Vintage Coach Hunter

{
    "is_handbag_probability": 0.945,
    "coach_probability": 0.025,
    "vintage_probability": 0.045,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.79,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.855,
    "recommended_max_bid": 15,
    "estimated_resale_low": 20,
    "estimated_resale_high": 52.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a leather satchel\/shoulder bag with a handle, flap, exterior pockets, and detachable shoulder strap",
        "photo 1: the bag has substantial leather panels and generally even double-row stitching"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, serial number, or Coach hangtag",
        "photo 1: multiple front buckle straps, decorative rivets, and the overall schoolbag\/messenger design do not closely match the listed classic Coach silhouettes",
        "photo 2: rear zip pocket uses a black synthetic-looking zipper and the hardware appears dark plated rather than the solid brass hardware typical of many vintage Coach classics",
        "photo 5: interior is bright green fabric-lined with multiple compartments; this is inconsistent with the unlined suede-back construction of many classic vintage Coach bags",
        "photo 1: construction and styling are consistent with a generic contemporary leather satchel rather than an identifiable Coach model",
        "photo 1: front flap uses three buckle straps with exposed dome rivets, no turnlock and no Coach silhouette match",
        "photo 2: back exterior zip is black coil zipper with black fabric tape, not vintage solid-brass Talon\/YKK Coach zipper",
        "photo 4: interior fully lined in bright green woven canvas, not unlined glove-tanned suede of Coach classics",
        "photo 1-3: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 1-3: hardware is dark antiqued buckles and rivets with mixed silver tone, not solid brass Coach hardware"
    ],
    "missing_information": [
        "photo 5: no close-up of every interior wall, pocket seam, or fabric label showing a possible brand mark",
        "photo 1: no close-ups of zipper-pull stamps or hardware markings",
        "photo 3: bottom, corners, and strap attachment details are not shown closely enough to assess construction fully",
        "seller-stated dimensions are available, but no country-of-origin or maker information is provided",
        "photo of interior leather patch \/ creed area straight-on to confirm no Coach creed",
        "photo of any maker stamp, fabric tag or Made-in label inside pockets",
        "photo of bottom and corners for condition grading"
    ],
    "authenticity_concerns": [
        "photo 1: no Coach identifier is visible, so the bag cannot be supported as Coach-made and appears to be a generic lookalike rather than a replica with a transplanted Coach identifier",
        "photo 5: bright textile lining and modern compartment construction are inconsistent with the likely era and construction of a classic vintage Coach leather bag",
        "photo 1-4: silhouette, buckle-strap closure, riveted handle mounts and green canvas lining are inconsistent with any vintage Coach catalog style and era"
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because the bag has no visible Coach identifier and its multi-buckle schoolbag\/satchel design does not closely match a cataloged vintage Coach classic.",
        "photo 5: fabric-lined, compartmentalized construction and modern zipper arrangement suggest a contemporary generic leather satchel rather than a pre-2000 unlined glove-tanned Coach classic.",
        "Condition: Good to Very Good based on visible creasing, surface rubbing, and tonal wear on the leather; no bottom or detailed corner inspection is available, and odor or hidden interior damage cannot be assessed.",
        "No Coach model matches: buckle-satchel \/ school-bag with front exterior pocket and riveted handle is not a Coach City Bag, Court, Station, Willis, Dinky, Stewardess or briefcase variant",
        "Construction and lining point to modern vintage-style unbranded satchel, likely India\/China-made, not pre-2000 Coach",
        "Condition: Very Good; leather shows light wear\/patina but no corner blowouts visible (photo 1-3), interior lining clean (photo 4), bottom not 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: dark bronze\/silver-tone buckles, rings, rivets, and snap-like decorative hardware; no Coach engraving is visible",
        "leather_description": "photo 1: reddish-brown smooth-to-lightly textured leather with visible creasing, scuffs, and tonal variation; exact leather type is not determinable",
        "lining_description": "photo 5: bright green fabric lining with multiple compartments and black zipper tracks",
        "strap_construction": "photos 1-3: detachable adjustable leather shoulder strap with buckle adjustment and metal attachment hardware; top handle attached with short leather tabs and rings",
        "stitching_description": "photos 1 and 3: visible double-row perimeter stitching is generally even, with exposed stitched leather tabs and riveted\/buckled attachments"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0015,
    "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": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a leather satchel\/shoulder bag with a handle, flap, exterior pockets, and detachable shoulder strap",
                    "photo 1: the bag has substantial leather panels and generally even double-row stitching"
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, serial number, or Coach hangtag",
                    "photo 1: multiple front buckle straps, decorative rivets, and the overall schoolbag\/messenger design do not closely match the listed classic Coach silhouettes",
                    "photo 2: rear zip pocket uses a black synthetic-looking zipper and the hardware appears dark plated rather than the solid brass hardware typical of many vintage Coach classics",
                    "photo 5: interior is bright green fabric-lined with multiple compartments; this is inconsistent with the unlined suede-back construction of many classic vintage Coach bags",
                    "photo 1: construction and styling are consistent with a generic contemporary leather satchel rather than an identifiable Coach model"
                ],
                "missing_information": [
                    "photo 5: no close-up of every interior wall, pocket seam, or fabric label showing a possible brand mark",
                    "photo 1: no close-ups of zipper-pull stamps or hardware markings",
                    "photo 3: bottom, corners, and strap attachment details are not shown closely enough to assess construction fully",
                    "seller-stated dimensions are available, but no country-of-origin or maker information is provided"
                ],
                "authenticity_concerns": [
                    "photo 1: no Coach identifier is visible, so the bag cannot be supported as Coach-made and appears to be a generic lookalike rather than a replica with a transplanted Coach identifier",
                    "photo 5: bright textile lining and modern compartment construction are inconsistent with the likely era and construction of a classic vintage Coach leather bag"
                ],
                "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: dark bronze\/silver-tone buckles, rings, rivets, and snap-like decorative hardware; no Coach engraving is visible",
                    "leather_description": "photo 1: reddish-brown smooth-to-lightly textured leather with visible creasing, scuffs, and tonal variation; exact leather type is not determinable",
                    "lining_description": "photo 5: bright green fabric lining with multiple compartments and black zipper tracks",
                    "strap_construction": "photos 1-3: detachable adjustable leather shoulder strap with buckle adjustment and metal attachment hardware; top handle attached with short leather tabs and rings",
                    "stitching_description": "photos 1 and 3: visible double-row perimeter stitching is generally even, with exposed stitched leather tabs and riveted\/buckled attachments"
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because the bag has no visible Coach identifier and its multi-buckle schoolbag\/satchel design does not closely match a cataloged vintage Coach classic.",
                    "photo 5: fabric-lined, compartmentalized construction and modern zipper arrangement suggest a contemporary generic leather satchel rather than a pre-2000 unlined glove-tanned Coach classic.",
                    "Condition: Good to Very Good based on visible creasing, surface rubbing, and tonal wear on the leather; no bottom or detailed corner inspection is available, and odor or hidden interior damage cannot be assessed."
                ],
                "confidence": 0.86,
                "recommended_max_bid": 15,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-4: silhouette, buckle-strap closure, riveted handle mounts and green canvas lining are inconsistent with any vintage Coach catalog style and era"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 45,
                "estimated_resale_low": 20,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.9,
                "missing_information": [
                    "photo of interior leather patch \/ creed area straight-on to confirm no Coach creed",
                    "photo of any maker stamp, fabric tag or Made-in label inside pockets",
                    "photo of bottom and corners for condition grading"
                ],
                "negative_evidence": [
                    "photo 1: front flap uses three buckle straps with exposed dome rivets, no turnlock and no Coach silhouette match",
                    "photo 2: back exterior zip is black coil zipper with black fabric tape, not vintage solid-brass Talon\/YKK Coach zipper",
                    "photo 4: interior fully lined in bright green woven canvas, not unlined glove-tanned suede of Coach classics",
                    "photo 1-3: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 1-3: hardware is dark antiqued buckles and rivets with mixed silver tone, not solid brass Coach hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "dark antiqued buckle straps, dome rivets, D-rings and top-handle rings; back black coil zipper with small metal pull",
                    "leather_description": "medium reddish-brown distressed \/ oiled smooth leather with mottled patina, not glove-tanned Coach finish",
                    "lining_description": "bright green woven canvas \/ fabric lining on flap underside and interior compartments",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "contrasting dark edge stitching around flap and body, even but not Coach-matched thread",
                    "strap_construction": "short riveted top grab handle plus long detachable\/adjustable shoulder strap with buckle adjustment",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model matches: buckle-satchel \/ school-bag with front exterior pocket and riveted handle is not a Coach City Bag, Court, Station, Willis, Dinky, Stewardess or briefcase variant",
                    "Construction and lining point to modern vintage-style unbranded satchel, likely India\/China-made, not pre-2000 Coach",
                    "Condition: Very Good; leather shows light wear\/patina but no corner blowouts visible (photo 1-3), interior lining clean (photo 4), bottom not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 26384,
            "output_tokens": 887,
            "total_tokens": 27271,
            "estimated_cost_usd": 0.012682
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 27933,
            "output_tokens": 1599,
            "total_tokens": 29532,
            "estimated_cost_usd": 0.006866
        }
    ]
}