Vintage Coach Hunter

{
    "is_handbag_probability": 0.97,
    "coach_probability": 0.02,
    "vintage_probability": 0.025,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.715,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.86,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 20,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: Small blue crossbody with decorative studded\/cutout front, zipper closure, and long thin strap does not match a recognizable vintage Coach classic silhouette.",
        "photo 1: No visible Coach wordmark, horse-and-carriage, creed patch, or branded hangtag.",
        "photo 2: Back construction and narrow edge piping appear mass-market rather than vintage Coach glove-tanned leather construction.",
        "photo 3: Interior has a brown synthetic-looking fabric lining; vintage classic Coach bags are commonly unlined suede-backed leather, not this type of lining.",
        "photo 4: Zipper and trim appear lightweight and modern; no visible Coach-marked hardware.",
        "listing title: Seller describes the bag as unbranded and does not mention Coach.",
        "photo 1: laser-cut triangular cutout with all-over micro-studs - motif never used on vintage Coach classics",
        "photo 3, photo 4: shiny dark brown polyester \/ nylon pull-out lining, not unlined glove-tanned suede",
        "photo 1, photo 2: thin cord-like crossbody strap with simple knotted loop attachments, no brass buckle, dogleash clips, or dowel handle",
        "photo 1-4: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag, no turnlock visible",
        "photo 1: zip-top flat pouch silhouette with side stud rows does not match any Coach catalog style"
    ],
    "missing_information": [
        "photo 1-4: No close-up of any interior label, fabric tag, or zipper pull stamp.",
        "photo 1-4: Material composition and dimensions are not provided.",
        "photo 1-4: Bottom, strap attachment, and hardware close-ups are limited.",
        "photo of any interior brand \/ content tag or stamped lining (photos 3-4 show lining pulled out but no tag visible)",
        "close-up of zipper pull brand stamp and hardware tone",
        "material confirmation (leather vs faux\/PU) - surface looks synthetic in photos 1-2"
    ],
    "authenticity_concerns": [
        "photo 1: Decorative studded cutout treatment and synthetic-looking construction are inconsistent with the vintage Coach glove-tanned leather lines in the reference catalog.",
        "photo 3: Fabric-lined interior and apparent lightweight modern construction provide no support for Coach manufacture."
    ],
    "possible_model_reasoning": [
        "The bag is a small modern-looking zip crossbody with decorative studs and cutouts, not a close match for the listed vintage Coach models.",
        "No Coach identifier is visible, so there is no basis for assigning a Coach style number or era.",
        "Condition: Good to Very Good based on visible intact exterior; interior is wrinkled but no major tears are apparent. Odor, bottom wear, and hidden seam condition are unknown.",
        "No Coach model fits: zip-top studded cutout crossbody with polyester lining and knotted cord strap is inconsistent with all glove-tanned classic and modern Coach lines",
        "No identifier to decode: no creed, serial, wordmark, or hangtag visible in any photo",
        "Condition: Very Good to Like New appearance - surface uniform (photo 1-2), no corner wear shown, lining intact (photo 3-4); bottom corners and strap fold not shown in detail 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 and photo 3: Small zipper hardware and several small metallic studs are visible; no Coach engraving is legible. Hardware appears lightweight and modern.",
        "leather_description": "photo 1 and photo 2: Blue smooth, uniform material with a synthetic or coated appearance; natural glove-tanned leather is not evident.",
        "lining_description": "photo 3 and photo 4: Brown fabric lining is visible; no interior label or creed patch is shown.",
        "strap_construction": "photo 1 and photo 2: Long narrow blue strap attached at side tabs; strap appears thin and non-adjustable or adjustment is not visible.",
        "stitching_description": "photo 1 and photo 2: Machine-stitched perimeter seams are visible and generally even; detailed stress-point stitching is not assessable."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0007,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.02,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.05,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: Small blue crossbody with decorative studded\/cutout front, zipper closure, and long thin strap does not match a recognizable vintage Coach classic silhouette.",
                    "photo 1: No visible Coach wordmark, horse-and-carriage, creed patch, or branded hangtag.",
                    "photo 2: Back construction and narrow edge piping appear mass-market rather than vintage Coach glove-tanned leather construction.",
                    "photo 3: Interior has a brown synthetic-looking fabric lining; vintage classic Coach bags are commonly unlined suede-backed leather, not this type of lining.",
                    "photo 4: Zipper and trim appear lightweight and modern; no visible Coach-marked hardware.",
                    "listing title: Seller describes the bag as unbranded and does not mention Coach."
                ],
                "missing_information": [
                    "photo 1-4: No close-up of any interior label, fabric tag, or zipper pull stamp.",
                    "photo 1-4: Material composition and dimensions are not provided.",
                    "photo 1-4: Bottom, strap attachment, and hardware close-ups are limited."
                ],
                "authenticity_concerns": [
                    "photo 1: Decorative studded cutout treatment and synthetic-looking construction are inconsistent with the vintage Coach glove-tanned leather lines in the reference catalog.",
                    "photo 3: Fabric-lined interior and apparent lightweight modern construction provide no support for Coach manufacture."
                ],
                "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 and photo 3: Small zipper hardware and several small metallic studs are visible; no Coach engraving is legible. Hardware appears lightweight and modern.",
                    "leather_description": "photo 1 and photo 2: Blue smooth, uniform material with a synthetic or coated appearance; natural glove-tanned leather is not evident.",
                    "lining_description": "photo 3 and photo 4: Brown fabric lining is visible; no interior label or creed patch is shown.",
                    "strap_construction": "photo 1 and photo 2: Long narrow blue strap attached at side tabs; strap appears thin and non-adjustable or adjustment is not visible.",
                    "stitching_description": "photo 1 and photo 2: Machine-stitched perimeter seams are visible and generally even; detailed stress-point stitching is not assessable."
                },
                "possible_model_reasoning": [
                    "The bag is a small modern-looking zip crossbody with decorative studs and cutouts, not a close match for the listed vintage Coach models.",
                    "No Coach identifier is visible, so there is no basis for assigning a Coach style number or era.",
                    "Condition: Good to Very Good based on visible intact exterior; interior is wrinkled but no major tears are apparent. Odor, bottom wear, and hidden seam condition are unknown."
                ],
                "confidence": 0.87,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 20
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "photo of any interior brand \/ content tag or stamped lining (photos 3-4 show lining pulled out but no tag visible)",
                    "close-up of zipper pull brand stamp and hardware tone",
                    "material confirmation (leather vs faux\/PU) - surface looks synthetic in photos 1-2"
                ],
                "negative_evidence": [
                    "photo 1: laser-cut triangular cutout with all-over micro-studs - motif never used on vintage Coach classics",
                    "photo 3, photo 4: shiny dark brown polyester \/ nylon pull-out lining, not unlined glove-tanned suede",
                    "photo 1, photo 2: thin cord-like crossbody strap with simple knotted loop attachments, no brass buckle, dogleash clips, or dowel handle",
                    "photo 1-4: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag, no turnlock visible",
                    "photo 1: zip-top flat pouch silhouette with side stud rows does not match any Coach catalog style"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "small gold-tone zip top with dark tab pull (photo 1, photo 4); small silver-tone studs along sides and lower front (photo 1); no solid brass turnlock, buckle, or dogleash hardware visible",
                    "leather_description": "dark navy blue smooth pebbled-look material with mottled finish (photo 1, photo 2); appears thin synthetic \/ faux leather, not thick matte glove-tanned cowhide",
                    "lining_description": "dark brown shiny polyester lining pulled outside bag in photo 3 and photo 4; fully lined, no suede back visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight edge stitching around back slip pocket (photo 2) and top edge (photo 2); no heavy contrast or matched thick vintage stitching visible",
                    "strap_construction": "long thin non-adjustable cord strap in same blue material, looped through side tabs with knots (photo 1, photo 2)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: zip-top studded cutout crossbody with polyester lining and knotted cord strap is inconsistent with all glove-tanned classic and modern Coach lines",
                    "No identifier to decode: no creed, serial, wordmark, or hangtag visible in any photo",
                    "Condition: Very Good to Like New appearance - surface uniform (photo 1-2), no corner wear shown, lining intact (photo 3-4); bottom corners and strap fold not shown in detail so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 27096,
            "output_tokens": 775,
            "total_tokens": 27871,
            "estimated_cost_usd": 0.012698
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 28665,
            "output_tokens": 1202,
            "total_tokens": 29867,
            "estimated_cost_usd": 0.006695
        }
    ]
}