Vintage Coach Hunter

{
    "is_handbag_probability": 0.94,
    "coach_probability": 0.085,
    "vintage_probability": 0.41,
    "authenticity_confidence": 0.08,
    "image_quality_score": 0.635,
    "seller_misidentification_probability": 0.475,
    "confidence": 0.67,
    "recommended_max_bid": 11,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 32.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Structured black leather shoulder bag with a long strap and gold-tone hardware is within the broad population of vintage leather handbags that can sometimes include Coach examples.",
        "photo 2: Leather-like body, adjustable shoulder strap, and separate rear zipper compartment are visible.",
        "photo 1,2: black leather shoulder bag with brass-tone hardware in vintage style",
        "photo 3: solid brass-tone zipper with period-style pull consistent with older leather goods",
        "photo 1,2: seller scale mat shows ~10-12 inch wide portfolio size"
    ],
    "negative_evidence": [
        "photo 1: Front closure is a large rectangular gold-tone clasp rather than a recognizable vintage Coach turnlock.",
        "photo 3: Zipper pull appears to carry non-COACH decorative detailing; no legible Coach marking is visible.",
        "photos 1-7: No Coach wordmark, horse-and-carriage logo, hangtag, or creed patch is visible.",
        "photo 4: Hardware appears bright and highly plated, unlike the understated solid-brass hardware commonly seen on classic vintage Coach styles.",
        "photos 5-7: The bag's multi-compartment structured construction and closure do not closely match the listed classic Coach silhouettes.",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 1,4: closure is gold-tone rectangular snap\/clasp, not Coach turnlock with oval back plate and slim tab",
        "photo 1,2,5,6: rigid portfolio\/briefcase silhouette with top handles plus detachable shoulder strap does not match classic Coach catalog styles",
        "photo 1,2: bright plated gold-tone hardware, not dull solid brass vintage Coach hardware"
    ],
    "missing_information": [
        "Straight-on interior photo with all compartments emptied.",
        "Close-up of every interior label, leather patch, or sewn fabric tag.",
        "Close-up of the clasp, zipper pulls, strap attachments, and any hardware markings.",
        "Bottom, corners, and full strap photos to evaluate construction and condition.",
        "Seller-stated dimensions and any visible country-of-origin marking.",
        "creed patch straight-on in raking light and interior back wall \/ pockets not shown",
        "hangtag both faces and chain not shown",
        "hardware stamps and Made-in line not shown",
        "bottom corners and emptied interior not shown"
    ],
    "authenticity_concerns": [
        "The visible closure and hardware are generic and not characteristic enough to support Coach manufacture.",
        "No brand identifier is visible in the supplied photos, so a Coach attribution cannot be substantiated.",
        "The shiny plated hardware and decorative zipper pull are more consistent with a generic lookalike or other vintage leather brand than a classic Coach bag.",
        "photo 1,4: front clasp is rectangular press-snap style, not Coach Cashin turnlock geometry",
        "photo 1-6: no creed patch, wordmark, hangtag or Coach hardware stamp visible to support Coach manufacture"
    ],
    "possible_model_reasoning": [
        "No Coach model is assigned because the bag lacks a visible creed, serial\/style number, wordmark, hangtag, or recognizable Coach-specific silhouette.",
        "The structured multi-compartment shoulder\/briefcase form could be a generic vintage organizer-style bag, but the supplied views do not support a specific maker or model.",
        "Condition appears Good to Very Good from visible exterior views: minor surface wear and edge wear are present, but no major tear is clearly shown; interior and odor status are unknown.",
        "No Coach model fits: silhouette is a structured portfolio\/briefcase with top handles and snap clasp, not City Bag, Willis, Court, Station, Dinky or other classic flap-turnlock styles",
        "No serial decode possible; no creed or number visible",
        "Era cannot be fixed without identifiers; construction suggests generic 1980s-1990s leather portfolio",
        "Condition: Good to Very Good; exterior leather intact with light wear, strap pad worn light (photo 2), edges show light rubbing (photo 6), interior and bottom not shown so capped"
    ],
    "estimated_era": "unknown",
    "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 rectangular front clasp, gold-tone zipper hardware, strap buckle, and side attachment fittings visible; no legible brand engraving.",
        "leather_description": "Black smooth leather or leather-like material with a slightly glossy finish; exact material cannot be confirmed from photos.",
        "lining_description": "Interior compartments are not shown clearly enough to identify the lining material.",
        "strap_construction": "Long adjustable black shoulder strap with a gold-tone buckle and side attachments; strap appears narrow and constructed from matching black material.",
        "stitching_description": "Visible perimeter stitching is generally straight and regular, though close-up stitch quality is limited."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0251,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.1,
                "vintage_probability": 0.42,
                "authenticity_confidence": 0.08,
                "image_quality_score": 0.72,
                "seller_misidentification_probability": 0.88,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Structured black leather shoulder bag with a long strap and gold-tone hardware is within the broad population of vintage leather handbags that can sometimes include Coach examples.",
                    "photo 2: Leather-like body, adjustable shoulder strap, and separate rear zipper compartment are visible."
                ],
                "negative_evidence": [
                    "photo 1: Front closure is a large rectangular gold-tone clasp rather than a recognizable vintage Coach turnlock.",
                    "photo 3: Zipper pull appears to carry non-COACH decorative detailing; no legible Coach marking is visible.",
                    "photos 1-7: No Coach wordmark, horse-and-carriage logo, hangtag, or creed patch is visible.",
                    "photo 4: Hardware appears bright and highly plated, unlike the understated solid-brass hardware commonly seen on classic vintage Coach styles.",
                    "photos 5-7: The bag's multi-compartment structured construction and closure do not closely match the listed classic Coach silhouettes."
                ],
                "missing_information": [
                    "Straight-on interior photo with all compartments emptied.",
                    "Close-up of every interior label, leather patch, or sewn fabric tag.",
                    "Close-up of the clasp, zipper pulls, strap attachments, and any hardware markings.",
                    "Bottom, corners, and full strap photos to evaluate construction and condition.",
                    "Seller-stated dimensions and any visible country-of-origin marking."
                ],
                "authenticity_concerns": [
                    "The visible closure and hardware are generic and not characteristic enough to support Coach manufacture.",
                    "No brand identifier is visible in the supplied photos, so a Coach attribution cannot be substantiated.",
                    "The shiny plated hardware and decorative zipper pull are more consistent with a generic lookalike or other vintage leather brand than a classic Coach 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": "Bright gold-tone rectangular front clasp, gold-tone zipper hardware, strap buckle, and side attachment fittings visible; no legible brand engraving.",
                    "leather_description": "Black smooth leather or leather-like material with a slightly glossy finish; exact material cannot be confirmed from photos.",
                    "lining_description": "Interior compartments are not shown clearly enough to identify the lining material.",
                    "strap_construction": "Long adjustable black shoulder strap with a gold-tone buckle and side attachments; strap appears narrow and constructed from matching black material.",
                    "stitching_description": "Visible perimeter stitching is generally straight and regular, though close-up stitch quality is limited."
                },
                "possible_model_reasoning": [
                    "No Coach model is assigned because the bag lacks a visible creed, serial\/style number, wordmark, hangtag, or recognizable Coach-specific silhouette.",
                    "The structured multi-compartment shoulder\/briefcase form could be a generic vintage organizer-style bag, but the supplied views do not support a specific maker or model.",
                    "Condition appears Good to Very Good from visible exterior views: minor surface wear and edge wear are present, but no major tear is clearly shown; interior and odor status are unknown."
                ],
                "confidence": 0.72,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1,4: front clasp is rectangular press-snap style, not Coach Cashin turnlock geometry",
                    "photo 1-6: no creed patch, wordmark, hangtag or Coach hardware stamp visible to support Coach manufacture"
                ],
                "authenticity_confidence": 0.08,
                "coach_probability": 0.07,
                "confidence": 0.62,
                "estimated_era": "unknown",
                "estimated_resale_high": 30,
                "estimated_resale_low": 15,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.9,
                "missing_information": [
                    "creed patch straight-on in raking light and interior back wall \/ pockets not shown",
                    "hangtag both faces and chain not shown",
                    "hardware stamps and Made-in line not shown",
                    "bottom corners and emptied interior not shown"
                ],
                "negative_evidence": [
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 1,4: closure is gold-tone rectangular snap\/clasp, not Coach turnlock with oval back plate and slim tab",
                    "photo 1,2,5,6: rigid portfolio\/briefcase silhouette with top handles plus detachable shoulder strap does not match classic Coach catalog styles",
                    "photo 1,2: bright plated gold-tone hardware, not dull solid brass vintage Coach hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone rectangular front clasp with two rivets, brass-tone exposed coil zipper on back with branded pull, brass-tone buckle and strap rivets; tone is bright plated, not dull solid brass",
                    "leather_description": "black smooth leather with slight sheen, appears coated; no glove-tanned texture or patina visible",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "dark even straight stitching around flap edge visible in photo 1 and 4",
                    "strap_construction": "short top handles plus detachable adjustable shoulder strap with buckle slide and shoulder pad, attached at sides",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1,2: black leather shoulder bag with brass-tone hardware in vintage style",
                    "photo 3: solid brass-tone zipper with period-style pull consistent with older leather goods",
                    "photo 1,2: seller scale mat shows ~10-12 inch wide portfolio size"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: silhouette is a structured portfolio\/briefcase with top handles and snap clasp, not City Bag, Willis, Court, Station, Dinky or other classic flap-turnlock styles",
                    "No serial decode possible; no creed or number visible",
                    "Era cannot be fixed without identifiers; construction suggests generic 1980s-1990s leather portfolio",
                    "Condition: Good to Very Good; exterior leather intact with light wear, strap pad worn light (photo 2), edges show light rubbing (photo 6), interior and bottom not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.07,
                "vintage_probability": 0.4
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 33090,
            "output_tokens": 906,
            "total_tokens": 33996,
            "estimated_cost_usd": 0.01541
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 35560,
            "output_tokens": 1416,
            "total_tokens": 36976,
            "estimated_cost_usd": 0.008245
        }
    ]
}