Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.19,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.8,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.845,
    "recommended_max_bid": 9,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The bag is a colorblock studded satchel with a decorative clasp and highly glossy white\/navy material, unlike the documented classic Coach silhouettes.",
        "photo 5: Interior shows a synthetic-looking white fabric lining and a metal kisslock frame; no Coach creed patch or Coach wordmark is visible.",
        "photo 6: Hardware combines a silver-tone kisslock frame with gold-tone handle attachments, an inconsistent combination for a vintage Coach bag.",
        "photo 7: Exterior construction appears smooth, coated or synthetic rather than glove-tanned natural leather; the decorative studded trim and nonstandard hardware are lookalike cues.",
        "photo 1: Seller title identifies a generic colorblock studded satchel and seller brand is Unbranded, with no Coach-specific claim.",
        "photo 1, photo 2, photo 3: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible",
        "photo 1, photo 3: white\/navy colorblock with studded brogue overlay - silhouette and decoration not in Coach catalog",
        "photo 4, photo 5: kisslock ball-clasp frame closure, not Coach turnlock or Coach kisslock frame type",
        "photo 1, photo 2: smooth high-gloss coated material with sheen, not matte glove-tanned cowhide",
        "photo 5: white synthetic\/vinyl lining with zip pocket, not unlined suede-back glove-tanned interior",
        "photo 4, photo 5: mixed hardware tones - gold-tone handle rivets vs silver-tone kisslock frame"
    ],
    "missing_information": [
        "photo 5: A full, unobstructed view of every interior wall and pocket seam to confirm that no brand label or fabric tag is present.",
        "photo 2: Clear close-ups of the bottom, corners, side construction, and all hardware.",
        "photo 5: Close-up of the zipper pull and any interior labels or stamps.",
        "photo 5: interior shows no creed patch on back wall - confirm no stamped leather patch in any pocket",
        "photo 5: close-up of zipper pull brand stamp to confirm maker",
        "photo 4: top frame and kisslock maker marks if any"
    ],
    "authenticity_concerns": [
        "photo 5: The synthetic-looking lining and framed kisslock construction are inconsistent with common vintage Coach glove-tanned classics.",
        "photo 1: Studded decorative colorblocking and the large clasp do not match the listed vintage Coach catalog construction.",
        "photo 6: Mixed silver and gold hardware is a construction inconsistency for a vintage Coach-style bag.",
        "photos 1 and 5: No visible creed, serial\/style number, Coach wordmark, horse-and-carriage mark, or hangtag supports Coach manufacture."
    ],
    "possible_model_reasoning": [
        "photo 1: The silhouette is a generic structured top-handle satchel with a kisslock frame, not a close match to the listed classic Coach models.",
        "photos 1 and 5: No Coach identifier is visible, and the decorative studs, framed closure, synthetic-looking lining, and mixed hardware point to a modern non-Coach bag.",
        "Condition: Good; visible creasing and light marks on the white exterior (photos 1, 2, and 7), with interior and hardware wear visible in photo 5. The bag is not recommended as a Coach purchase.",
        "No Coach identifier visible in 6 photos despite front, back, side, top and interior views",
        "Kisslock frame + fixed top handles + studded colorblock overlay does not match City Bag, Willis, Court, Station, Dinky or other classics",
        "Construction - glossy coated body and synthetic lining - inconsistent with 1970s-1990s unlined glove-tanned Coach",
        "Condition: Good to Very Good for age; surface scuffs and frame tarnish visible (photo 4), no corner wear shown, lining intact (photo 5)"
    ],
    "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: Gold-tone oval handle attachments and decorative silver studs; photo 5: silver-tone metal kisslock frame and central ball clasp; photo 6: mixed gold and silver-tone hardware.",
        "leather_description": "photos 1, 2, and 7: Smooth glossy white and navy material with a coated or synthetic appearance; natural glove-tanned leather is not evident.",
        "lining_description": "photo 5: White synthetic-looking fabric lining with a zip pocket; no creed patch or brand label is visible.",
        "strap_construction": "photos 1, 2, and 6: Two fixed rolled or folded top handles attached with oval metal fittings; no Coach-style detachable strap is visible.",
        "stitching_description": "photos 1 and 7: Visible perimeter stitching appears generally even, with decorative studded trim; construction is insufficient to support Coach attribution."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0058,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.9,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The bag is a colorblock studded satchel with a decorative clasp and highly glossy white\/navy material, unlike the documented classic Coach silhouettes.",
                    "photo 5: Interior shows a synthetic-looking white fabric lining and a metal kisslock frame; no Coach creed patch or Coach wordmark is visible.",
                    "photo 6: Hardware combines a silver-tone kisslock frame with gold-tone handle attachments, an inconsistent combination for a vintage Coach bag.",
                    "photo 7: Exterior construction appears smooth, coated or synthetic rather than glove-tanned natural leather; the decorative studded trim and nonstandard hardware are lookalike cues.",
                    "photo 1: Seller title identifies a generic colorblock studded satchel and seller brand is Unbranded, with no Coach-specific claim."
                ],
                "missing_information": [
                    "photo 5: A full, unobstructed view of every interior wall and pocket seam to confirm that no brand label or fabric tag is present.",
                    "photo 2: Clear close-ups of the bottom, corners, side construction, and all hardware.",
                    "photo 5: Close-up of the zipper pull and any interior labels or stamps."
                ],
                "authenticity_concerns": [
                    "photo 5: The synthetic-looking lining and framed kisslock construction are inconsistent with common vintage Coach glove-tanned classics.",
                    "photo 1: Studded decorative colorblocking and the large clasp do not match the listed vintage Coach catalog construction.",
                    "photo 6: Mixed silver and gold hardware is a construction inconsistency for a vintage Coach-style bag.",
                    "photos 1 and 5: No visible creed, serial\/style number, Coach wordmark, horse-and-carriage mark, or hangtag supports 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: Gold-tone oval handle attachments and decorative silver studs; photo 5: silver-tone metal kisslock frame and central ball clasp; photo 6: mixed gold and silver-tone hardware.",
                    "leather_description": "photos 1, 2, and 7: Smooth glossy white and navy material with a coated or synthetic appearance; natural glove-tanned leather is not evident.",
                    "lining_description": "photo 5: White synthetic-looking fabric lining with a zip pocket; no creed patch or brand label is visible.",
                    "strap_construction": "photos 1, 2, and 6: Two fixed rolled or folded top handles attached with oval metal fittings; no Coach-style detachable strap is visible.",
                    "stitching_description": "photos 1 and 7: Visible perimeter stitching appears generally even, with decorative studded trim; construction is insufficient to support Coach attribution."
                },
                "possible_model_reasoning": [
                    "photo 1: The silhouette is a generic structured top-handle satchel with a kisslock frame, not a close match to the listed classic Coach models.",
                    "photos 1 and 5: No Coach identifier is visible, and the decorative studs, framed closure, synthetic-looking lining, and mixed hardware point to a modern non-Coach bag.",
                    "Condition: Good; visible creasing and light marks on the white exterior (photos 1, 2, and 7), with interior and hardware wear visible in photo 5. The bag is not recommended as a Coach purchase."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 25
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 8,
                "image_quality_score": 0.7,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 5: interior shows no creed patch on back wall - confirm no stamped leather patch in any pocket",
                    "photo 5: close-up of zipper pull brand stamp to confirm maker",
                    "photo 4: top frame and kisslock maker marks if any"
                ],
                "negative_evidence": [
                    "photo 1, photo 2, photo 3: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible",
                    "photo 1, photo 3: white\/navy colorblock with studded brogue overlay - silhouette and decoration not in Coach catalog",
                    "photo 4, photo 5: kisslock ball-clasp frame closure, not Coach turnlock or Coach kisslock frame type",
                    "photo 1, photo 2: smooth high-gloss coated material with sheen, not matte glove-tanned cowhide",
                    "photo 5: white synthetic\/vinyl lining with zip pocket, not unlined suede-back glove-tanned interior",
                    "photo 4, photo 5: mixed hardware tones - gold-tone handle rivets vs silver-tone kisslock frame"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone oval handle studs\/rivets; silver-tone kisslock ball frame with tarnish; mixed gold and silver tones",
                    "leather_description": "smooth high-gloss white and navy material, coated appearance with glare, not matte glove-tanned grain",
                    "lining_description": "white synthetic\/vinyl lining with interior zip pocket, shiny wrinkled finish",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "edge stitching along navy overlay and handles, even but not characteristic Coach weight",
                    "strap_construction": "two fixed short top handles in navy, rivet-attached to body, no detachable crossbody strap",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in 6 photos despite front, back, side, top and interior views",
                    "Kisslock frame + fixed top handles + studded colorblock overlay does not match City Bag, Willis, Court, Station, Dinky or other classics",
                    "Construction - glossy coated body and synthetic lining - inconsistent with 1970s-1990s unlined glove-tanned Coach",
                    "Condition: Good to Very Good for age; surface scuffs and frame tarnish visible (photo 4), no corner wear shown, lining intact (photo 5)"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.35
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28781,
            "output_tokens": 856,
            "total_tokens": 29637,
            "estimated_cost_usd": 0.013567
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30093,
            "output_tokens": 1317,
            "total_tokens": 31410,
            "estimated_cost_usd": 0.007072
        }
    ]
}