Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.06,
    "vintage_probability": 0.45,
    "authenticity_confidence": 0.05,
    "image_quality_score": 0.78,
    "seller_misidentification_probability": 0.06,
    "confidence": 0.79,
    "recommended_max_bid": 10,
    "estimated_resale_low": 9,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather-looking black envelope shoulder bag with a detachable strap and metal clasp.",
        "photo 2: gold-tone hardware and a compact flap silhouette are broadly compatible with some vintage handbag construction.",
        "photo 1-2: leather envelope flap shoulder bag \/ clutch with detachable strap, a population where misidentified Coach can hide",
        "photo 1-4: dogleash-type swivel strap clips similar in function to vintage detachable straps"
    ],
    "negative_evidence": [
        "photo 2: the central closure is a pointed decorative clasp rather than a recognizable vintage Coach turnlock.",
        "photo 4: interior shows ribbed synthetic-looking lining and no visible Coach creed patch, wordmark, or horse-and-carriage mark.",
        "photo 5: interior leather panel and closure hardware show generic construction rather than a catalog-specific Coach layout.",
        "photo 3: rear exterior is entirely unmarked, with no visible Coach branding.",
        "photo 1: seller identifies the item as unbranded; this is consistent with the absence of any visible Coach identifier, though it is not proof by itself.",
        "photo 5-6: underside of flap is lined with black ribbed fabric, not unlined suede-back glove-tanned leather expected for vintage Coach classics",
        "photo 1-2: front clasp is narrow teardrop toggle, not wide thin oval-to-rounded-rectangle Coach turnlock geometry",
        "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible",
        "photo 5-6: interior compartment shows framed kisslock bar and fabric lining, not Coach classic zip-pocket plus slip-pocket unlined layout",
        "photo 1-4: leather is smooth high-sheen black with surface wrinkling, not matte-to-satin glove-tanned full-grain"
    ],
    "missing_information": [
        "photo 4-6: no close, straight-on photograph of every interior pocket or seam where a creed or fabric tag might be located.",
        "photo 1-6: no close-up of hardware backs, clasp markings, or zipper-pull markings.",
        "photo 1-6: seller-stated dimensions, material composition, and country of manufacture are not provided.",
        "photo 5-6: full emptied interior and any interior leather creed patch or fabric brand label not shown",
        "photo 1-2: close-up of front clasp front and back plate and any COACH engraving not shown",
        "photo 3-4: bottom view with all four corners not shown",
        "hangtag both faces if present not shown"
    ],
    "authenticity_concerns": [
        "photo 2: the generic decorative clasp and synthetic-looking lining are inconsistent with the solid-brass, unlined or era-appropriate construction expected of many classic vintage Coach envelope-style bags.",
        "photo 4: no Coach identifier is visible despite the interior being shown; this substantially favors a non-Coach lookalike or generic vintage bag."
    ],
    "possible_model_reasoning": [
        "photo 1-5: envelope clutch with a detachable shoulder strap does not closely match the listed classic Coach models, and no Coach style number or identifier is visible.",
        "photo 4-5: ribbed lining and decorative clasp point toward a generic vintage accessory rather than a classic unlined glove-tanned Coach bag.",
        "photo 1-5: condition appears Good; visible creasing, scratches, and surface wear are present, while the strap and hardware appear attached and functional in the photos. Interior odor, mold, and hidden damage cannot be assessed.",
        "No Coach catalog match: envelope clutch with teardrop toggle, fabric-lined flap and framed interior does not match Convertible Clutch (9635) or other classics which are unlined glove-tanned with brass turnlock",
        "Era reasoning: fabric lining, plated gold-tone hardware and toggle form suggest non-Coach vintage-style or modern department-store bag, not NYC\/US creed era construction",
        "Condition: Very Good; light surface scuffs and sheen wear visible photo 1-4, strap appears intact, bottom corners and full interior 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 1-5: gold-tone side clips and a pointed, teardrop-shaped central clasp; no readable branding or Coach engraving is visible.",
        "leather_description": "photo 1-5: black smooth, glossy leather-like material with substantial creasing and surface wear; exact leather type is not verifiable.",
        "lining_description": "photo 4-5: black ribbed textile-looking lining is visible inside the flap; material and condition are not fully verifiable.",
        "strap_construction": "photo 1-3: narrow black strap attached with gold-tone swivel clips; strap has visible creasing and wear.",
        "stitching_description": "photo 1-5: perimeter stitching appears generally even and machine-made; close stress-point inspection is unavailable."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.005,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.07,
                "vintage_probability": 0.55,
                "authenticity_confidence": 0.05,
                "image_quality_score": 0.91,
                "seller_misidentification_probability": 0.07,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather-looking black envelope shoulder bag with a detachable strap and metal clasp.",
                    "photo 2: gold-tone hardware and a compact flap silhouette are broadly compatible with some vintage handbag construction."
                ],
                "negative_evidence": [
                    "photo 2: the central closure is a pointed decorative clasp rather than a recognizable vintage Coach turnlock.",
                    "photo 4: interior shows ribbed synthetic-looking lining and no visible Coach creed patch, wordmark, or horse-and-carriage mark.",
                    "photo 5: interior leather panel and closure hardware show generic construction rather than a catalog-specific Coach layout.",
                    "photo 3: rear exterior is entirely unmarked, with no visible Coach branding.",
                    "photo 1: seller identifies the item as unbranded; this is consistent with the absence of any visible Coach identifier, though it is not proof by itself."
                ],
                "missing_information": [
                    "photo 4-6: no close, straight-on photograph of every interior pocket or seam where a creed or fabric tag might be located.",
                    "photo 1-6: no close-up of hardware backs, clasp markings, or zipper-pull markings.",
                    "photo 1-6: seller-stated dimensions, material composition, and country of manufacture are not provided."
                ],
                "authenticity_concerns": [
                    "photo 2: the generic decorative clasp and synthetic-looking lining are inconsistent with the solid-brass, unlined or era-appropriate construction expected of many classic vintage Coach envelope-style bags.",
                    "photo 4: no Coach identifier is visible despite the interior being shown; this substantially favors a non-Coach lookalike or generic vintage 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 1-5: gold-tone side clips and a pointed, teardrop-shaped central clasp; no readable branding or Coach engraving is visible.",
                    "leather_description": "photo 1-5: black smooth, glossy leather-like material with substantial creasing and surface wear; exact leather type is not verifiable.",
                    "lining_description": "photo 4-5: black ribbed textile-looking lining is visible inside the flap; material and condition are not fully verifiable.",
                    "strap_construction": "photo 1-3: narrow black strap attached with gold-tone swivel clips; strap has visible creasing and wear.",
                    "stitching_description": "photo 1-5: perimeter stitching appears generally even and machine-made; close stress-point inspection is unavailable."
                },
                "possible_model_reasoning": [
                    "photo 1-5: envelope clutch with a detachable shoulder strap does not closely match the listed classic Coach models, and no Coach style number or identifier is visible.",
                    "photo 4-5: ribbed lining and decorative clasp point toward a generic vintage accessory rather than a classic unlined glove-tanned Coach bag.",
                    "photo 1-5: condition appears Good; visible creasing, scratches, and surface wear are present, while the strap and hardware appear attached and functional in the photos. Interior odor, mold, and hidden damage cannot be assessed."
                ],
                "confidence": 0.88,
                "recommended_max_bid": 8,
                "estimated_resale_low": 8,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.05,
                "confidence": 0.7,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo 5-6: full emptied interior and any interior leather creed patch or fabric brand label not shown",
                    "photo 1-2: close-up of front clasp front and back plate and any COACH engraving not shown",
                    "photo 3-4: bottom view with all four corners not shown",
                    "hangtag both faces if present not shown"
                ],
                "negative_evidence": [
                    "photo 5-6: underside of flap is lined with black ribbed fabric, not unlined suede-back glove-tanned leather expected for vintage Coach classics",
                    "photo 1-2: front clasp is narrow teardrop toggle, not wide thin oval-to-rounded-rectangle Coach turnlock geometry",
                    "photo 1-4: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible",
                    "photo 5-6: interior compartment shows framed kisslock bar and fabric lining, not Coach classic zip-pocket plus slip-pocket unlined layout",
                    "photo 1-4: leather is smooth high-sheen black with surface wrinkling, not matte-to-satin glove-tanned full-grain"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone teardrop toggle clasp on envelope point with small bar receiver; thin detachable strap on gold-tone swivel dogleash clips; interior top frame bar in gold-tone",
                    "leather_description": "black smooth leather with glossy sheen and surface wrinkles\/scuffs, even edge stitching",
                    "lining_description": "black ribbed fabric visible on underside of flap in photo 5-6; main compartment interior not fully shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched edge stitching, even and straight where visible in photo 1-4",
                    "strap_construction": "thin flat detachable shoulder strap with swivel clips at both ends, stitched edges",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-2: leather envelope flap shoulder bag \/ clutch with detachable strap, a population where misidentified Coach can hide",
                    "photo 1-4: dogleash-type swivel strap clips similar in function to vintage detachable straps"
                ],
                "possible_model_reasoning": [
                    "No Coach catalog match: envelope clutch with teardrop toggle, fabric-lined flap and framed interior does not match Convertible Clutch (9635) or other classics which are unlined glove-tanned with brass turnlock",
                    "Era reasoning: fabric lining, plated gold-tone hardware and toggle form suggest non-Coach vintage-style or modern department-store bag, not NYC\/US creed era construction",
                    "Condition: Very Good; light surface scuffs and sheen wear visible photo 1-4, strap appears intact, bottom corners and full interior not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.05,
                "vintage_probability": 0.35
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28778,
            "output_tokens": 816,
            "total_tokens": 29594,
            "estimated_cost_usd": 0.01347
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30091,
            "output_tokens": 1495,
            "total_tokens": 31586,
            "estimated_cost_usd": 0.007214
        }
    ]
}