Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.015,
    "vintage_probability": 0.51,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.805,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.905,
    "recommended_max_bid": 10,
    "estimated_resale_low": 11.5,
    "estimated_resale_high": 35,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a handbag with a flap, beaded body, and chain shoulder strap.",
        "photo 2: The interior and textile construction are visible and consistent with a beaded evening purse.",
        "photo 4: Chain attachments and beadwork appear intact."
    ],
    "negative_evidence": [
        "photo 1: The bag is covered in white beads and has a silver-tone chain, not the leather construction and solid-brass classic hardware typical of vintage Coach.",
        "photo 2: The interior is fabric-lined and no Coach creed patch, wordmark, or horse-and-carriage is visible.",
        "photo 3: The visible exterior has no Coach branding or leather hangtag.",
        "photo 4: The hardware appears to be a generic chain strap rather than a Coach turnlock or vintage Coach strap construction.",
        "Listing title: Seller identifies it as an unbranded beaded purse; the description provides no Coach-related evidence.",
        "photo 1: body is all-over glass-bead beaded textile, not glove-tanned leather",
        "photo 1-4: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 1,4: thin silver-tone chain strap, not solid brass Coach hardware",
        "photo 2-3: white satin-type fabric lining, not unlined suede interior of vintage Coach classics",
        "photo 1-6: beaded clutch\/shoulder silhouette with no turnlock and no catalog Coach match"
    ],
    "missing_information": [
        "photo 2-3: A straight-on, fully emptied interior view of every pocket and seam, including any labels or stamps.",
        "photo 1-4: Close-ups of clasp, zipper, chain attachments, and any small maker mark.",
        "photo 1: Dimensions and weight for comparison with vintage beaded evening purses.",
        "photo 1-4: Clear views of the bottom, side seams, and beadwork for condition assessment.",
        "interior brand label or maker mark close-up if present",
        "dimensions and closure detail"
    ],
    "authenticity_concerns": [
        "photo 1-4: No Coach identifier is visible, and the beaded textile construction is inconsistent with the Coach vintage leather handbag population.",
        "photo 2: Fabric lining and bead-covered exterior suggest a non-Coach evening purse rather than a Coach model.",
        "photo 1: The generic silver-tone chain and beaded design do not match a recognizable Coach silhouette or hardware system."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match: the beaded evening-purse construction, fabric lining, and chain strap do not correspond to the listed vintage Coach leather models.",
        "Condition: approximately Good to Very Good from the photos; the beadwork appears largely intact, but the interior shows discoloration or age-related marks in photo 2 and odor, hidden damage, and clasp function are unknown.",
        "No Coach model fits: Coach did not make beaded evening bags of this type in glove-tanned or signature lines; material, hardware and lining are inconsistent with any Coach era",
        "Condition: Very Good to Excellent for beaded type; beadwork largely intact in photos with minor gaps visible photo 5,6, light soiling on lining photo 2; full interior and bottom not shown"
    ],
    "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 1-4: Silver-tone chain shoulder strap and small metal attachment hardware are visible; no Coach engraving is visible.",
        "leather_description": "photo 1-4: No leather body is visible; the exterior is densely covered with small white round beads and elongated bugle beads on a textile backing.",
        "lining_description": "photo 2-3: Light-colored fabric lining is visible inside the flap and body; no label or creed patch is visible.",
        "strap_construction": "photo 1 and photo 4: Long silver-tone chain strap attached at the sides; no leather shoulder strap is visible.",
        "stitching_description": "photo 2-4: Textile edges and beadwork are visible, but detailed stitching quality is not sufficiently clear to assess."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0067,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.01,
                "vintage_probability": 0.72,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a handbag with a flap, beaded body, and chain shoulder strap.",
                    "photo 2: The interior and textile construction are visible and consistent with a beaded evening purse.",
                    "photo 4: Chain attachments and beadwork appear intact."
                ],
                "negative_evidence": [
                    "photo 1: The bag is covered in white beads and has a silver-tone chain, not the leather construction and solid-brass classic hardware typical of vintage Coach.",
                    "photo 2: The interior is fabric-lined and no Coach creed patch, wordmark, or horse-and-carriage is visible.",
                    "photo 3: The visible exterior has no Coach branding or leather hangtag.",
                    "photo 4: The hardware appears to be a generic chain strap rather than a Coach turnlock or vintage Coach strap construction.",
                    "Listing title: Seller identifies it as an unbranded beaded purse; the description provides no Coach-related evidence."
                ],
                "missing_information": [
                    "photo 2-3: A straight-on, fully emptied interior view of every pocket and seam, including any labels or stamps.",
                    "photo 1-4: Close-ups of clasp, zipper, chain attachments, and any small maker mark.",
                    "photo 1: Dimensions and weight for comparison with vintage beaded evening purses.",
                    "photo 1-4: Clear views of the bottom, side seams, and beadwork for condition assessment."
                ],
                "authenticity_concerns": [
                    "photo 1-4: No Coach identifier is visible, and the beaded textile construction is inconsistent with the Coach vintage leather handbag population.",
                    "photo 2: Fabric lining and bead-covered exterior suggest a non-Coach evening purse rather than a Coach model.",
                    "photo 1: The generic silver-tone chain and beaded design do not match a recognizable Coach silhouette or hardware system."
                ],
                "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 1-4: Silver-tone chain shoulder strap and small metal attachment hardware are visible; no Coach engraving is visible.",
                    "leather_description": "photo 1-4: No leather body is visible; the exterior is densely covered with small white round beads and elongated bugle beads on a textile backing.",
                    "lining_description": "photo 2-3: Light-colored fabric lining is visible inside the flap and body; no label or creed patch is visible.",
                    "strap_construction": "photo 1 and photo 4: Long silver-tone chain strap attached at the sides; no leather shoulder strap is visible.",
                    "stitching_description": "photo 2-4: Textile edges and beadwork are visible, but detailed stitching quality is not sufficiently clear to assess."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match: the beaded evening-purse construction, fabric lining, and chain strap do not correspond to the listed vintage Coach leather models.",
                    "Condition: approximately Good to Very Good from the photos; the beadwork appears largely intact, but the interior shows discoloration or age-related marks in photo 2 and odor, hidden damage, and clasp function are unknown."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.9,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 8,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "interior brand label or maker mark close-up if present",
                    "dimensions and closure detail"
                ],
                "negative_evidence": [
                    "photo 1: body is all-over glass-bead beaded textile, not glove-tanned leather",
                    "photo 1-4: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 1,4: thin silver-tone chain strap, not solid brass Coach hardware",
                    "photo 2-3: white satin-type fabric lining, not unlined suede interior of vintage Coach classics",
                    "photo 1-6: beaded clutch\/shoulder silhouette with no turnlock and no catalog Coach match"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "thin silver-tone metal chain shoulder strap visible photo 1,4; no turnlock, no brass hardware visible",
                    "leather_description": "no leather visible; exterior is cream\/white seed beads and bugle beads on mesh textile base photo 1,5,6",
                    "lining_description": "white satin-like fabric lining visible inside flap photo 2,3",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible; no leather stitching visible due to beaded construction",
                    "strap_construction": "thin silver-tone curb chain, doubled, attached with small rings at sides photo 1,4",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: Coach did not make beaded evening bags of this type in glove-tanned or signature lines; material, hardware and lining are inconsistent with any Coach era",
                    "Condition: Very Good to Excellent for beaded type; beadwork largely intact in photos with minor gaps visible photo 5,6, light soiling on lining photo 2; full interior and bottom not shown"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28779,
            "output_tokens": 921,
            "total_tokens": 29700,
            "estimated_cost_usd": 0.013722
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30093,
            "output_tokens": 1102,
            "total_tokens": 31195,
            "estimated_cost_usd": 0.0069
        }
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}