Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.835,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.805,
    "seller_misidentification_probability": 0.085,
    "confidence": 0.89,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 15,
    "estimated_resale_high": 42.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Structured leather handbag silhouette with a top handle and metal closure is clearly visible.",
        "photo 6: Interior stamping appears to read \"VIKI ORIGINAL,\" providing evidence of another brand rather than Coach.",
        "photo 1: leather handbag with metal hardware, the population where misidentified Coach could hide, but no Coach identifier seen"
    ],
    "negative_evidence": [
        "photo 1: No visible Coach wordmark, carriage, hangtag, or Coach-specific exterior branding.",
        "photo 2: The gold security clasp is a generic ridged latch, not a recognizable vintage Coach turnlock.",
        "photo 6: Interior branding reads \"VIKI ORIGINAL,\" not Coach, and the bright red fabric lining is inconsistent with classic unlined vintage Coach glove-tanned bags.",
        "photo 4: Handle attachment and hardware appear generic rather than characteristic of a catalogued Coach classic.",
        "photo 6: interior stamped VIKI ORIGINAL, not COACH or Coach creed",
        "photo 1,2,5: structured frame bag with top frame clasp, not a Coach turnlock or Coach catalog silhouette",
        "photo 6: red fabric lining with zip compartment, not unlined glove-tanned suede interior of vintage Coach classics",
        "photo 1-5: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible"
    ],
    "missing_information": [
        "photo 6: The interior stamp is somewhat faint; a straight-on close-up would confirm the complete brand text.",
        "No close-up of zipper-pull branding or any additional interior labels is provided.",
        "Seller's claimed 1950s date is not independently verifiable from the photos."
    ],
    "authenticity_concerns": [
        "photo 6: Visible branding identifies the bag as Viki Original, so it should not be treated as a Coach bag.",
        "photo 1: The structured, lined construction and generic latch do not match the usual construction cues of classic vintage Coach handbags."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the visible interior branding says Viki Original and the bag has a red fabric lining and generic security latch.",
        "Seller-described dimensions and structured silhouette may fit a mid-century handbag, but the claimed 1950s era is seller-provided and not established by a Coach identifier.",
        "Condition: Good to Very Good; visible handle wear, surface creasing, and minor interior wear are present, while the bottom, corners, and structure appear intact in the photos.",
        "No Coach model fits: frame-clasp construction, VIKI ORIGINAL interior stamp, red lined interior and handle attachment are inconsistent with any 1970s-1990s Coach classic; Condition: Very Good to Good; handle shows wear on one side (photo 4), minor interior wear per seller, structure intact"
    ],
    "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 2: Gold-tone ridged security latch; small gold-tone hardware at handle attachments and four bottom feet are visible. No Coach engraving is visible.",
        "leather_description": "photo 1 and photo 5: Dark navy, smooth-looking leather or coated leather with a structured, lightly glossy surface; visible creasing and edge wear.",
        "lining_description": "photo 6: Bright red fabric lining with a zippered compartment and additional slip compartments; faint gold interior branding reads \"VIKI ORIGINAL.\"",
        "strap_construction": "photo 1, photo 3, and photo 4: Single fixed top handle attached with small hardware; handle shows creasing\/wear and is not a Coach dogleash-clip or adjustable crossbody strap.",
        "stitching_description": "photo 1, photo 3, and photo 5: Generally straight machine stitching around the perimeter and handle, with visible wear and slight irregularity in places."
    },
    "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": 0.82,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.91,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Structured leather handbag silhouette with a top handle and metal closure is clearly visible.",
                    "photo 6: Interior stamping appears to read \"VIKI ORIGINAL,\" providing evidence of another brand rather than Coach."
                ],
                "negative_evidence": [
                    "photo 1: No visible Coach wordmark, carriage, hangtag, or Coach-specific exterior branding.",
                    "photo 2: The gold security clasp is a generic ridged latch, not a recognizable vintage Coach turnlock.",
                    "photo 6: Interior branding reads \"VIKI ORIGINAL,\" not Coach, and the bright red fabric lining is inconsistent with classic unlined vintage Coach glove-tanned bags.",
                    "photo 4: Handle attachment and hardware appear generic rather than characteristic of a catalogued Coach classic."
                ],
                "missing_information": [
                    "photo 6: The interior stamp is somewhat faint; a straight-on close-up would confirm the complete brand text.",
                    "No close-up of zipper-pull branding or any additional interior labels is provided.",
                    "Seller's claimed 1950s date is not independently verifiable from the photos."
                ],
                "authenticity_concerns": [
                    "photo 6: Visible branding identifies the bag as Viki Original, so it should not be treated as a Coach bag.",
                    "photo 1: The structured, lined construction and generic latch do not match the usual construction cues of classic vintage Coach handbags."
                ],
                "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 2: Gold-tone ridged security latch; small gold-tone hardware at handle attachments and four bottom feet are visible. No Coach engraving is visible.",
                    "leather_description": "photo 1 and photo 5: Dark navy, smooth-looking leather or coated leather with a structured, lightly glossy surface; visible creasing and edge wear.",
                    "lining_description": "photo 6: Bright red fabric lining with a zippered compartment and additional slip compartments; faint gold interior branding reads \"VIKI ORIGINAL.\"",
                    "strap_construction": "photo 1, photo 3, and photo 4: Single fixed top handle attached with small hardware; handle shows creasing\/wear and is not a Coach dogleash-clip or adjustable crossbody strap.",
                    "stitching_description": "photo 1, photo 3, and photo 5: Generally straight machine stitching around the perimeter and handle, with visible wear and slight irregularity in places."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the visible interior branding says Viki Original and the bag has a red fabric lining and generic security latch.",
                    "Seller-described dimensions and structured silhouette may fit a mid-century handbag, but the claimed 1950s era is seller-provided and not established by a Coach identifier.",
                    "Condition: Good to Very Good; visible handle wear, surface creasing, and minor interior wear are present, while the bottom, corners, and structure appear intact in the photos."
                ],
                "confidence": 0.9,
                "recommended_max_bid": 12,
                "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": 0.88,
                "estimated_era": "unknown",
                "estimated_resale_high": 40,
                "estimated_resale_low": 15,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.99,
                "missing_information": [],
                "negative_evidence": [
                    "photo 6: interior stamped VIKI ORIGINAL, not COACH or Coach creed",
                    "photo 1,2,5: structured frame bag with top frame clasp, not a Coach turnlock or Coach catalog silhouette",
                    "photo 6: red fabric lining with zip compartment, not unlined glove-tanned suede interior of vintage Coach classics",
                    "photo 1-5: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone frame \/ security clasp closure (photo 2,6) and small handle rings and bottom feet (photo 3); not solid brass Coach turnlock geometry",
                    "leather_description": "navy smooth leather with slight sheen, structured panels (photo 1,3,5)",
                    "lining_description": "red fabric lining with center zip compartment (photo 6)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "thin edge stitching visible around panels (photo 1,5)",
                    "strap_construction": "single short top handle in matching navy leather attached with small metal rings, shows creasing\/wear (photo 4)",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: leather handbag with metal hardware, the population where misidentified Coach could hide, but no Coach identifier seen"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: frame-clasp construction, VIKI ORIGINAL interior stamp, red lined interior and handle attachment are inconsistent with any 1970s-1990s Coach classic; Condition: Very Good to Good; handle shows wear on one side (photo 4), minor interior wear per seller, structure intact"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.05,
                "vintage_probability": 0.85
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18138,
            "output_tokens": 881,
            "total_tokens": 19019,
            "estimated_cost_usd": 0.00937
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18689,
            "output_tokens": 1278,
            "total_tokens": 19967,
            "estimated_cost_usd": 0.00476
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}