Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.02,
    "vintage_probability": 0.56,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.745,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.86,
    "recommended_max_bid": 8,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: handbag is made of ribbed fabric rather than Coach's characteristic leather or documented signature canvas.",
        "photo 4: ornate gold-tone frame clasp is a decorative kisslock-style frame, not a recognizable vintage Coach turnlock.",
        "photos 4-6: no Coach wordmark, horse-and-carriage, creed patch, serial\/style number, or recognizable Coach hardware is visible.",
        "photos 5-6: interior uses shiny synthetic-looking lining and includes a matching attached coin purse, construction more typical of a generic vintage evening bag than a classic Coach leather handbag.",
        "photo 1: visible edge wear and fabric abrasion are consistent with the seller's description but provide no brand evidence.",
        "photo 1, photo 2, photo 3: body is navy blue ribbed fabric, not glove-tanned cowhide",
        "photo 4: closure is gold-tone metal frame clasp with scalloped top, not Coach turnlock geometry",
        "photo 5, photo 6: dark satin lining with attached kisslock coin purse, not unlined suede interior of vintage Coach classics",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 4: hardware is tarnished plated gold-tone, not solid brass vintage Coach hardware"
    ],
    "missing_information": [
        "photo 1-6: no maker label or brand tag is shown; request clear photos of every interior label, pocket, and seam.",
        "photo 1-6: request full front, back, bottom, side, and strap views if evaluating the bag beyond brand identification.",
        "photo 4: request a close-up of any markings on the frame clasp or hardware.",
        "No Coach creed, wordmark, or hangtag visible in any photo - none expected given construction",
        "No exterior front clasp close-up showing maker marks",
        "No fabric content or maker label shown if present"
    ],
    "authenticity_concerns": [
        "photo 4: the large decorative gold-tone frame clasp is not a typical Coach vintage closure and suggests a generic or lookalike evening-bag construction.",
        "photos 5-6: synthetic-looking lining and fabric construction provide no support for Coach manufacture."
    ],
    "possible_model_reasoning": [
        "photos 1-6: silhouette and frame closure fit a generic vintage fabric kisslock or evening handbag, not a Coach catalog model.",
        "photo 4: the frame appears decorative and gold-tone rather than the elegant solid-brass turnlock hardware associated with many vintage Coach classics.",
        "Condition: Good; visible edge abrasion, hardware wear, interior dust\/marks, and some fabric wear. Strap appears present, but full strap condition is not shown.",
        "No Coach model fits: fabric frame-clasp purse with satin lining and kisslock coin purse does not match any Classic glove-tanned catalog style (City, Willis, Court, Dinky, etc.)",
        "Era reasoning: construction and materials are inconsistent with 1970s-1990s Coach glove-tanned era; style suggests generic vintage fabric evening \/ day bag, non-Coach",
        "Condition: Good; edge wear and corner rubbing (photo 1, photo 3), tarnished hardware (photo 4), soiled satin lining with lint (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": "photos 4-6: ornate worn gold-tone metal frame clasp with multiple rounded raised sections; no Coach engraving visible.",
        "leather_description": "photos 1-3: navy blue ribbed fabric exterior; leather is not visible.",
        "lining_description": "photos 4-6: dark shiny synthetic-looking fabric lining with attached matching coin purse; visible dust or wear marks.",
        "strap_construction": "photos 1-3: narrow fabric shoulder strap attached near the upper sides; construction visible only partially.",
        "stitching_description": "photos 1-3 and 6: fabric-covered edges with visible wear and some fraying or abrasion; stitching details are limited."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0051,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.72,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: handbag is made of ribbed fabric rather than Coach's characteristic leather or documented signature canvas.",
                    "photo 4: ornate gold-tone frame clasp is a decorative kisslock-style frame, not a recognizable vintage Coach turnlock.",
                    "photos 4-6: no Coach wordmark, horse-and-carriage, creed patch, serial\/style number, or recognizable Coach hardware is visible.",
                    "photos 5-6: interior uses shiny synthetic-looking lining and includes a matching attached coin purse, construction more typical of a generic vintage evening bag than a classic Coach leather handbag.",
                    "photo 1: visible edge wear and fabric abrasion are consistent with the seller's description but provide no brand evidence."
                ],
                "missing_information": [
                    "photo 1-6: no maker label or brand tag is shown; request clear photos of every interior label, pocket, and seam.",
                    "photo 1-6: request full front, back, bottom, side, and strap views if evaluating the bag beyond brand identification.",
                    "photo 4: request a close-up of any markings on the frame clasp or hardware."
                ],
                "authenticity_concerns": [
                    "photo 4: the large decorative gold-tone frame clasp is not a typical Coach vintage closure and suggests a generic or lookalike evening-bag construction.",
                    "photos 5-6: synthetic-looking lining and fabric construction provide no support for 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": "photos 4-6: ornate worn gold-tone metal frame clasp with multiple rounded raised sections; no Coach engraving visible.",
                    "leather_description": "photos 1-3: navy blue ribbed fabric exterior; leather is not visible.",
                    "lining_description": "photos 4-6: dark shiny synthetic-looking fabric lining with attached matching coin purse; visible dust or wear marks.",
                    "strap_construction": "photos 1-3: narrow fabric shoulder strap attached near the upper sides; construction visible only partially.",
                    "stitching_description": "photos 1-3 and 6: fabric-covered edges with visible wear and some fraying or abrasion; stitching details are limited."
                },
                "possible_model_reasoning": [
                    "photos 1-6: silhouette and frame closure fit a generic vintage fabric kisslock or evening handbag, not a Coach catalog model.",
                    "photo 4: the frame appears decorative and gold-tone rather than the elegant solid-brass turnlock hardware associated with many vintage Coach classics.",
                    "Condition: Good; visible edge abrasion, hardware wear, interior dust\/marks, and some fabric wear. Strap appears present, but full strap condition is not shown."
                ],
                "confidence": 0.87,
                "recommended_max_bid": 8,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "No Coach creed, wordmark, or hangtag visible in any photo - none expected given construction",
                    "No exterior front clasp close-up showing maker marks",
                    "No fabric content or maker label shown if present"
                ],
                "negative_evidence": [
                    "photo 1, photo 2, photo 3: body is navy blue ribbed fabric, not glove-tanned cowhide",
                    "photo 4: closure is gold-tone metal frame clasp with scalloped top, not Coach turnlock geometry",
                    "photo 5, photo 6: dark satin lining with attached kisslock coin purse, not unlined suede interior of vintage Coach classics",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 4: hardware is tarnished plated gold-tone, not solid brass vintage Coach hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone metal frame clasp with scalloped \/ ribbed top bar, tarnished with dark spots (photo 4); small brass-tone kisslock on interior coin purse (photo 5)",
                    "leather_description": "not leather - navy blue fine ribbed fabric \/ grosgrain-type textile with edge wear and white rubbing at corners (photo 1, photo 3)",
                    "lining_description": "dark navy\/black satin lining, loose with dust\/lint visible, interior coin purse in same satin (photo 5, photo 6)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible in detail; edge piping on fabric body, strap edge stitching visible in photo 4 but not close enough to assess",
                    "strap_construction": "thin navy fabric shoulder strap, attached at sides (photo 2, photo 4)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: fabric frame-clasp purse with satin lining and kisslock coin purse does not match any Classic glove-tanned catalog style (City, Willis, Court, Dinky, etc.)",
                    "Era reasoning: construction and materials are inconsistent with 1970s-1990s Coach glove-tanned era; style suggests generic vintage fabric evening \/ day bag, non-Coach",
                    "Condition: Good; edge wear and corner rubbing (photo 1, photo 3), tarnished hardware (photo 4), soiled satin lining with lint (photo 5)"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.4
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18112,
            "output_tokens": 761,
            "total_tokens": 18873,
            "estimated_cost_usd": 0.009071
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18666,
            "output_tokens": 1329,
            "total_tokens": 19995,
            "estimated_cost_usd": 0.004796
        }
    ]
}