Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.05,
    "vintage_probability": 0.76,
    "authenticity_confidence": 0.045,
    "image_quality_score": 0.735,
    "seller_misidentification_probability": 0.075,
    "confidence": 0.78,
    "recommended_max_bid": 8,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather flap handbag with a vintage-style compact silhouette and stitched leather strap.",
        "photo 2: visible leather construction and small metal strap attachment hardware.",
        "photo 1: small black leather handbag form, the population where misidentified Coach could hide"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, carriage, hangtag, or recognizable Coach turnlock.",
        "photo 1: flap closure appears to use a spring\/shaped closure rather than a Coach-style turnlock.",
        "photo 4: interior is fabric-lined; this does not match the typical unlined construction of many classic glove-tanned Coach bags.",
        "photo 5: interior shows a generic fabric lining and no visible creed patch or serial tag.",
        "photo 6: construction appears worn and repaired\/deteriorated, with exposed backing and frayed lining rather than identifiable Coach construction.",
        "photo 3: strap and body construction are generic and do not provide a Coach model match.",
        "photo 1-4: no Coach turnlock, no hangtag, no wordmark or horse-and-carriage visible",
        "photo 4-6: fabric-lined boxy interior with no leather creed patch visible, unlike unlined glove-tanned vintage Coach classics",
        "photo 1-3: small rigid box \/ flap-side silhouette with twin rolled top handles and spring sides, no match in Coach catalog styles",
        "photo 2-3: thin worn handles and small rivet anchors, not solid-brass dogleash \/ turnlock \/ buckle hardware of vintage Coach"
    ],
    "missing_information": [
        "photo 5-6: no clear straight-on photograph of every interior wall or seam where a creed or fabric tag might be located.",
        "photo 1-4: closure hardware close-up is insufficient to identify the mechanism or maker.",
        "photo 1-4: zipper, buckle, and any hardware stamps are not shown.",
        "photo 1-4: bottom and all corners are not fully documented.",
        "seller-stated 1940s date is not supported by a visible label or provenance.",
        "photo of any interior leather patch \/ brand stamp or fabric label, not shown",
        "photo of hardware stamps \/ zipper brand, not shown",
        "bottom and close-up corner \/ edge condition views"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible in the supplied photos, so the bag is more consistent with an unbranded vintage leather purse than a Coach piece.",
        "The seller's 1940s attribution cannot be verified from the construction or photos; it should not be used as evidence of Coach origin.",
        "The fabric-lined, glossy black construction and spring-style flap closure do not closely match the classic Coach glove-tanned, brass-turnlock patterns in the reference catalog."
    ],
    "possible_model_reasoning": [
        "No catalog Coach model is a close enough match from the visible silhouette and closure to list a candidate.",
        "The compact flap-sided shape could be a generic mid-century or later vintage purse, but silhouette alone is not brand evidence.",
        "Condition: Fair\/rehab; substantial strap and edge wear, interior lining separation and exposed backing are visible in photos 2, 5, and 6; odor, mold, and functional closure condition are unknown.",
        "No Coach model fits: boxy spring-flap side purse with twin handles matches 1940s-1950s generic box bag, not City Bag, Willis, Court, Station, Dinky or Cashin-era shapes",
        "Era reasoning: construction, fabric lining and silhouette are pre-Coach-creed in age but show no Cashin cues, no cartouche, no creed, no glove-tanned suede back",
        "Condition: Fair \/ Rehab \/ Parts; heavy handle wear and cracking (photo 2), edge wear (photo 1,3), interior seam separation (photo 6)"
    ],
    "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 1-4: small metal strap attachment fittings are visible; no identifiable Coach-marked or classic Coach turnlock hardware is visible.",
        "leather_description": "photo 1-4: black leather or leather-like exterior with a glossy finish, substantial wear, scuffing, edge wear, and surface deterioration.",
        "lining_description": "photo 5-6: dark fabric lining is visible; the lining is worn, frayed, and separating in places.",
        "strap_construction": "photo 1-3: narrow rounded leather shoulder strap, visibly worn and creased, attached at the sides with small metal fittings.",
        "stitching_description": "photo 1-6: visible perimeter stitching is generally present but worn; several interior seams and edges show fraying, separation, or exposed backing."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0023,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.08,
                "vintage_probability": 0.72,
                "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: leather flap handbag with a vintage-style compact silhouette and stitched leather strap.",
                    "photo 2: visible leather construction and small metal strap attachment hardware."
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, carriage, hangtag, or recognizable Coach turnlock.",
                    "photo 1: flap closure appears to use a spring\/shaped closure rather than a Coach-style turnlock.",
                    "photo 4: interior is fabric-lined; this does not match the typical unlined construction of many classic glove-tanned Coach bags.",
                    "photo 5: interior shows a generic fabric lining and no visible creed patch or serial tag.",
                    "photo 6: construction appears worn and repaired\/deteriorated, with exposed backing and frayed lining rather than identifiable Coach construction.",
                    "photo 3: strap and body construction are generic and do not provide a Coach model match."
                ],
                "missing_information": [
                    "photo 5-6: no clear straight-on photograph of every interior wall or seam where a creed or fabric tag might be located.",
                    "photo 1-4: closure hardware close-up is insufficient to identify the mechanism or maker.",
                    "photo 1-4: zipper, buckle, and any hardware stamps are not shown.",
                    "photo 1-4: bottom and all corners are not fully documented.",
                    "seller-stated 1940s date is not supported by a visible label or provenance."
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible in the supplied photos, so the bag is more consistent with an unbranded vintage leather purse than a Coach piece.",
                    "The seller's 1940s attribution cannot be verified from the construction or photos; it should not be used as evidence of Coach origin.",
                    "The fabric-lined, glossy black construction and spring-style flap closure do not closely match the classic Coach glove-tanned, brass-turnlock patterns in the reference catalog."
                ],
                "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 1-4: small metal strap attachment fittings are visible; no identifiable Coach-marked or classic Coach turnlock hardware is visible.",
                    "leather_description": "photo 1-4: black leather or leather-like exterior with a glossy finish, substantial wear, scuffing, edge wear, and surface deterioration.",
                    "lining_description": "photo 5-6: dark fabric lining is visible; the lining is worn, frayed, and separating in places.",
                    "strap_construction": "photo 1-3: narrow rounded leather shoulder strap, visibly worn and creased, attached at the sides with small metal fittings.",
                    "stitching_description": "photo 1-6: visible perimeter stitching is generally present but worn; several interior seams and edges show fraying, separation, or exposed backing."
                },
                "possible_model_reasoning": [
                    "No catalog Coach model is a close enough match from the visible silhouette and closure to list a candidate.",
                    "The compact flap-sided shape could be a generic mid-century or later vintage purse, but silhouette alone is not brand evidence.",
                    "Condition: Fair\/rehab; substantial strap and edge wear, interior lining separation and exposed backing are visible in photos 2, 5, and 6; odor, mold, and functional closure condition are unknown."
                ],
                "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": 0.72,
                "estimated_era": "unknown",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of any interior leather patch \/ brand stamp or fabric label, not shown",
                    "photo of hardware stamps \/ zipper brand, not shown",
                    "bottom and close-up corner \/ edge condition views"
                ],
                "negative_evidence": [
                    "photo 1-4: no Coach turnlock, no hangtag, no wordmark or horse-and-carriage visible",
                    "photo 4-6: fabric-lined boxy interior with no leather creed patch visible, unlike unlined glove-tanned vintage Coach classics",
                    "photo 1-3: small rigid box \/ flap-side silhouette with twin rolled top handles and spring sides, no match in Coach catalog styles",
                    "photo 2-3: thin worn handles and small rivet anchors, not solid-brass dogleash \/ turnlock \/ buckle hardware of vintage Coach"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "small brass-tone rivets at handle anchors (photo 3); no turnlock, no dogleash clips, no zipper pull visible",
                    "leather_description": "black smooth \/ coated leather, heavily worn with scuffing, cracking and finish loss on handles and edges (photo 1-3)",
                    "lining_description": "dark woven fabric lining in body and under flap (photo 4-5)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light contrast topstitching on flap perimeter (photo 1); interior seams fraying \/ separating (photo 6)",
                    "strap_construction": "twin short rolled top handles, fixed with rivets, ~6 inch drop per seller; no detachable crossbody strap",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: small black leather handbag form, the population where misidentified Coach could hide"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: boxy spring-flap side purse with twin handles matches 1940s-1950s generic box bag, not City Bag, Willis, Court, Station, Dinky or Cashin-era shapes",
                    "Era reasoning: construction, fabric lining and silhouette are pre-Coach-creed in age but show no Cashin cues, no cartouche, no creed, no glove-tanned suede back",
                    "Condition: Fair \/ Rehab \/ Parts; heavy handle wear and cracking (photo 2), edge wear (photo 1,3), interior seam separation (photo 6)"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.8
            }
        }
    ],
    "_usage": [
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            "output_tokens": 869,
            "total_tokens": 18991,
            "estimated_cost_usd": 0.009334
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18672,
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}