Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.035,
    "vintage_probability": 0.735,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.74,
    "seller_misidentification_probability": 0.075,
    "confidence": 0.8,
    "recommended_max_bid": 9,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Small leather-like structured handbag with a long chain shoulder strap, consistent with a vintage evening purse.",
        "photo 3: Metal frame and clasp are visible, but they do not show a recognizable Coach design or marking.",
        "photo 1,5,6: leather handbag body, consistent with vintage age claimed"
    ],
    "negative_evidence": [
        "photo 1: No visible Coach wordmark, horse-and-carriage, hangtag, or recognizable Coach silhouette.",
        "photo 2: Interior is visible without a Coach creed patch or other brand identifier.",
        "photo 3: Decorative geometric clasp and bright plated frame hardware are unlike the understated solid-brass hardware typical of classic vintage Coach.",
        "photo 6: Exterior appears highly glossy and heavily crackled, with construction more consistent with a generic vintage evening purse than Coach glove-tanned leather.",
        "photo 7: Chain and frame construction are generic and provide no Coach-specific evidence.",
        "photo 1,3,4,5,6: kisslock \/ frame evening-bag silhouette with full gold-tone perimeter frame and thin chain strap - not a catalog Coach classic silhouette",
        "photo 2: dark woven fabric lining with center zip divider - not unlined glove-tanned suede-back expected for 1960s-1990s Coach classics",
        "photo 1,3,4: bright shiny gold-tone plated frame and chain, textured clasp - not solid brass vintage Coach hardware with turnlock geometry",
        "photo 1-6: no COACH wordmark, no horse-and-carriage, no leather creed patch, no hangtag visible in any view",
        "photo 2: zipper pull appears marked but no COACH stamping legible; construction reads as generic 1960s evening bag"
    ],
    "missing_information": [
        "Straight-on close-up of every interior wall and pocket for any concealed label or creed.",
        "Close-up of the zipper pull, clasp reverse, and any hardware stamps.",
        "Photos of the bottom, side seams, and strap attachment points.",
        "Confirmation whether the exterior is genuine leather, coated material, or vinyl.",
        "Seller-stated measurements and condition details beyond 'perfect condition.'",
        "No creed patch or brand stamp shown - photo 2 interior shows no stamped leather patch, request straight-on interior wall views",
        "No hangtag, wordmark, or horse-and-carriage shown - request both faces of any tags",
        "No hardware brand stamps shown except zipper pull - request zipper pull and clasp markings",
        "No back, side, bottom views to assess construction and wear"
    ],
    "authenticity_concerns": [
        "No Coach identifiers are visible in the provided photos.",
        "The bright plated frame, decorative clasp, chain strap, and crackled glossy exterior do not align well with classic Coach construction.",
        "The seller's 1960s date is unverified; no period-specific Coach or Cashin label is shown."
    ],
    "possible_model_reasoning": [
        "The rectangular frame, chain strap, and decorative clasp fit a generic vintage evening purse rather than a cataloged Coach classic.",
        "A pre-1975 Coach frame or Cashin-era bag is theoretically possible, but no Cashin label, Coach cartouche, distinctive Coach hardware, or other supporting identifier is visible.",
        "Condition: Good to Very Good; the bag appears structurally intact, but extensive surface crackling and finish wear are visible in photos 5 and 6. Interior and hardware function are not fully assessable.",
        "No Coach model match: frame kisslock evening bag with chain and fabric lining does not correspond to Cashin Swinger\/Chubby Clutch\/Double Header kisslock styles which used crushed cowhide, Cashin hardware cues, striped linings and leather construction, none seen here",
        "Era reasoning: form and materials suggest generic 1960s-style evening bag, but without identifiers cannot assign Coach era label, therefore unknown",
        "Condition: Good to Very Good for age; leather shows crazing photo 5-6, frame bright, interior looks clean in photo 2 but bottom\/corners 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": "Bright gold-tone metal frame with a decorative textured clasp and fine chain strap; no Coach marking visible.",
        "leather_description": "Black glossy, crackled leather-like exterior is visible; exact material cannot be confirmed from photos.",
        "lining_description": "Dark fabric lining is visible, with a zippered interior compartment; no brand label is visible.",
        "strap_construction": "Long fine gold-tone chain attached at the upper sides.",
        "stitching_description": "Exterior stitching is not clearly visible; frame construction dominates the visible edges."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0019,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.04,
                "vintage_probability": 0.82,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.8,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Small leather-like structured handbag with a long chain shoulder strap, consistent with a vintage evening purse.",
                    "photo 3: Metal frame and clasp are visible, but they do not show a recognizable Coach design or marking."
                ],
                "negative_evidence": [
                    "photo 1: No visible Coach wordmark, horse-and-carriage, hangtag, or recognizable Coach silhouette.",
                    "photo 2: Interior is visible without a Coach creed patch or other brand identifier.",
                    "photo 3: Decorative geometric clasp and bright plated frame hardware are unlike the understated solid-brass hardware typical of classic vintage Coach.",
                    "photo 6: Exterior appears highly glossy and heavily crackled, with construction more consistent with a generic vintage evening purse than Coach glove-tanned leather.",
                    "photo 7: Chain and frame construction are generic and provide no Coach-specific evidence."
                ],
                "missing_information": [
                    "Straight-on close-up of every interior wall and pocket for any concealed label or creed.",
                    "Close-up of the zipper pull, clasp reverse, and any hardware stamps.",
                    "Photos of the bottom, side seams, and strap attachment points.",
                    "Confirmation whether the exterior is genuine leather, coated material, or vinyl.",
                    "Seller-stated measurements and condition details beyond 'perfect condition.'"
                ],
                "authenticity_concerns": [
                    "No Coach identifiers are visible in the provided photos.",
                    "The bright plated frame, decorative clasp, chain strap, and crackled glossy exterior do not align well with classic Coach construction.",
                    "The seller's 1960s date is unverified; no period-specific Coach or Cashin label is shown."
                ],
                "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 gold-tone metal frame with a decorative textured clasp and fine chain strap; no Coach marking visible.",
                    "leather_description": "Black glossy, crackled leather-like exterior is visible; exact material cannot be confirmed from photos.",
                    "lining_description": "Dark fabric lining is visible, with a zippered interior compartment; no brand label is visible.",
                    "strap_construction": "Long fine gold-tone chain attached at the upper sides.",
                    "stitching_description": "Exterior stitching is not clearly visible; frame construction dominates the visible edges."
                },
                "possible_model_reasoning": [
                    "The rectangular frame, chain strap, and decorative clasp fit a generic vintage evening purse rather than a cataloged Coach classic.",
                    "A pre-1975 Coach frame or Cashin-era bag is theoretically possible, but no Cashin label, Coach cartouche, distinctive Coach hardware, or other supporting identifier is visible.",
                    "Condition: Good to Very Good; the bag appears structurally intact, but extensive surface crackling and finish wear are visible in photos 5 and 6. Interior and hardware function are not fully assessable."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.78,
                "estimated_era": "unknown",
                "estimated_resale_high": 25,
                "estimated_resale_low": 5,
                "image_quality_score": 0.68,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "No creed patch or brand stamp shown - photo 2 interior shows no stamped leather patch, request straight-on interior wall views",
                    "No hangtag, wordmark, or horse-and-carriage shown - request both faces of any tags",
                    "No hardware brand stamps shown except zipper pull - request zipper pull and clasp markings",
                    "No back, side, bottom views to assess construction and wear"
                ],
                "negative_evidence": [
                    "photo 1,3,4,5,6: kisslock \/ frame evening-bag silhouette with full gold-tone perimeter frame and thin chain strap - not a catalog Coach classic silhouette",
                    "photo 2: dark woven fabric lining with center zip divider - not unlined glove-tanned suede-back expected for 1960s-1990s Coach classics",
                    "photo 1,3,4: bright shiny gold-tone plated frame and chain, textured clasp - not solid brass vintage Coach hardware with turnlock geometry",
                    "photo 1-6: no COACH wordmark, no horse-and-carriage, no leather creed patch, no hangtag visible in any view",
                    "photo 2: zipper pull appears marked but no COACH stamping legible; construction reads as generic 1960s evening bag"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone metal perimeter frame, textured rectangular kisslock clasp, thin gold-tone chain shoulder strap; bright plated appearance, not solid brass turnlock",
                    "leather_description": "black smooth leather body panels set in frame, surface crazing \/ crackle visible in photo 5 and 6, sheen suggests coated or dressy leather not matte glove-tanned",
                    "lining_description": "dark navy\/black woven fabric lining visible in photo 2 with center zip compartment, silver-tone zip teeth and gold-tone pull",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible",
                    "strap_construction": "thin gold-tone metal link chain attached to frame eyelets, photo 1",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1,5,6: leather handbag body, consistent with vintage age claimed"
                ],
                "possible_model_reasoning": [
                    "No Coach model match: frame kisslock evening bag with chain and fabric lining does not correspond to Cashin Swinger\/Chubby Clutch\/Double Header kisslock styles which used crushed cowhide, Cashin hardware cues, striped linings and leather construction, none seen here",
                    "Era reasoning: form and materials suggest generic 1960s-style evening bag, but without identifiers cannot assign Coach era label, therefore unknown",
                    "Condition: Good to Very Good for age; leather shows crazing photo 5-6, frame bright, interior looks clean in photo 2 but bottom\/corners not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.65
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18088,
            "output_tokens": 855,
            "total_tokens": 18943,
            "estimated_cost_usd": 0.009287
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18638,
            "output_tokens": 1364,
            "total_tokens": 20002,
            "estimated_cost_usd": 0.004819
        }
    ]
}