Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.08,
    "vintage_probability": 0.4,
    "authenticity_confidence": 0.07,
    "image_quality_score": 0.77,
    "seller_misidentification_probability": 0.08,
    "confidence": 0.75,
    "recommended_max_bid": 11,
    "estimated_resale_low": 11,
    "estimated_resale_high": 32.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: compact leather crossbody handbag with a flap and adjustable strap, a category that overlaps with some vintage Coach designs",
        "photo 2: leather body and tone-consistent dark stitching are visible",
        "photo 1-3: small black leather flap crossbody bag, leather handbag population where misidentified Coach can hide",
        "photo 1-4: brass-tone hardware consistent in tone front buckle and back zip",
        "photo 1: overall size and flap + front pocket silhouette vaguely reminiscent of small 1980s-1990s crossbody bags"
    ],
    "negative_evidence": [
        "photo 1: front closure is a decorative buckle strap rather than a recognizable Coach turnlock or other characteristic Coach closure",
        "photo 2: no legible COACH wordmark, horse-and-carriage, hangtag, or creed patch is visible",
        "photo 4: fabric-lined interior and multiple compartment construction are visible but do not provide a Coach identifier",
        "photo 4: visible zipper hardware and pulls are unbranded",
        "photo 1: the shiny, heavily creased leather and decorative buckle layout are more consistent with a generic leather crossbody than a classic glove-tanned Coach model",
        "photo 1,2,3,6: closure is front buckle accent, not Coach turnlock geometry - no turnlock present",
        "photo 5: interior appears fabric-lined with multiple compartments, not unlined suede-back glove-tanned leather of vintage Coach classics",
        "photo 4: exterior back zip pocket with long leather pull tab; not a standard 1980s-1990s Coach classic layout",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible in any view",
        "photo 1,3,4,6: thin flat crossbody strap with simple knot adjustment, not Coach buckle-adjustable strap with brass slides or dogleash clips"
    ],
    "missing_information": [
        "photo 4: no straight-on view of the entire interior back wall or any sewn-in brand label",
        "photo 4: no close-up of the interior pockets, seams, or any hidden tags",
        "no close-up of zipper pulls, buckle reverse, strap attachments, or hardware markings",
        "seller-stated dimensions and country of manufacture are not provided",
        "photo of interior back wall \/ slip pocket straight-on in raking light to confirm no creed patch (photo 5 is angled and partial)",
        "close-up of any interior fabric \/ leather brand tag glimpsed in photo 5 interior pocket",
        "close-up of buckle, back zipper pull and any hardware stamps",
        "bottom and side views showing corners and construction"
    ],
    "authenticity_concerns": [
        "photo 1: the bag lacks the creed, wordmark, hangtag, and characteristic vintage Coach turnlock expected for a likely Coach classic",
        "photo 4: fabric lining and generic compartment construction do not establish Coach manufacture and are inconsistent with many unlined classic glove-tanned Coach silhouettes"
    ],
    "possible_model_reasoning": [
        "The flap, front buckle accent, and rear zip pocket do not closely match the listed classic Coach turnlock styles; no Coach model is proposed without a brand identifier.",
        "Seller's 1990s claim is unverified by the photos; the fabric lining and construction support only a broad older or modern-vintage appearance, not a specific Coach era.",
        "Condition: Good; visible creasing and surface wear across the front leather (photos 1-2), while no major tears or broken hardware are apparent. Interior condition is only partially shown.",
        "Closest Coach catalog shape is Chelsea Crossbody (8810) - magnetic snap under buckle-detail flap - but this bag shows a functional buckle accent, fabric lining, back zip, and no creed or Coach hardware, so it does not match; no other turnlock classic (Dinky 9375, Pocket Purse 9755, City Bag 9790) fits buckle closure and lined interior",
        "Era reasoning: seller states 90s vintage; construction with fabric lining and thin strap suggests 1990s-2000s generic leather bag, not 1975-1993 unlined brass Coach era; no identifier to date as Coach",
        "Condition: Very Good to Good; leather shows creasing and surface wear but no major tears visible (photo 2-3), corners not shown, interior not fully shown so grade 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: small brass-tone rectangular buckle with a decorative keeper; photo 4: unbranded zipper pull; no Coach engraving visible",
        "leather_description": "photo 1: black smooth-to lightly pebbled leather with prominent creasing and surface sheen; apparent wear but no holes or major tears visible",
        "lining_description": "photo 4: dark fabric lining with several compartments and a visible lighter patterned\/textured item or pocket interior; no brand label visible",
        "strap_construction": "photos 1 and 3: long narrow adjustable leather shoulder strap attached at side tabs; loose strap end is visible",
        "stitching_description": "photos 1-4: generally even dark stitching around the flap, pockets, and perimeter, with some visible wear and slight irregularity at strap attachments"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0022,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.08,
                "vintage_probability": 0.35,
                "authenticity_confidence": 0.06,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: compact leather crossbody handbag with a flap and adjustable strap, a category that overlaps with some vintage Coach designs",
                    "photo 2: leather body and tone-consistent dark stitching are visible"
                ],
                "negative_evidence": [
                    "photo 1: front closure is a decorative buckle strap rather than a recognizable Coach turnlock or other characteristic Coach closure",
                    "photo 2: no legible COACH wordmark, horse-and-carriage, hangtag, or creed patch is visible",
                    "photo 4: fabric-lined interior and multiple compartment construction are visible but do not provide a Coach identifier",
                    "photo 4: visible zipper hardware and pulls are unbranded",
                    "photo 1: the shiny, heavily creased leather and decorative buckle layout are more consistent with a generic leather crossbody than a classic glove-tanned Coach model"
                ],
                "missing_information": [
                    "photo 4: no straight-on view of the entire interior back wall or any sewn-in brand label",
                    "photo 4: no close-up of the interior pockets, seams, or any hidden tags",
                    "no close-up of zipper pulls, buckle reverse, strap attachments, or hardware markings",
                    "seller-stated dimensions and country of manufacture are not provided"
                ],
                "authenticity_concerns": [
                    "photo 1: the bag lacks the creed, wordmark, hangtag, and characteristic vintage Coach turnlock expected for a likely Coach classic",
                    "photo 4: fabric lining and generic compartment construction do not establish Coach manufacture and are inconsistent with many unlined classic glove-tanned Coach silhouettes"
                ],
                "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: small brass-tone rectangular buckle with a decorative keeper; photo 4: unbranded zipper pull; no Coach engraving visible",
                    "leather_description": "photo 1: black smooth-to lightly pebbled leather with prominent creasing and surface sheen; apparent wear but no holes or major tears visible",
                    "lining_description": "photo 4: dark fabric lining with several compartments and a visible lighter patterned\/textured item or pocket interior; no brand label visible",
                    "strap_construction": "photos 1 and 3: long narrow adjustable leather shoulder strap attached at side tabs; loose strap end is visible",
                    "stitching_description": "photos 1-4: generally even dark stitching around the flap, pockets, and perimeter, with some visible wear and slight irregularity at strap attachments"
                },
                "possible_model_reasoning": [
                    "The flap, front buckle accent, and rear zip pocket do not closely match the listed classic Coach turnlock styles; no Coach model is proposed without a brand identifier.",
                    "Seller's 1990s claim is unverified by the photos; the fabric lining and construction support only a broad older or modern-vintage appearance, not a specific Coach era.",
                    "Condition: Good; visible creasing and surface wear across the front leather (photos 1-2), while no major tears or broken hardware are apparent. Interior condition is only partially shown."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.08,
                "coach_probability": 0.08,
                "confidence": 0.68,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 12,
                "image_quality_score": 0.68,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket straight-on in raking light to confirm no creed patch (photo 5 is angled and partial)",
                    "close-up of any interior fabric \/ leather brand tag glimpsed in photo 5 interior pocket",
                    "close-up of buckle, back zipper pull and any hardware stamps",
                    "bottom and side views showing corners and construction"
                ],
                "negative_evidence": [
                    "photo 1,2,3,6: closure is front buckle accent, not Coach turnlock geometry - no turnlock present",
                    "photo 5: interior appears fabric-lined with multiple compartments, not unlined suede-back glove-tanned leather of vintage Coach classics",
                    "photo 4: exterior back zip pocket with long leather pull tab; not a standard 1980s-1990s Coach classic layout",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible in any view",
                    "photo 1,3,4,6: thin flat crossbody strap with simple knot adjustment, not Coach buckle-adjustable strap with brass slides or dogleash clips"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone buckle at front flap and brass-tone back zipper; tone aged\/dull, no COACH engraving legible; no turnlock present",
                    "leather_description": "black leather with wrinkled \/ crushed grain and sheen, appears soft thin leather, not clearly full-grain glove-tanned cowhide",
                    "lining_description": "photo 5: dark fabric lining visible inside flap and main compartments; not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "dark stitching around flap and front pocket, appears even but no close-up to assess; thread matched to leather",
                    "strap_construction": "thin flat black leather crossbody strap, long, simple adjustment, attached at sides; no brass slides or dogleash clips visible",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-3: small black leather flap crossbody bag, leather handbag population where misidentified Coach can hide",
                    "photo 1-4: brass-tone hardware consistent in tone front buckle and back zip",
                    "photo 1: overall size and flap + front pocket silhouette vaguely reminiscent of small 1980s-1990s crossbody bags"
                ],
                "possible_model_reasoning": [
                    "Closest Coach catalog shape is Chelsea Crossbody (8810) - magnetic snap under buckle-detail flap - but this bag shows a functional buckle accent, fabric lining, back zip, and no creed or Coach hardware, so it does not match; no other turnlock classic (Dinky 9375, Pocket Purse 9755, City Bag 9790) fits buckle closure and lined interior",
                    "Era reasoning: seller states 90s vintage; construction with fabric lining and thin strap suggests 1990s-2000s generic leather bag, not 1975-1993 unlined brass Coach era; no identifier to date as Coach",
                    "Condition: Very Good to Good; leather shows creasing and surface wear but no major tears visible (photo 2-3), corners not shown, interior not fully shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.08,
                "vintage_probability": 0.45
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18088,
            "output_tokens": 829,
            "total_tokens": 18917,
            "estimated_cost_usd": 0.009225
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18640,
            "output_tokens": 1557,
            "total_tokens": 20197,
            "estimated_cost_usd": 0.004974
        }
    ]
}