Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.035,
    "vintage_probability": 0.08,
    "authenticity_confidence": 0.035,
    "image_quality_score": 0.565,
    "seller_misidentification_probability": 0.08,
    "confidence": 0.69,
    "recommended_max_bid": 15,
    "estimated_resale_low": 15,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: The listing clearly shows multiple shoulder handbags with adjustable straps, zippered compartments, and drawstring\/fringe details.",
        "photo 1: The bags appear leather or leather-like rather than nylon, though the material cannot be confirmed from photos.",
        "photo 1,4: black flap shoulder bag is leather flap type in the broad population where misidentified Coach hides, but shows no Coach identifier"
    ],
    "negative_evidence": [
        "photo 1: No visible COACH wordmark, horse-and-carriage, creed patch, serial\/style number, or Coach hangtag.",
        "photos 1-6: Hardware is predominantly bright silver-tone, unlike the solid brass commonly seen on classic vintage Coach styles.",
        "photos 1-6: The fringe, grommeted drawstring construction, decorative braided straps, and large soft brown tote silhouette do not closely match the listed classic Coach silhouettes.",
        "photos 1-6: The bags have generic contemporary styling and no visible Coach-specific identifier.",
        "photo 1: The lot presentation shows three different bags together, with no close-up evidence supporting a shared brand.",
        "photo 1-5: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible on any of the 3 bags",
        "photo 1-3: beige bag has drawstring grommet top with fringe tassels and vertical exterior zip pockets - silhouette and details match no vintage Coach catalog style",
        "photo 2-5: brown bag has slouchy hobo body with brass-tone rivets and braided trim and whip-stitched handles - not a Coach classic construction",
        "photo 1-4: all visible hardware is silver-tone grommets, zippers, rings - inconsistent with 1970s-early 1990s solid-brass vintage Coach classics",
        "photo 1-4: black bag shows no turnlock, no brass dogleash clips, no bead-chain hangtag"
    ],
    "missing_information": [
        "Interior views of each bag, especially the back wall, slip pockets, and any sewn leather or fabric labels.",
        "Straight-on close-ups of all interior labels, stamps, zipper pulls, and hardware.",
        "Photos of the bottoms, corners, strap attachment points, and full third bag.",
        "Seller-stated material composition, dimensions, and any markings not visible in the listing photos.",
        "photo of interior \/ creed patch for each of the 3 bags - no interior shown",
        "close-up of hangtag \/ wordmark \/ hardware stamps - none visible",
        "bottom \/ corners \/ strap ends for condition grading",
        "maker labels or fabric tags inside each bag"
    ],
    "authenticity_concerns": [
        "photos 1-6: No Coach identifiers are visible, so the bags currently read as generic contemporary leather or leather-like handbags rather than identifiable Coach products.",
        "photos 1-6: Bright silver-tone hardware and decorative fringe\/grommet details are inconsistent with the expected construction of many classic vintage Coach candidates.",
        "photos 1-6: The soft brown bag's styling may be a lookalike or unrelated contemporary brand; no evidence supports a Coach attribution."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match at the current evidence level. The beige bag is a modern drawstring\/fringe shoulder bag, while the brown bag is a soft decorative tote; neither presents a recognizable Coach classic silhouette or identifier.",
        "Condition appears Good overall: visible creasing and handling wear are present on the black, beige, and brown bags (photos 1-6), while interiors, odors, and bottom wear are unknown.",
        "The absence of visible identifiers prevents meaningful Coach-era dating; construction and hardware suggest modern, non-Coach bags rather than pre-2000 Coach.",
        "Lot of 3 bags assessed together: none shows creed, wordmark, turnlock with Coach geometry, or hangtag",
        "Beige drawstring grommet fringe bag and brown rivet slouch hobo do not match any Classic glove-tanned era styles (City 9790, Willis 9927, Court 9870, Station 5130, Duffle 9085, etc.) in closure, strap or pocket layout",
        "Black flap bag is too obscured and shows no closure hardware to match to a catalog style; cannot name a Coach candidate without identifiers",
        "Condition: Good to Very Good appearance exterior only; interiors, bottoms, strap folds not shown so grade capped and lining unknown"
    ],
    "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": "Bright silver-tone rings, clasps, zipper hardware, and rivets are visible on the beige bag; brass-tone rivets are visible on the brown bag. No Coach engraving is legible.",
        "leather_description": "The beige and brown bags appear to have smooth or lightly pebbled leather-like surfaces; the black bag appears smooth leather-like. Material cannot be confirmed from photos.",
        "lining_description": "not_visible - interiors never shown",
        "strap_construction": "Shoulder straps are visible; the beige bag has a long strap and attached fringe details, while the brown bag has wide decorative shoulder straps. Full attachment and adjustment construction is not shown.",
        "stitching_description": "Visible stitching is generally machine-stitched and appears mostly even, with multiple decorative seams on the brown bag; stress points and interior stitching are not shown."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0035,
    "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": 0.68,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: The listing clearly shows multiple shoulder handbags with adjustable straps, zippered compartments, and drawstring\/fringe details.",
                    "photo 1: The bags appear leather or leather-like rather than nylon, though the material cannot be confirmed from photos."
                ],
                "negative_evidence": [
                    "photo 1: No visible COACH wordmark, horse-and-carriage, creed patch, serial\/style number, or Coach hangtag.",
                    "photos 1-6: Hardware is predominantly bright silver-tone, unlike the solid brass commonly seen on classic vintage Coach styles.",
                    "photos 1-6: The fringe, grommeted drawstring construction, decorative braided straps, and large soft brown tote silhouette do not closely match the listed classic Coach silhouettes.",
                    "photos 1-6: The bags have generic contemporary styling and no visible Coach-specific identifier.",
                    "photo 1: The lot presentation shows three different bags together, with no close-up evidence supporting a shared brand."
                ],
                "missing_information": [
                    "Interior views of each bag, especially the back wall, slip pockets, and any sewn leather or fabric labels.",
                    "Straight-on close-ups of all interior labels, stamps, zipper pulls, and hardware.",
                    "Photos of the bottoms, corners, strap attachment points, and full third bag.",
                    "Seller-stated material composition, dimensions, and any markings not visible in the listing photos."
                ],
                "authenticity_concerns": [
                    "photos 1-6: No Coach identifiers are visible, so the bags currently read as generic contemporary leather or leather-like handbags rather than identifiable Coach products.",
                    "photos 1-6: Bright silver-tone hardware and decorative fringe\/grommet details are inconsistent with the expected construction of many classic vintage Coach candidates.",
                    "photos 1-6: The soft brown bag's styling may be a lookalike or unrelated contemporary brand; no evidence supports a Coach attribution."
                ],
                "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": "Bright silver-tone rings, clasps, zipper hardware, and rivets are visible on the beige bag; brass-tone rivets are visible on the brown bag. No Coach engraving is legible.",
                    "leather_description": "The beige and brown bags appear to have smooth or lightly pebbled leather-like surfaces; the black bag appears smooth leather-like. Material cannot be confirmed from photos.",
                    "lining_description": "not_visible",
                    "strap_construction": "Shoulder straps are visible; the beige bag has a long strap and attached fringe details, while the brown bag has wide decorative shoulder straps. Full attachment and adjustment construction is not shown.",
                    "stitching_description": "Visible stitching is generally machine-stitched and appears mostly even, with multiple decorative seams on the brown bag; stress points and interior stitching are not shown."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match at the current evidence level. The beige bag is a modern drawstring\/fringe shoulder bag, while the brown bag is a soft decorative tote; neither presents a recognizable Coach classic silhouette or identifier.",
                    "Condition appears Good overall: visible creasing and handling wear are present on the black, beige, and brown bags (photos 1-6), while interiors, odors, and bottom wear are unknown.",
                    "The absence of visible identifiers prevents meaningful Coach-era dating; construction and hardware suggest modern, non-Coach bags rather than pre-2000 Coach."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 50
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.04,
                "coach_probability": 0.04,
                "confidence": 0.6,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 45,
                "estimated_resale_low": 15,
                "image_quality_score": 0.45,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior \/ creed patch for each of the 3 bags - no interior shown",
                    "close-up of hangtag \/ wordmark \/ hardware stamps - none visible",
                    "bottom \/ corners \/ strap ends for condition grading",
                    "maker labels or fabric tags inside each bag"
                ],
                "negative_evidence": [
                    "photo 1-5: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible on any of the 3 bags",
                    "photo 1-3: beige bag has drawstring grommet top with fringe tassels and vertical exterior zip pockets - silhouette and details match no vintage Coach catalog style",
                    "photo 2-5: brown bag has slouchy hobo body with brass-tone rivets and braided trim and whip-stitched handles - not a Coach classic construction",
                    "photo 1-4: all visible hardware is silver-tone grommets, zippers, rings - inconsistent with 1970s-early 1990s solid-brass vintage Coach classics",
                    "photo 1-4: black bag shows no turnlock, no brass dogleash clips, no bead-chain hangtag"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone grommets, zipper teeth and rings on beige bag (photo 1); brass-tone rivets on brown bag (photo 2,5); dark strap hardware on black bag, no turnlock visible",
                    "leather_description": "photo 1-4: three pebbled \/ smooth leather-look shoulder bags in beige, brown, black; texture appears soft slouchy 2000s-type leather, not clearly glove-tanned",
                    "lining_description": "not_visible - interiors never shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "photo 2,5: contrast topstitching on brown bag center seam and base; photo 4: center seam on beige bag; even but not diagnostic, no detailed stitch close-up",
                    "strap_construction": "photo 4: thin flat shoulder straps; black bag with narrow crossbody strap on metal rings; brown bag with wide whip-stitched handles; no buckle-adjust or dogleash detail visible",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1,4: black flap shoulder bag is leather flap type in the broad population where misidentified Coach hides, but shows no Coach identifier"
                ],
                "possible_model_reasoning": [
                    "Lot of 3 bags assessed together: none shows creed, wordmark, turnlock with Coach geometry, or hangtag",
                    "Beige drawstring grommet fringe bag and brown rivet slouch hobo do not match any Classic glove-tanned era styles (City 9790, Willis 9927, Court 9870, Station 5130, Duffle 9085, etc.) in closure, strap or pocket layout",
                    "Black flap bag is too obscured and shows no closure hardware to match to a catalog style; cannot name a Coach candidate without identifiers",
                    "Condition: Good to Very Good appearance exterior only; interiors, bottoms, strap folds not shown so grade capped and lining unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.04,
                "vintage_probability": 0.12
            }
        }
    ],
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            "model_name": "openai:gpt-5.6-luna",
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            "output_tokens": 914,
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            "estimated_cost_usd": 0.012793
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 27642,
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}