Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.03,
    "vintage_probability": 0.04,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.69,
    "seller_misidentification_probability": 0.03,
    "confidence": 0.78,
    "recommended_max_bid": 8,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a handbag with a shoulder strap and structured baguette-style silhouette.",
        "photo 2: Gold-tone hardware is visible, but it does not show a legible COACH wordmark or horse-and-carriage."
    ],
    "negative_evidence": [
        "photo 1: Smooth, highly uniform material and painted-looking finished edges are more consistent with synthetic or coated fashion-bag construction than vintage glove-tanned Coach leather.",
        "photo 1: The prominent decorative double-chain clasp is not a Coach classic turnlock and does not resemble standard vintage Coach hardware geometry.",
        "photo 3: The reverse has a generic tab-and-snap closure with no visible Coach branding.",
        "photo 1: No Coach hangtag, creed patch, horse-and-carriage, or recognizable Coach identifier is visible.",
        "Listing title: Seller describes the bag as unbranded, which is consistent with the lack of visible brand identifiers but is not proof of origin.",
        "photo 1: front flap uses decorative rectangular buckle, not Coach turnlock geometry",
        "photo 2: closure is round magnetic snap, not turnlock",
        "photo 1, photo 3: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 1, photo 3: smooth uniform coated leather with sheen unlike vintage glove-tanned cowhide",
        "photo 1, photo 3: thin buckle-adjustable baguette strap unlike classic Coach dogleash or dowel constructions"
    ],
    "missing_information": [
        "Interior emptied and photographed, including the back wall, pockets, and any sewn-in label or creed.",
        "Close-up of all hardware, including the clasp, snap, strap attachments, and any stamps.",
        "Bottom, side, corner, and full strap photographs.",
        "Material composition and country-of-origin label, if present.",
        "photo of emptied interior and lining to check for creed patch or fabric tags",
        "straight-on creed patch photo in raking light (not shown)",
        "hardware stamp close-ups and Made-in line",
        "bottom, side and strap-detail views"
    ],
    "authenticity_concerns": [
        "The construction and decorative hardware are inconsistent with the classic vintage Coach population.",
        "The apparent smooth synthetic or coated material and generic closure provide no visible evidence of Coach manufacture."
    ],
    "possible_model_reasoning": [
        "The baguette\/shoulder silhouette is generic and does not closely match a listed vintage Coach classic model.",
        "The visible closure is a decorative chain-and-snap arrangement rather than a Coach turnlock, making Willis, Court, Station, Dinky, and similar candidates poor matches.",
        "Condition appears Very Good to Excellent from the visible exterior, with minor surface marks or handling impressions visible in photo 1; interior, corners, odor, and lining condition are unknown.",
        "No Coach hard identifier visible in any photo, so no Coach model fits; silhouette is Y2K baguette with magnetic flap, not a catalog classic like City Bag, Willis, Court or Dinky",
        "Condition: Like New \/ Excellent; clean exterior, no corner wear visible in photo 1 and photo 3, but interior and 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": "Gold-tone decorative double-chain clasp and round snap; no legible branding visible. Hardware appears plated and fashion-oriented rather than vintage solid-brass Coach hardware.",
        "leather_description": "Appears smooth and highly uniform, possibly faux leather or coated synthetic material; leather type cannot be confirmed from photos.",
        "lining_description": "not_visible",
        "strap_construction": "Long narrow shoulder strap, apparently matching the bag material, with visible top attachment points; full construction and adjustability are not shown.",
        "stitching_description": "Visible topstitching is generally even and contrasting light gray\/white; no obvious Coach-specific construction cue."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0021,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.04,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a handbag with a shoulder strap and structured baguette-style silhouette.",
                    "photo 2: Gold-tone hardware is visible, but it does not show a legible COACH wordmark or horse-and-carriage."
                ],
                "negative_evidence": [
                    "photo 1: Smooth, highly uniform material and painted-looking finished edges are more consistent with synthetic or coated fashion-bag construction than vintage glove-tanned Coach leather.",
                    "photo 1: The prominent decorative double-chain clasp is not a Coach classic turnlock and does not resemble standard vintage Coach hardware geometry.",
                    "photo 3: The reverse has a generic tab-and-snap closure with no visible Coach branding.",
                    "photo 1: No Coach hangtag, creed patch, horse-and-carriage, or recognizable Coach identifier is visible.",
                    "Listing title: Seller describes the bag as unbranded, which is consistent with the lack of visible brand identifiers but is not proof of origin."
                ],
                "missing_information": [
                    "Interior emptied and photographed, including the back wall, pockets, and any sewn-in label or creed.",
                    "Close-up of all hardware, including the clasp, snap, strap attachments, and any stamps.",
                    "Bottom, side, corner, and full strap photographs.",
                    "Material composition and country-of-origin label, if present."
                ],
                "authenticity_concerns": [
                    "The construction and decorative hardware are inconsistent with the classic vintage Coach population.",
                    "The apparent smooth synthetic or coated material and generic closure provide no visible evidence of Coach manufacture."
                ],
                "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 decorative double-chain clasp and round snap; no legible branding visible. Hardware appears plated and fashion-oriented rather than vintage solid-brass Coach hardware.",
                    "leather_description": "Appears smooth and highly uniform, possibly faux leather or coated synthetic material; leather type cannot be confirmed from photos.",
                    "lining_description": "not_visible",
                    "strap_construction": "Long narrow shoulder strap, apparently matching the bag material, with visible top attachment points; full construction and adjustability are not shown.",
                    "stitching_description": "Visible topstitching is generally even and contrasting light gray\/white; no obvious Coach-specific construction cue."
                },
                "possible_model_reasoning": [
                    "The baguette\/shoulder silhouette is generic and does not closely match a listed vintage Coach classic model.",
                    "The visible closure is a decorative chain-and-snap arrangement rather than a Coach turnlock, making Willis, Court, Station, Dinky, and similar candidates poor matches.",
                    "Condition appears Very Good to Excellent from the visible exterior, with minor surface marks or handling impressions visible in photo 1; interior, corners, odor, and lining condition are unknown."
                ],
                "confidence": 0.86,
                "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": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.7,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 8,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of emptied interior and lining to check for creed patch or fabric tags",
                    "straight-on creed patch photo in raking light (not shown)",
                    "hardware stamp close-ups and Made-in line",
                    "bottom, side and strap-detail views"
                ],
                "negative_evidence": [
                    "photo 1: front flap uses decorative rectangular buckle, not Coach turnlock geometry",
                    "photo 2: closure is round magnetic snap, not turnlock",
                    "photo 1, photo 3: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 1, photo 3: smooth uniform coated leather with sheen unlike vintage glove-tanned cowhide",
                    "photo 1, photo 3: thin buckle-adjustable baguette strap unlike classic Coach dogleash or dowel constructions"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone decorative ribbed buckle on front tab, round magnetic snap (photo 2), thin strap buckle; bright plated tone, not solid vintage brass",
                    "leather_description": "smooth green coated leather with uniform sheen, no grain, scars or patina visible; looks like modern coated \/ synthetic leather, not glove-tanned",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light contrast machine stitching around top edge and flap tab, even but not Coach-matched thread",
                    "strap_construction": "thin fixed shoulder strap with buckle length adjustment (photo 1, photo 3)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach hard identifier visible in any photo, so no Coach model fits; silhouette is Y2K baguette with magnetic flap, not a catalog classic like City Bag, Willis, Court or Dinky",
                    "Condition: Like New \/ Excellent; clean exterior, no corner wear visible in photo 1 and photo 3, but interior and bottom not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.04
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 21933,
            "output_tokens": 804,
            "total_tokens": 22737,
            "estimated_cost_usd": 0.010703
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 22730,
            "output_tokens": 1250,
            "total_tokens": 23980,
            "estimated_cost_usd": 0.005546
        }
    ]
}