "Close-ups of the exterior decorative mark, zipper pull, buckle, and strap hardware.",
        "A full side and strap-detail view, including the adjustment holes and attachment points.",
        "Seller-stated dimensions and material information.",
        "photo of embossed mark on back panel close-up in raking light to confirm maker (photo 2)",
        "photo of any interior brand tag \/ fabric tag in pocket seams",
        "photo of zipper-pull brand stamp and buckle back",
        "seller-stated dimensions and strap length for scale"
    ],
    "authenticity_concerns": [
        "The bag has no visible Coach identifier and its contemporary zippered, lined construction does not closely match the classic vintage Coach styles in the reference catalog.",
        "The title identifies Patricia Nash, but the visible photos do not show a Patricia Nash label or other brand proof; the brand remains unverified."
    ],
    "possible_model_reasoning": [
        "The silhouette is a small contemporary crossbody with a zippered top and buckle-detail flap, but it does not match a clearly identifiable Coach catalog model from the visible evidence.",
        "The absence of a visible creed, serial\/style number, Coach wordmark, or Coach-specific hardware leaves Coach manufacture unlikely.",
        "Condition: Good to Very Good; visible surface scratches and creasing are present, while corners and interior condition are incompletely documented.",
        "No Coach model fits: zip-top + exterior buckle envelope pocket + back slip pocket + card slots inside is Patricia Nash-style modern crossbody, not City Bag (9790), Willis (9927), Court (9870), Chelsea Crossbody (8810) or other catalog style",
        "No creed, serial, wordmark, turnlock or hangtag to decode for era; construction and title point to modern (2000s+) non-Coach",
        "Condition: Very Good to Excellent; leather uniform with light creasing (photo 2), corners and bottom clean (photo 3), interior clean (photos 4-6), strap fold and hardware function not fully shown 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": "photo 1: Front buckle and snap hardware with apparent mixed gold\/silver tones; photo 5: visible zipper teeth; no Coach engraving legible.",
        "leather_description": "photo 1: Smooth, glossy medium-to-dark brown leather or leather-like material with some surface scratches and creasing.",
        "lining_description": "photo 5: Brown fabric or suede-like lining is visible; no branding is legible.",
        "strap_construction": "photos 1-2: Adjustable narrow crossbody strap attached at side rings; detailed buckle holes and attachment construction are only partly visible.",
        "stitching_description": "photos 1-3: Machine stitching is generally even around the flap, body, and edges, with some minor irregularity visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0008,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.08,
                "vintage_probability": 0.12,
                "authenticity_confidence": 0.07,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a leather crossbody handbag with a front flap, buckle detail, adjustable strap, and zippered top.",
                    "photo 2: Brown leather appearance and generally neat exterior stitching are compatible with many contemporary leather handbags."
                ],
                "negative_evidence": [
                    "photo 1: Front closure is a buckle-and-snap design, not a recognizable vintage Coach turnlock.",
                    "photo 1: No Coach wordmark, horse-and-carriage, or leather Coach hangtag is visible.",
                    "photo 2: Back construction and decorative flower-like mark do not provide a visible Coach identifier.",
                    "photo 5: Interior is fabric-lined and has no visible Coach creed patch or wordmark.",
                    "photo 6: Interior pocket area is visible but contains no legible Coach label or serial marking.",
                    "photo 7: Hardware appears mixed gold- and silver-tone, which is atypical for a classic vintage Coach bag."
                ],
                "missing_information": [
                    "A straight-on close-up of every interior label, patch, or fabric tag.",
                    "Close-ups of the exterior decorative mark, zipper pull, buckle, and strap hardware.",
                    "A full side and strap-detail view, including the adjustment holes and attachment points.",
                    "Seller-stated dimensions and material information."
                ],
                "authenticity_concerns": [
                    "The bag has no visible Coach identifier and its contemporary zippered, lined construction does not closely match the classic vintage Coach styles in the reference catalog.",
                    "The title identifies Patricia Nash, but the visible photos do not show a Patricia Nash label or other brand proof; the brand remains unverified."
                ],
                "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: Front buckle and snap hardware with apparent mixed gold\/silver tones; photo 5: visible zipper teeth; no Coach engraving legible.",
                    "leather_description": "photo 1: Smooth, glossy medium-to-dark brown leather or leather-like material with some surface scratches and creasing.",
                    "lining_description": "photo 5: Brown fabric or suede-like lining is visible; no branding is legible.",
                    "strap_construction": "photos 1-2: Adjustable narrow crossbody strap attached at side rings; detailed buckle holes and attachment construction are only partly visible.",
                    "stitching_description": "photos 1-3: Machine stitching is generally even around the flap, body, and edges, with some minor irregularity visible."
                },
                "possible_model_reasoning": [
                    "The silhouette is a small contemporary crossbody with a zippered top and buckle-detail flap, but it does not match a clearly identifiable Coach catalog model from the visible evidence.",
                    "The absence of a visible creed, serial\/style number, Coach wordmark, or Coach-specific hardware leaves Coach manufacture unlikely.",
                    "Condition: Good to Very Good; visible surface scratches and creasing are present, while corners and interior condition are incompletely documented."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 40,
                "estimated_resale_low": 20,
                "image_quality_score": 0.72,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of embossed mark on back panel close-up in raking light to confirm maker (photo 2)",
                    "photo of any interior brand tag \/ fabric tag in pocket seams",
                    "photo of zipper-pull brand stamp and buckle back",
                    "seller-stated dimensions and strap length for scale"
                ],
                "negative_evidence": [
                    "photo 1: no turnlock - envelope flap with decorative buckle strap and top zip, not Coach turnlock geometry",
                    "photo 1,2,3,4,5,6: no COACH wordmark, horse-and-carriage, or creed patch visible",
                    "photo 2: small embossed non-Coach motif on lower right back panel, consistent with Patricia Nash branding, not Coach",
                    "photo 4,5,6: interior layout with magnetic-snap front pocket, zip compartment and card slots does not match vintage Coach classic layout of zip + slip under turnlock flap",
                    "photo 1: silhouette - small zip-top crossbody with exterior envelope buckle pocket does not match any catalog Coach classic style"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone buckle on front strap, round D-rings for strap, top zipper with dark tape; tone consistent but buckle and snap are not Coach turnlock and no COACH stamping visible",
                    "leather_description": "smooth medium-brown leather with slight sheen and soft creasing, looks like modern finished leather, not matte glove-tanned with natural scars\/veins",
                    "lining_description": "tan suede-like \/ nubuck interior in photos 4-6, no fabric lining, no creed patch on back wall or in pocket visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even straight stitching in tan contrast thread around flap, pocket and bottom, no mismatched thread visible",
                    "strap_construction": "narrow flat brown leather crossbody strap attached with D-rings, adjustable section partially visible in photo 1",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: leather small crossbody with brass-tone hardware in brown - broad population where vintage Coach hides",
                    "photo 5,6: unlined suede-like interior, which is consistent with leather bags generally but not specific to Coach"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: zip-top + exterior buckle envelope pocket + back slip pocket + card slots inside is Patricia Nash-style modern crossbody, not City Bag (9790), Willis (9927), Court (9870), Chelsea Crossbody (8810) or other catalog style",
                    "No creed, serial, wordmark, turnlock or hangtag to decode for era; construction and title point to modern (2000s+) non-Coach",
                    "Condition: Very Good to Excellent; leather uniform with light creasing (photo 2), corners and bottom clean (photo 3), interior clean (photos 4-6), strap fold and hardware function not fully shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.15,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 33101,
            "output_tokens": 889,
            "total_tokens": 33990,
            "estimated_cost_usd": 0.015374
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 35572,
            "output_tokens": 1823,
            "total_tokens": 37395,
            "estimated_cost_usd": 0.008573
        }
    ]
}