Vintage Coach Hunter

{
    "is_handbag_probability": 0.96,
    "coach_probability": 0.055,
    "vintage_probability": 0.385,
    "authenticity_confidence": 0.06,
    "image_quality_score": 0.685,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.715,
    "recommended_max_bid": 15,
    "estimated_resale_low": 20,
    "estimated_resale_high": 60,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a structured leather shoulder bag with substantial leather construction.",
        "photo 1: The bag has neat, generally even perimeter stitching and multiple leather strap attachments.",
        "photo 2: The leather appears substantial and naturally varied rather than obviously synthetic.",
        "photo 1-6: genuine leather shoulder satchel bag, the population where misidentified bags hide",
        "photo 1: tan leather tone similar to Coach British Tan"
    ],
    "negative_evidence": [
        "photo 1: No Coach wordmark, horse-and-carriage, creed patch, hangtag, or other Coach identifier is visible.",
        "photo 1: The bag uses paired buckle straps and bright silver-tone hardware rather than the brass turnlock construction typical of many vintage Coach classics.",
        "photo 1: The smooth glossy finish and highly decorative strap assembly are compatible with many generic leather satchels and do not establish Coach manufacture.",
        "photo 5: No readable Coach marking is visible on the shown exterior or strap hardware.",
        "photo 1: double buckle-strap flap closure, not Coach turnlock flap - no turnlock present",
        "photo 1,2,3: silver-tone buckles and dome rivets, not vintage Coach solid brass",
        "photo 1,2,3,5: satchel\/briefcase silhouette with riveted top handle and buckle straps does not match any Coach catalog style",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 4: side strap attachment with buckle, not Coach dogleash\/lobster or dowel construction"
    ],
    "missing_information": [
        "A straight-on photograph of the entire interior, including every interior wall and pocket.",
        "A close-up of any leather label, stamped mark, fabric tag, zipper pull, or hardware engraving.",
        "Clear photographs of the strap ends, underside, bottom corners, and all hardware.",
        "Seller-stated dimensions and confirmation of whether the bag has any removable or attached tag.",
        "photo 1-6: no interior view shown, creed patch cannot be checked",
        "photo 1-6: no creed close-up in raking light",
        "photo 1-6: no hangtag or wordmark close-up",
        "photo 4: lining type not visible",
        "seller-stated dimensions and weight not provided"
    ],
    "authenticity_concerns": [
        "The visible construction does not provide a Coach identifier and is readily consistent with an unbranded or lookalike leather bag.",
        "The silver-tone hardware and buckle-front design do not strongly match the classic solid-brass, turnlock-centered vintage Coach styles in the reference catalog."
    ],
    "possible_model_reasoning": [
        "No Coach model is assigned because no Coach identifier or distinctive catalog silhouette is visible, and the probability of Coach manufacture is low.",
        "The buckle-front satchel silhouette is generic and does not closely establish a listed Coach model.",
        "Condition: Good to Very Good based on visible surface scratches, creasing, and finish variation; interior, odor, mold, and functional hardware condition are unverified.",
        "No Coach model fits: double-buckle satchel with riveted top handle and silver hardware is inconsistent with City Bag, Willis, Court, Station, Stewardess, Duffle Sac and other classics which use brass turnlock and unlined glove-tanned construction",
        "No serial decode possible - no number visible",
        "Condition: Very Good to Good; leather intact with light scuffs and edge wear (photo 1, photo 6), hardware intact, interior and bottom corners not fully shown so capped"
    ],
    "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": "Bright silver-tone rectangular buckles, rivets, and strap hardware are visible in photos 1-5; no Coach engraving is legible.",
        "leather_description": "Smooth orange-brown leather with visible surface variation, creasing, and some glossy reflections; material appears leather-like, but exact tanning cannot be established.",
        "lining_description": "not_visible",
        "strap_construction": "Wide leather shoulder strap and multiple sewn\/riveted buckle straps are visible in photos 1-5; strap fold and full length are not shown.",
        "stitching_description": "Visible dark contrast stitching is mostly even and follows the leather panels and strap attachments; some close-up areas are obscured by glare."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0036,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.97,
                "coach_probability": 0.08,
                "vintage_probability": 0.42,
                "authenticity_confidence": 0.07,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a structured leather shoulder bag with substantial leather construction.",
                    "photo 1: The bag has neat, generally even perimeter stitching and multiple leather strap attachments.",
                    "photo 2: The leather appears substantial and naturally varied rather than obviously synthetic."
                ],
                "negative_evidence": [
                    "photo 1: No Coach wordmark, horse-and-carriage, creed patch, hangtag, or other Coach identifier is visible.",
                    "photo 1: The bag uses paired buckle straps and bright silver-tone hardware rather than the brass turnlock construction typical of many vintage Coach classics.",
                    "photo 1: The smooth glossy finish and highly decorative strap assembly are compatible with many generic leather satchels and do not establish Coach manufacture.",
                    "photo 5: No readable Coach marking is visible on the shown exterior or strap hardware."
                ],
                "missing_information": [
                    "A straight-on photograph of the entire interior, including every interior wall and pocket.",
                    "A close-up of any leather label, stamped mark, fabric tag, zipper pull, or hardware engraving.",
                    "Clear photographs of the strap ends, underside, bottom corners, and all hardware.",
                    "Seller-stated dimensions and confirmation of whether the bag has any removable or attached tag."
                ],
                "authenticity_concerns": [
                    "The visible construction does not provide a Coach identifier and is readily consistent with an unbranded or lookalike leather bag.",
                    "The silver-tone hardware and buckle-front design do not strongly match the classic solid-brass, turnlock-centered vintage Coach styles in the reference catalog."
                ],
                "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": "Bright silver-tone rectangular buckles, rivets, and strap hardware are visible in photos 1-5; no Coach engraving is legible.",
                    "leather_description": "Smooth orange-brown leather with visible surface variation, creasing, and some glossy reflections; material appears leather-like, but exact tanning cannot be established.",
                    "lining_description": "not_visible",
                    "strap_construction": "Wide leather shoulder strap and multiple sewn\/riveted buckle straps are visible in photos 1-5; strap fold and full length are not shown.",
                    "stitching_description": "Visible dark contrast stitching is mostly even and follows the leather panels and strap attachments; some close-up areas are obscured by glare."
                },
                "possible_model_reasoning": [
                    "No Coach model is assigned because no Coach identifier or distinctive catalog silhouette is visible, and the probability of Coach manufacture is low.",
                    "The buckle-front satchel silhouette is generic and does not closely establish a listed Coach model.",
                    "Condition: Good to Very Good based on visible surface scratches, creasing, and finish variation; interior, odor, mold, and functional hardware condition are unverified."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 15,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.03,
                "confidence": 0.65,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 60,
                "estimated_resale_low": 20,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "photo 1-6: no interior view shown, creed patch cannot be checked",
                    "photo 1-6: no creed close-up in raking light",
                    "photo 1-6: no hangtag or wordmark close-up",
                    "photo 4: lining type not visible",
                    "seller-stated dimensions and weight not provided"
                ],
                "negative_evidence": [
                    "photo 1: double buckle-strap flap closure, not Coach turnlock flap - no turnlock present",
                    "photo 1,2,3: silver-tone buckles and dome rivets, not vintage Coach solid brass",
                    "photo 1,2,3,5: satchel\/briefcase silhouette with riveted top handle and buckle straps does not match any Coach catalog style",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 4: side strap attachment with buckle, not Coach dogleash\/lobster or dowel construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone rectangular buckles on front straps and side strap, silver dome rivets on flap straps and top handle mounts; bright plated tone, not solid brass patina",
                    "leather_description": "smooth tan \/ British-tan-like full-grain leather with sheen, flap and body; surface scuffs and patina visible in photo 1",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "dark brown contrast stitching around perimeter and straps, even but contrasting - not tone-matched Coach classic stitching",
                    "strap_construction": "short riveted top handle on side\/top (photo 2, photo 3) plus long flat leather shoulder strap with buckle adjustment (photo 4)",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-6: genuine leather shoulder satchel bag, the population where misidentified bags hide",
                    "photo 1: tan leather tone similar to Coach British Tan"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: double-buckle satchel with riveted top handle and silver hardware is inconsistent with City Bag, Willis, Court, Station, Stewardess, Duffle Sac and other classics which use brass turnlock and unlined glove-tanned construction",
                    "No serial decode possible - no number visible",
                    "Condition: Very Good to Good; leather intact with light scuffs and edge wear (photo 1, photo 6), hardware intact, interior and bottom corners not fully shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.35
            }
        }
    ],
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            "output_tokens": 942,
            "total_tokens": 29711,
            "estimated_cost_usd": 0.013768
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30082,
            "output_tokens": 1294,
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}