Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.04,
    "vintage_probability": 0.425,
    "authenticity_confidence": 0.035,
    "image_quality_score": 0.755,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.785,
    "recommended_max_bid": 11,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 35,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a leather handbag with a long adjustable strap.",
        "photo 2: visible stamped metal snap reads as a patent or hardware marking, not a recognizable Coach creed or style number.",
        "photo 3: leather\/suede construction and brass-tone hardware are broadly compatible with older leather handbags, but are not specific to Coach.",
        "photo 4: solid-looking base feet and woven leather construction are visible.",
        "photo 3, photo 4: genuine leather with unlined interior and brass-tone hardware is the population where vintage Coach hides, but no Coach identifier present"
    ],
    "negative_evidence": [
        "photo 2: no rectangular Coach creed patch, COACH wordmark, country line, or recognizable Coach serial format is visible.",
        "photo 1: the bag has an extensive woven leather construction, not a clearly recognizable classic Coach glove-tanned silhouette.",
        "photo 5: the strap attachment uses generic-looking rings and a lobster-style clip rather than clearly identifiable Coach hardware.",
        "photo 6: hardware and construction do not show a Coach-specific identifier.",
        "seller states the bag is unbranded and only mentions a numbered stamping on the snap closure; this is weak evidence and the marking is not a Coach serial.",
        "photo 2, photo 3: no Coach creed patch visible; only patent-number snap, not No. serial",
        "photo 1-6: no COACH wordmark, horse-and-carriage, or leather hangtag visible",
        "photo 1, photo 3, photo 4: all-over woven intrecciato-style body, not vintage Coach glove-tanned smooth classic construction",
        "photo 2, photo 3: magnetic snap closure, no turnlock present",
        "photo 5, photo 6: antiqued swivel snap-hook strap hardware, not vintage Coach solid brass dogleash\/lobster geometry"
    ],
    "missing_information": [
        "photo request: full front, back, side, and top views to identify the closure and overall silhouette.",
        "photo request: all interior walls and pockets, including any sewn-in brand label or leather creed patch.",
        "photo request: close-up of every hardware marking and the snap closure, straight-on and in focus.",
        "photo request: full strap, buckle holes, stitching, and both attachment points.",
        "seller-stated country of manufacture, materials, approximate age, and any provenance.",
        "photo of full front and back of bag to confirm silhouette and scale",
        "interior emptied view showing any brand stamp, creed patch or fabric tag",
        "close-up of any Made In stamp or additional hardware marks"
    ],
    "authenticity_concerns": [
        "photo 2: the visible circular stamping appears to be a patent or hardware marking, not a Coach creed; it should not be treated as a Coach serial.",
        "photo 3: the interior is suede-like, but no Coach identifier is visible.",
        "photo 5: generic woven construction and strap hardware provide no evidence of Coach manufacture.",
        "photo 2: snap stamped UK PAT1519246 UK D973682 is patent hardware, not a Coach creed or Coach serial format"
    ],
    "possible_model_reasoning": [
        "The silhouette and woven leather construction do not provide a reliable match to the listed classic Coach models, and no Coach identifier is visible.",
        "The circular marking in photo 2 appears to be hardware\/patent text rather than a Coach No. serial; no date or style decode is possible.",
        "Condition: Good\/Fair boundary; substantial dryness, edge fraying, and wear are visible in photos 3, 5, and 6, while odor, hidden damage, and full interior condition remain unknown.",
        "No Coach model fits: woven body, magnetic snap with UK patent numbers, braided handles and detachable strap match generic woven slouch bag, not any catalog City Bag, Willis, Court, Station, Duffle or other classic",
        "Seller-typed numbered stamping is the patent snap in photo 2, not a Coach No. serial; per transcription rules observed serial remains not_visible",
        "Condition: Very Good; leather supple with light wear, base feet intact (photo 4), no tears visible, interior not fully shown so odor\/mold unknown"
    ],
    "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 2: brass-tone circular snap\/hardware marked with patent-style text; photos 5-6 show darkened brass-tone rings and lobster-style strap clips.",
        "leather_description": "photos 1-6: brown woven leather with braided\/woven handles and visible wear, scuffing, dryness, and fraying at some edges.",
        "lining_description": "photo 3: suede-like leather interior is visible; no fabric lining or brand label is visible.",
        "strap_construction": "photos 1, 5-6: long narrow leather strap with woven or braided attachment details and metal rings\/clips; some edge wear is visible.",
        "stitching_description": "photos 2-6: visible stitching is generally regular, with frayed and worn leather around portions of the opening and strap attachments."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0041,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.06,
                "vintage_probability": 0.55,
                "authenticity_confidence": 0.04,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.07,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a leather handbag with a long adjustable strap.",
                    "photo 2: visible stamped metal snap reads as a patent or hardware marking, not a recognizable Coach creed or style number.",
                    "photo 3: leather\/suede construction and brass-tone hardware are broadly compatible with older leather handbags, but are not specific to Coach.",
                    "photo 4: solid-looking base feet and woven leather construction are visible."
                ],
                "negative_evidence": [
                    "photo 2: no rectangular Coach creed patch, COACH wordmark, country line, or recognizable Coach serial format is visible.",
                    "photo 1: the bag has an extensive woven leather construction, not a clearly recognizable classic Coach glove-tanned silhouette.",
                    "photo 5: the strap attachment uses generic-looking rings and a lobster-style clip rather than clearly identifiable Coach hardware.",
                    "photo 6: hardware and construction do not show a Coach-specific identifier.",
                    "seller states the bag is unbranded and only mentions a numbered stamping on the snap closure; this is weak evidence and the marking is not a Coach serial."
                ],
                "missing_information": [
                    "photo request: full front, back, side, and top views to identify the closure and overall silhouette.",
                    "photo request: all interior walls and pockets, including any sewn-in brand label or leather creed patch.",
                    "photo request: close-up of every hardware marking and the snap closure, straight-on and in focus.",
                    "photo request: full strap, buckle holes, stitching, and both attachment points.",
                    "seller-stated country of manufacture, materials, approximate age, and any provenance."
                ],
                "authenticity_concerns": [
                    "photo 2: the visible circular stamping appears to be a patent or hardware marking, not a Coach creed; it should not be treated as a Coach serial.",
                    "photo 3: the interior is suede-like, but no Coach identifier is visible.",
                    "photo 5: generic woven construction and strap hardware provide no evidence of 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 2: brass-tone circular snap\/hardware marked with patent-style text; photos 5-6 show darkened brass-tone rings and lobster-style strap clips.",
                    "leather_description": "photos 1-6: brown woven leather with braided\/woven handles and visible wear, scuffing, dryness, and fraying at some edges.",
                    "lining_description": "photo 3: suede-like leather interior is visible; no fabric lining or brand label is visible.",
                    "strap_construction": "photos 1, 5-6: long narrow leather strap with woven or braided attachment details and metal rings\/clips; some edge wear is visible.",
                    "stitching_description": "photos 2-6: visible stitching is generally regular, with frayed and worn leather around portions of the opening and strap attachments."
                },
                "possible_model_reasoning": [
                    "The silhouette and woven leather construction do not provide a reliable match to the listed classic Coach models, and no Coach identifier is visible.",
                    "The circular marking in photo 2 appears to be hardware\/patent text rather than a Coach No. serial; no date or style decode is possible.",
                    "Condition: Good\/Fair boundary; substantial dryness, edge fraying, and wear are visible in photos 3, 5, and 6, while odor, hidden damage, and full interior condition remain unknown."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 10,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 2: snap stamped UK PAT1519246 UK D973682 is patent hardware, not a Coach creed or Coach serial format"
                ],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.75,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of full front and back of bag to confirm silhouette and scale",
                    "interior emptied view showing any brand stamp, creed patch or fabric tag",
                    "close-up of any Made In stamp or additional hardware marks"
                ],
                "negative_evidence": [
                    "photo 2, photo 3: no Coach creed patch visible; only patent-number snap, not No. serial",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, or leather hangtag visible",
                    "photo 1, photo 3, photo 4: all-over woven intrecciato-style body, not vintage Coach glove-tanned smooth classic construction",
                    "photo 2, photo 3: magnetic snap closure, no turnlock present",
                    "photo 5, photo 6: antiqued swivel snap-hook strap hardware, not vintage Coach solid brass dogleash\/lobster geometry"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone magnetic snaps and base feet; front snap stamped UK PAT1519246 UK D973682; antiqued swivel snap-hooks for detachable strap",
                    "leather_description": "tan\/cognac woven strip leather body with smooth leather base panel and trim; slouchy hand-woven appearance",
                    "lining_description": "unlined - raw suede side of woven strips visible in photo 3, no fabric lining",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched stitching around snap tabs and base perimeter, visible in photo 2 and photo 4",
                    "strap_construction": "two short braided rolled top handles plus detachable flat adjustable crossbody strap on swivel snap-hooks",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 3, photo 4: genuine leather with unlined interior and brass-tone hardware is the population where vintage Coach hides, but no Coach identifier present"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: woven body, magnetic snap with UK patent numbers, braided handles and detachable strap match generic woven slouch bag, not any catalog City Bag, Willis, Court, Station, Duffle or other classic",
                    "Seller-typed numbered stamping is the patent snap in photo 2, not a Coach No. serial; per transcription rules observed serial remains not_visible",
                    "Condition: Very Good; leather supple with light wear, base feet intact (photo 4), no tears visible, interior not fully shown so odor\/mold unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18122,
            "output_tokens": 993,
            "total_tokens": 19115,
            "estimated_cost_usd": 0.009632
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18675,
            "output_tokens": 1306,
            "total_tokens": 19981,
            "estimated_cost_usd": 0.00478
        }
    ]
}