Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.615,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.79,
    "seller_misidentification_probability": 0.025,
    "confidence": 0.89,
    "recommended_max_bid": 8.5,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: handbag is covered in dense cream-and-metal beadwork with floral decoration, unlike typical Coach leather, canvas, or suede construction",
        "photo 2: visible fabric lining and metal zipper are consistent with a beaded evening bag, not a classic vintage Coach construction",
        "photos 1, 4, 5 and 6: no legible COACH wordmark, horse-and-carriage, creed patch, or Coach hangtag is visible",
        "photo 3: exposed fabric backing, beadwork, and fraying are visible; no Coach identifier appears",
        "photo 1: entire exterior is all-over glass beading on fabric base, not glove-tanned leather",
        "photo 2: tan woven fabric lining with zip closure, no leather creed patch on back wall",
        "photo 3: bead loss exposing woven base fabric at end, inconsistent with Coach leather construction",
        "photo 1-6: no COACH wordmark, horse-and-carriage, turnlock, solid brass hardware, or leather hangtag visible",
        "photo 4-6: small beaded evening clutch silhouette ~6-7 in wide, not a catalog Coach classic shape"
    ],
    "missing_information": [
        "photo 2: interior back wall and pockets should be photographed fully to confirm whether any label or stamped patch is present",
        "request a close-up of any interior label, maker tag, zipper pull, or hardware markings",
        "request photos of the reverse, bottom, and all seams for maker identification",
        "seller-stated dimensions and any provenance or country-of-origin information are not provided",
        "close-up of any interior brand or content label if present",
        "exact extent of bead loss and base fabric weakness beyond photo 3"
    ],
    "authenticity_concerns": [
        "The bag's beaded evening-bag construction, fabric lining, and lack of Coach identifiers strongly indicate a non-Coach lookalike or unrelated vintage accessory rather than a Coach product",
        "photo 1-6: beaded fabric construction is inconsistent with any Coach era leather or canvas construction",
        "photo 1-6: no creed patch, COACH wordmark, hangtag, or branded hardware visible"
    ],
    "possible_model_reasoning": [
        "Not a Coach model: beaded evening-bag materials, fabric lining, zip top and beaded strap do not match any 1970s-1990s glove-tanned classic or modern Coach line",
        "Era reasoning: beaded floral clutch styling suggests vintage-style evening bag but construction is non-Coach, so non-Coach era label applied",
        "Condition: Good to Fair; photo 3 shows bead loss and exposed base fabric at one end, plus general wear and loose threads; interior lining appears intact in photo 2"
    ],
    "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": "photo 1: small metallic floral\/starburst embellishments, a metal zipper, and a beaded\/chain-style handle are visible; no Coach-marked hardware is visible",
        "leather_description": "not leather - cream and gold-tone glass beads sewn to fabric base in floral pattern",
        "lining_description": "photo 2: tan\/beige fabric lining is visible, with some loose or frayed material near the opening",
        "strap_construction": "photos 1, 4 and 6: narrow beaded handle or shoulder strap attached at the sides by small metal chain hardware",
        "stitching_description": "photos 2 and 3: beadwork is attached to a fabric-backed body; loose threads and fraying are visible around the opening and side area"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0018,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.68,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: handbag is covered in dense cream-and-metal beadwork with floral decoration, unlike typical Coach leather, canvas, or suede construction",
                    "photo 2: visible fabric lining and metal zipper are consistent with a beaded evening bag, not a classic vintage Coach construction",
                    "photos 1, 4, 5 and 6: no legible COACH wordmark, horse-and-carriage, creed patch, or Coach hangtag is visible",
                    "photo 3: exposed fabric backing, beadwork, and fraying are visible; no Coach identifier appears"
                ],
                "missing_information": [
                    "photo 2: interior back wall and pockets should be photographed fully to confirm whether any label or stamped patch is present",
                    "request a close-up of any interior label, maker tag, zipper pull, or hardware markings",
                    "request photos of the reverse, bottom, and all seams for maker identification",
                    "seller-stated dimensions and any provenance or country-of-origin information are not provided"
                ],
                "authenticity_concerns": [
                    "The bag's beaded evening-bag construction, fabric lining, and lack of Coach identifiers strongly indicate a non-Coach lookalike or unrelated vintage accessory rather than a Coach product"
                ],
                "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: small metallic floral\/starburst embellishments, a metal zipper, and a beaded\/chain-style handle are visible; no Coach-marked hardware is visible",
                    "leather_description": "not_visible",
                    "lining_description": "photo 2: tan\/beige fabric lining is visible, with some loose or frayed material near the opening",
                    "strap_construction": "photos 1, 4 and 6: narrow beaded handle or shoulder strap attached at the sides by small metal chain hardware",
                    "stitching_description": "photos 2 and 3: beadwork is attached to a fabric-backed body; loose threads and fraying are visible around the opening and side area"
                },
                "possible_model_reasoning": [],
                "confidence": 0.9,
                "recommended_max_bid": 12,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1-6: beaded fabric construction is inconsistent with any Coach era leather or canvas construction",
                    "photo 1-6: no creed patch, COACH wordmark, hangtag, or branded hardware visible"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 15,
                "estimated_resale_low": 5,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "close-up of any interior brand or content label if present",
                    "exact extent of bead loss and base fabric weakness beyond photo 3"
                ],
                "negative_evidence": [
                    "photo 1: entire exterior is all-over glass beading on fabric base, not glove-tanned leather",
                    "photo 2: tan woven fabric lining with zip closure, no leather creed patch on back wall",
                    "photo 3: bead loss exposing woven base fabric at end, inconsistent with Coach leather construction",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, turnlock, solid brass hardware, or leather hangtag visible",
                    "photo 4-6: small beaded evening clutch silhouette ~6-7 in wide, not a catalog Coach classic shape"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone metal zipper around top with small pull, beaded loop handle with metal ball chain detail; no solid brass turnlock or branded hardware visible",
                    "leather_description": "not leather - cream and gold-tone glass beads sewn to fabric base in floral pattern",
                    "lining_description": "tan \/ champagne woven fabric lining visible in photo 2, plain with interior slip detail",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible as leather stitching; beaded weave with fabric base, seam stitching not clearly shown",
                    "strap_construction": "short single beaded strap\/handle continuous with beaded body, no leather strap, buckle or dogleash clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Not a Coach model: beaded evening-bag materials, fabric lining, zip top and beaded strap do not match any 1970s-1990s glove-tanned classic or modern Coach line",
                    "Era reasoning: beaded floral clutch styling suggests vintage-style evening bag but construction is non-Coach, so non-Coach era label applied",
                    "Condition: Good to Fair; photo 3 shows bead loss and exposed base fabric at one end, plus general wear and loose threads; interior lining appears intact in photo 2"
                ],
                "possible_models": [],
                "recommended_max_bid": 5,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.55
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17829,
            "output_tokens": 775,
            "total_tokens": 18604,
            "estimated_cost_usd": 0.008992
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18171,
            "output_tokens": 1573,
            "total_tokens": 19744,
            "estimated_cost_usd": 0.004893
        }
    ]
}