Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.035,
    "vintage_probability": 0.34,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.71,
    "seller_misidentification_probability": 0.04,
    "confidence": 0.73,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 37.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Structured leather-look dome handbag with two handles and a full top zipper.",
        "photo 5: The bag appears to have leather or leather-like trim and visible stitched construction.",
        "photo 4: Seller-stated YKK zipper is consistent with general handbag production, but is not Coach-specific evidence.",
        "photo 1,2: leather handbag in British-Tan-like color with brass-tone hardware - general population where misidentified Coach hides",
        "photo 4: YKK zippers - YKK was used by Coach from 1990s, so not inconsistent alone"
    ],
    "negative_evidence": [
        "photo 3: Oversized ornate gold chain hardware is not characteristic of the restrained solid-brass hardware used on classic vintage Coach bags.",
        "photo 4: Visible zipper pulls and tassel construction show no legible Coach marking.",
        "photos 1-6: No Coach wordmark, horse-and-carriage, creed patch, hangtag, or other Coach identifier is visible.",
        "photos 1-6: Glossy smooth body, highly decorative hardware, and the dome silhouette do not closely match the documented classic vintage Coach catalog shapes.",
        "photo 2: Bottom construction and edge finishing appear more consistent with a generic fashion handbag than an unlined glove-tanned Coach classic.",
        "photo 1,5,6: dome zip-top silhouette with double fixed handles does not match any classic Coach catalog style",
        "photo 3: ornate twisted gold-tone chain-link handle connectors - not Coach solid-brass dogleash\/lobster, turnlock, or buckle geometry",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 4: brown YKK coil zippers with leather tassel pulls - not vintage Talon solid-brass Coach zippers",
        "seller text: interior zipper pocket has peeling - indicates bonded\/fabric lining failure, inconsistent with unlined suede-back vintage Coach glove-tanned classics"
    ],
    "missing_information": [
        "photo 1-6: Interior back wall and pocket area are not shown clearly enough to inspect for a creed patch or fabric label.",
        "photo 1-6: No close-up of any interior brand label, zipper stamp, or country-of-origin marking.",
        "photo 1-6: Strap attachment, lining condition, and interior peeling require clearer interior photographs.",
        "photo 1-6: Seller-stated dimensions are available, but no ruler or scale reference is shown.",
        "photo 1-6: interior views not shown - creed patch, lining material and Made-in line cannot be verified",
        "photo 1-6: no creed close-up in raking light to read stamp or serial",
        "photo 1-6: no COACH wordmark, horse-and-carriage, or hangtag visible - request both faces of any tags",
        "photo 3: ornate handle chain in close-up but no engraved brand marks legible - request hardware stamps"
    ],
    "authenticity_concerns": [
        "photos 1-6: No Coach identifiers are visible, while the decorative chain hardware and glossy construction are inconsistent with the strongest vintage Coach indicators.",
        "photos 3-4: The ornate chain and decorative zipper tassels could indicate a lookalike or unrelated fashion brand rather than Coach."
    ],
    "possible_model_reasoning": [
        "The structured dome shape and approximately 10 x 6 x 9 inch seller-stated dimensions do not strongly match a specific documented Coach model.",
        "The bag has a zip-top construction rather than a recognizable vintage Coach turnlock, dogleash, or classic flap configuration.",
        "Condition: Good based on visible surface marks and creasing; the interior and seller-reported zipper-pocket peeling are not sufficiently visible to grade fully.",
        "No Coach model fits: dome zip-top with chain-link handles and peeling lining is inconsistent with City Bag, Court, Station, Willis, Dinky or other classics which are flap-turnlock unlined glove-tanned bags",
        "Condition: Good; edge wear and scuffing on piping (photo 5,6), handle creasing (photo 1), seller reports interior peeling, interior not shown so lining failure extent unknown"
    ],
    "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": "photos 2-6: Gold-tone decorative chain links, zipper hardware, and leather zipper tassels are visible; no Coach engraving is legible.",
        "leather_description": "photos 1-6: Smooth, glossy brown leather or leather-like material with some surface creasing and light marks; exact material cannot be confirmed from photos.",
        "lining_description": "not_visible",
        "strap_construction": "photos 1, 5-6: Two fixed rolled or folded leather-look top handles with stitched edges; additional strap or handle attachment details are visible at the sides.",
        "stitching_description": "photos 1-6: Generally even machine stitching is visible around the handles, zipper, and body edges; some edge finishing appears coated or polished."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0058,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.04,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.05,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Structured leather-look dome handbag with two handles and a full top zipper.",
                    "photo 5: The bag appears to have leather or leather-like trim and visible stitched construction.",
                    "photo 4: Seller-stated YKK zipper is consistent with general handbag production, but is not Coach-specific evidence."
                ],
                "negative_evidence": [
                    "photo 3: Oversized ornate gold chain hardware is not characteristic of the restrained solid-brass hardware used on classic vintage Coach bags.",
                    "photo 4: Visible zipper pulls and tassel construction show no legible Coach marking.",
                    "photos 1-6: No Coach wordmark, horse-and-carriage, creed patch, hangtag, or other Coach identifier is visible.",
                    "photos 1-6: Glossy smooth body, highly decorative hardware, and the dome silhouette do not closely match the documented classic vintage Coach catalog shapes.",
                    "photo 2: Bottom construction and edge finishing appear more consistent with a generic fashion handbag than an unlined glove-tanned Coach classic."
                ],
                "missing_information": [
                    "photo 1-6: Interior back wall and pocket area are not shown clearly enough to inspect for a creed patch or fabric label.",
                    "photo 1-6: No close-up of any interior brand label, zipper stamp, or country-of-origin marking.",
                    "photo 1-6: Strap attachment, lining condition, and interior peeling require clearer interior photographs.",
                    "photo 1-6: Seller-stated dimensions are available, but no ruler or scale reference is shown."
                ],
                "authenticity_concerns": [
                    "photos 1-6: No Coach identifiers are visible, while the decorative chain hardware and glossy construction are inconsistent with the strongest vintage Coach indicators.",
                    "photos 3-4: The ornate chain and decorative zipper tassels could indicate a lookalike or unrelated fashion brand rather than Coach."
                ],
                "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": "photos 2-6: Gold-tone decorative chain links, zipper hardware, and leather zipper tassels are visible; no Coach engraving is legible.",
                    "leather_description": "photos 1-6: Smooth, glossy brown leather or leather-like material with some surface creasing and light marks; exact material cannot be confirmed from photos.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1, 5-6: Two fixed rolled or folded leather-look top handles with stitched edges; additional strap or handle attachment details are visible at the sides.",
                    "stitching_description": "photos 1-6: Generally even machine stitching is visible around the handles, zipper, and body edges; some edge finishing appears coated or polished."
                },
                "possible_model_reasoning": [
                    "The structured dome shape and approximately 10 x 6 x 9 inch seller-stated dimensions do not strongly match a specific documented Coach model.",
                    "The bag has a zip-top construction rather than a recognizable vintage Coach turnlock, dogleash, or classic flap configuration.",
                    "Condition: Good based on visible surface marks and creasing; the interior and seller-reported zipper-pocket peeling are not sufficiently visible to grade fully."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.68,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo 1-6: interior views not shown - creed patch, lining material and Made-in line cannot be verified",
                    "photo 1-6: no creed close-up in raking light to read stamp or serial",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, or hangtag visible - request both faces of any tags",
                    "photo 3: ornate handle chain in close-up but no engraved brand marks legible - request hardware stamps"
                ],
                "negative_evidence": [
                    "photo 1,5,6: dome zip-top silhouette with double fixed handles does not match any classic Coach catalog style",
                    "photo 3: ornate twisted gold-tone chain-link handle connectors - not Coach solid-brass dogleash\/lobster, turnlock, or buckle geometry",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 4: brown YKK coil zippers with leather tassel pulls - not vintage Talon solid-brass Coach zippers",
                    "seller text: interior zipper pocket has peeling - indicates bonded\/fabric lining failure, inconsistent with unlined suede-back vintage Coach glove-tanned classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone plated hardware; ornate twisted chain-link handle attachments (photo 3); brown YKK zippers with leather tassel pulls (photo 4)",
                    "leather_description": "smooth tan\/cognac leather with sheen, structured dome body; edge wear and scuffing at piping (photo 5,6)",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched straight stitching around panels and handle anchors, visible in photo 1,4",
                    "strap_construction": "double short top handles, stitched leather, attached via ornate gold-tone chain links to side tabs",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1,2: leather handbag in British-Tan-like color with brass-tone hardware - general population where misidentified Coach hides",
                    "photo 4: YKK zippers - YKK was used by Coach from 1990s, so not inconsistent alone"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: dome zip-top with chain-link handles and peeling lining is inconsistent with City Bag, Court, Station, Willis, Dinky or other classics which are flap-turnlock unlined glove-tanned bags",
                    "Condition: Good; edge wear and scuffing on piping (photo 5,6), handle creasing (photo 1), seller reports interior peeling, interior not shown so lining failure extent unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.5
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18159,
            "output_tokens": 906,
            "total_tokens": 19065,
            "estimated_cost_usd": 0.009438
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18711,
            "output_tokens": 1428,
            "total_tokens": 20139,
            "estimated_cost_usd": 0.004885
        }
    ]
}