Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.745,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.805,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.83,
    "recommended_max_bid": 9,
    "estimated_resale_low": 10,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a handbag with a structured rectangular body and top handle.",
        "photo 1: The seller's 1950s\u20131960s description is broadly consistent with the retro kisslock silhouette, though seller text is weak evidence."
    ],
    "negative_evidence": [
        "photo 1: The material appears smooth coated vinyl or synthetic leather rather than Coach glove-tanned cowhide.",
        "photo 1: The bag uses a metal kisslock frame with a stacked round knob, not a recognizable vintage Coach turnlock or documented Coach classic silhouette.",
        "photo 1: No Coach wordmark, horse-and-carriage, creed patch, hangtag, or other Coach identifier is visible in the exterior photos.",
        "photo 6: The handle interior shows extensive cracking\/crazing consistent with aging coated synthetic material.",
        "photo 1: The clean monochrome construction and decorative layered front panel are more consistent with a generic mid-century-style handbag than a Coach leather bag.",
        "photo 1-6: cream vinyl \/ coated faux material with high sheen, not glove-tanned cowhide - seller titles as Vinyl",
        "photo 1-6: top-frame kisslock \/ clasp closure with stacked ball clasp, not Coach turnlock geometry",
        "photo 1-6: structured 1950s-60s frame-purse silhouette with short top handle, no catalog Coach classic match",
        "photo 1-6: no COACH wordmark, no horse-and-carriage, no hangtag, no creed patch visible"
    ],
    "missing_information": [
        "photo 1-6: Interior, lining, interior labels, and any brand stamp are not shown.",
        "photo 1-6: Bottom, closure interior, and zipper or frame hardware details are not fully documented.",
        "photo 1-6: No close-up of any maker label or sewn-in tag is provided.",
        "photo of interior emptied and interior lining \/ pockets - no interior view provided",
        "creed patch \/ brand label close-up not shown",
        "bottom \/ corners \/ side close-ups and dimensions for condition and scale",
        "hardware stamps \/ zipper brand not shown"
    ],
    "authenticity_concerns": [
        "photo 1: The visible synthetic\/vinyl-looking material and generic kisslock construction are inconsistent with the usual vintage Coach leather handbag population.",
        "photo 6: Cracking on the handle coating suggests material degradation; this is not typical evidence of Coach glove-tanned leather."
    ],
    "possible_model_reasoning": [
        "The silhouette is a vintage-style framed\/kisslock handbag, but it does not match the listed classic Coach models, which generally use identifiable leather construction and Coach-specific hardware or markings.",
        "Seller's claimed 1950s\u20131960s era cannot be confirmed from the exterior photos; no Cashin-era label, metal Coach tag, or period Coach marking is visible.",
        "Condition: Good\/Fair; the exterior is relatively clean, but substantial handle cracking is visible in photo 6 and the interior is unknown.",
        "No Coach identifier visible in any of 6 exterior photos; material is vinyl per seller title, which excludes 1970s-1990s glove-tanned Coach classics per triage rule coach_probability <=0.05",
        "Silhouette is 1950s-60s frame purse with kiss-clasp, not a Cashin kisslock \/ Swinger \/ Double Header shape and has no Cashin fabric label, striped lining, or leatherware tag",
        "Condition: Excellent to Very Good exterior for age; uniform cream color, no corner wear visible (photo 4-5), light handle creasing \/ crazing (photo 6), interior and bottom not 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 and photo 6: Gold-tone metal kisslock frame with a stacked circular knob; small metal handle attachment rings are visible. No Coach engraving is visible.",
        "leather_description": "photo 1 and photo 6: Smooth cream-colored coated material, described by the seller as vinyl; it does not visibly resemble natural glove-tanned leather.",
        "lining_description": "not_visible - interior never shown",
        "strap_construction": "photo 1 and photo 6: Single short cream-colored top handle, stitched along its edges and attached to the frame with small rings; the handle coating is visibly cracked on the underside.",
        "stitching_description": "photo 1 and photo 6: Exterior perimeter stitching appears generally even, with visible wear and cracking around the handle and some frame corners."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0006,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.74,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.05,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a handbag with a structured rectangular body and top handle.",
                    "photo 1: The seller's 1950s\u20131960s description is broadly consistent with the retro kisslock silhouette, though seller text is weak evidence."
                ],
                "negative_evidence": [
                    "photo 1: The material appears smooth coated vinyl or synthetic leather rather than Coach glove-tanned cowhide.",
                    "photo 1: The bag uses a metal kisslock frame with a stacked round knob, not a recognizable vintage Coach turnlock or documented Coach classic silhouette.",
                    "photo 1: No Coach wordmark, horse-and-carriage, creed patch, hangtag, or other Coach identifier is visible in the exterior photos.",
                    "photo 6: The handle interior shows extensive cracking\/crazing consistent with aging coated synthetic material.",
                    "photo 1: The clean monochrome construction and decorative layered front panel are more consistent with a generic mid-century-style handbag than a Coach leather bag."
                ],
                "missing_information": [
                    "photo 1-6: Interior, lining, interior labels, and any brand stamp are not shown.",
                    "photo 1-6: Bottom, closure interior, and zipper or frame hardware details are not fully documented.",
                    "photo 1-6: No close-up of any maker label or sewn-in tag is provided."
                ],
                "authenticity_concerns": [
                    "photo 1: The visible synthetic\/vinyl-looking material and generic kisslock construction are inconsistent with the usual vintage Coach leather handbag population.",
                    "photo 6: Cracking on the handle coating suggests material degradation; this is not typical evidence of Coach glove-tanned leather."
                ],
                "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 6: Gold-tone metal kisslock frame with a stacked circular knob; small metal handle attachment rings are visible. No Coach engraving is visible.",
                    "leather_description": "photo 1 and photo 6: Smooth cream-colored coated material, described by the seller as vinyl; it does not visibly resemble natural glove-tanned leather.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1 and photo 6: Single short cream-colored top handle, stitched along its edges and attached to the frame with small rings; the handle coating is visibly cracked on the underside.",
                    "stitching_description": "photo 1 and photo 6: Exterior perimeter stitching appears generally even, with visible wear and cracking around the handle and some frame corners."
                },
                "possible_model_reasoning": [
                    "The silhouette is a vintage-style framed\/kisslock handbag, but it does not match the listed classic Coach models, which generally use identifiable leather construction and Coach-specific hardware or markings.",
                    "Seller's claimed 1950s\u20131960s era cannot be confirmed from the exterior photos; no Cashin-era label, metal Coach tag, or period Coach marking is visible.",
                    "Condition: Good\/Fair; the exterior is relatively clean, but substantial handle cracking is visible in photo 6 and the interior is unknown."
                ],
                "confidence": 0.86,
                "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": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.8,
                "estimated_era": "unknown",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior emptied and interior lining \/ pockets - no interior view provided",
                    "creed patch \/ brand label close-up not shown",
                    "bottom \/ corners \/ side close-ups and dimensions for condition and scale",
                    "hardware stamps \/ zipper brand not shown"
                ],
                "negative_evidence": [
                    "photo 1-6: cream vinyl \/ coated faux material with high sheen, not glove-tanned cowhide - seller titles as Vinyl",
                    "photo 1-6: top-frame kisslock \/ clasp closure with stacked ball clasp, not Coach turnlock geometry",
                    "photo 1-6: structured 1950s-60s frame-purse silhouette with short top handle, no catalog Coach classic match",
                    "photo 1-6: no COACH wordmark, no horse-and-carriage, no hangtag, no creed patch visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone top frame with stacked ball kiss-clasp (photo 6) and small wire eyelets attaching handle; aged tarnish, not solid brass Coach turnlock hardware",
                    "leather_description": "cream \/ off-white smooth vinyl \/ faux leather with coated sheen and fine grain emboss (photo 1-5), not matte glove-tanned full-grain cowhide",
                    "lining_description": "not_visible - interior never shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "thin edge stitching tone-on-tone around perimeter and handle (photo 4-6), no heavy matched Coach classic stitching visible",
                    "strap_construction": "short single top handle in same vinyl, stitched, looped through frame eyelets (photo 6)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any of 6 exterior photos; material is vinyl per seller title, which excludes 1970s-1990s glove-tanned Coach classics per triage rule coach_probability <=0.05",
                    "Silhouette is 1950s-60s frame purse with kiss-clasp, not a Cashin kisslock \/ Swinger \/ Double Header shape and has no Cashin fabric label, striped lining, or leatherware tag",
                    "Condition: Excellent to Very Good exterior for age; uniform cream color, no corner wear visible (photo 4-5), light handle creasing \/ crazing (photo 6), interior and bottom not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.75
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28500,
            "output_tokens": 811,
            "total_tokens": 29311,
            "estimated_cost_usd": 0.013346
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 29787,
            "output_tokens": 1378,
            "total_tokens": 31165,
            "estimated_cost_usd": 0.00706
        }
    ]
}