Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.03,
    "vintage_probability": 0.635,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.63,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.74,
    "recommended_max_bid": 11,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a leather shoulder handbag with a woven leather exterior and a short shoulder strap.",
        "photo 2: Metal zipper is visible; the seller states it is a Conmar zipper, but the brand marking is not readable in the provided photos.",
        "photo 1: Dark, worn leather and construction suggest an older or vintage-style bag."
    ],
    "negative_evidence": [
        "photo 1: No visible COACH wordmark, horse-and-carriage, leather hangtag, creed patch, or other Coach branding.",
        "photo 1: The all-over woven leather construction and flapless zip-top silhouette do not closely match the documented classic Coach models.",
        "photo 1: Strap attachment and decorative center strip appear generic rather than characteristic of a recognizable Coach design.",
        "photo 2: Interior view does not show a Coach creed or serial\/style-number patch.",
        "photo 1-2: body made of small woven\/laced leather strips - not Coach glove-tanned cowhide construction",
        "photo 1-2: no creed patch, no COACH wordmark, no horse-and-carriage visible",
        "photo 1-2: no turnlock; closure appears to be snap (photo 2) plus top zip under flap",
        "photo 1-2: no leather hangtag, no brass turnlock\/dogleash hardware characteristic of vintage Coach",
        "photo 2: no unlined suede-back glove-tanned interior visible; interior not shown"
    ],
    "missing_information": [
        "Straight-on photos of the complete interior, including every pocket and seam, to check for a hidden maker label or creed.",
        "Close-up photos of the zipper pull and zipper tape to verify the claimed Conmar marking.",
        "Photos of the strap attachment points, bottom, side gussets, and all hardware.",
        "Seller-stated dimensions are approximate; a ruler photo would better establish scale.",
        "photo of interior lining and any interior leather patch or labels - no creed shown (photos 1-2)",
        "close-up of zipper pull and Conmar marking claimed by seller - not legible in photo 2",
        "close-up of hardware, snap, strap rivets and edges",
        "bottom, side and scale views"
    ],
    "authenticity_concerns": [
        "No Coach identifiers are visible, so the bag cannot be supported as Coach from these photos.",
        "The generic woven construction could be from many vintage leather-goods makers; silhouette alone is insufficient for Coach attribution."
    ],
    "possible_model_reasoning": [
        "The rectangular woven leather shoulder-bag shape does not correspond clearly to a listed vintage Coach model, and no Coach style number is visible.",
        "The seller's claimed Conmar zipper may support an older construction date if verified, but it is not readable in the photos and does not identify Coach.",
        "Condition appears Good: noticeable surface wear, creasing, edge abrasion, and worn woven leather are visible in photo 1; the interior and strap underside are not fully shown.",
        "With no Coach model identification, a generic vintage woven leather bag is the appropriate valuation category.",
        "No Coach identifiers visible in either photo to decode for era or style; woven-strip silhouette does not match any Classic glove-tanned catalog style (City Bag 9790, Willis 9927, Court 9870, etc.)",
        "Seller Conmar zipper claim (1930s-1960s) not verified in photos and does not point to Coach, whose handbags with creeds start c.1975",
        "Condition: Good to Very Good for age based on photos - surface wear\/patina on woven strips (photos 1-2), no tears or broken hardware visible, but interior, bottom corners and strap fold not 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": "photo 1: Small metal strap hardware and a front-bottom snap or rivet are visible; no Coach engraving is legible. photo 2: A metal zipper is visible.",
        "leather_description": "photo 1: Dark brown-black leather strips woven into a rectangular basket-weave surface, with visible creasing, edge wear, and surface scuffs.",
        "lining_description": "not_visible - interior not shown",
        "strap_construction": "photo 1: Narrow leather shoulder strap with decorative woven or cutwork detailing and metal attachment hardware; strap appears approximately short shoulder length per the listing.",
        "stitching_description": "photo 1: Visible perimeter construction is generally regular, though the woven strips and edges show wear; detailed internal stitching is not visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0037,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.72,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.76,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a leather shoulder handbag with a woven leather exterior and a short shoulder strap.",
                    "photo 2: Metal zipper is visible; the seller states it is a Conmar zipper, but the brand marking is not readable in the provided photos.",
                    "photo 1: Dark, worn leather and construction suggest an older or vintage-style bag."
                ],
                "negative_evidence": [
                    "photo 1: No visible COACH wordmark, horse-and-carriage, leather hangtag, creed patch, or other Coach branding.",
                    "photo 1: The all-over woven leather construction and flapless zip-top silhouette do not closely match the documented classic Coach models.",
                    "photo 1: Strap attachment and decorative center strip appear generic rather than characteristic of a recognizable Coach design.",
                    "photo 2: Interior view does not show a Coach creed or serial\/style-number patch."
                ],
                "missing_information": [
                    "Straight-on photos of the complete interior, including every pocket and seam, to check for a hidden maker label or creed.",
                    "Close-up photos of the zipper pull and zipper tape to verify the claimed Conmar marking.",
                    "Photos of the strap attachment points, bottom, side gussets, and all hardware.",
                    "Seller-stated dimensions are approximate; a ruler photo would better establish scale."
                ],
                "authenticity_concerns": [
                    "No Coach identifiers are visible, so the bag cannot be supported as Coach from these photos.",
                    "The generic woven construction could be from many vintage leather-goods makers; silhouette alone is insufficient for Coach attribution."
                ],
                "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: Small metal strap hardware and a front-bottom snap or rivet are visible; no Coach engraving is legible. photo 2: A metal zipper is visible.",
                    "leather_description": "photo 1: Dark brown-black leather strips woven into a rectangular basket-weave surface, with visible creasing, edge wear, and surface scuffs.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: Narrow leather shoulder strap with decorative woven or cutwork detailing and metal attachment hardware; strap appears approximately short shoulder length per the listing.",
                    "stitching_description": "photo 1: Visible perimeter construction is generally regular, though the woven strips and edges show wear; detailed internal stitching is not visible."
                },
                "possible_model_reasoning": [
                    "The rectangular woven leather shoulder-bag shape does not correspond clearly to a listed vintage Coach model, and no Coach style number is visible.",
                    "The seller's claimed Conmar zipper may support an older construction date if verified, but it is not readable in the photos and does not identify Coach.",
                    "Condition appears Good: noticeable surface wear, creasing, edge abrasion, and worn woven leather are visible in photo 1; the interior and strap underside are not fully shown.",
                    "With no Coach model identification, a generic vintage woven leather bag is the appropriate valuation category."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 12,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.7,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.5,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo of interior lining and any interior leather patch or labels - no creed shown (photos 1-2)",
                    "close-up of zipper pull and Conmar marking claimed by seller - not legible in photo 2",
                    "close-up of hardware, snap, strap rivets and edges",
                    "bottom, side and scale views"
                ],
                "negative_evidence": [
                    "photo 1-2: body made of small woven\/laced leather strips - not Coach glove-tanned cowhide construction",
                    "photo 1-2: no creed patch, no COACH wordmark, no horse-and-carriage visible",
                    "photo 1-2: no turnlock; closure appears to be snap (photo 2) plus top zip under flap",
                    "photo 1-2: no leather hangtag, no brass turnlock\/dogleash hardware characteristic of vintage Coach",
                    "photo 2: no unlined suede-back glove-tanned interior visible; interior not shown"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone snap visible on front in photo 2; top zipper under flap in photo 2, brand not legible in photos; strap rivets silver-tone; no solid brass turnlock visible",
                    "leather_description": "dark (black\/grey) woven\/laced narrow leather strips forming body, flap and strap; worn patina with lighter rubbing; not smooth glove-tanned cowhide",
                    "lining_description": "not_visible - interior not shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible - construction is laced\/woven, no stitching legible",
                    "strap_construction": "single narrow shoulder strap in same woven leather with riveted attachment, seller states 7.5 inch strap length",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifiers visible in either photo to decode for era or style; woven-strip silhouette does not match any Classic glove-tanned catalog style (City Bag 9790, Willis 9927, Court 9870, etc.)",
                    "Seller Conmar zipper claim (1930s-1960s) not verified in photos and does not point to Coach, whose handbags with creeds start c.1975",
                    "Condition: Good to Very Good for age based on photos - surface wear\/patina on woven strips (photos 1-2), no tears or broken hardware visible, but interior, bottom corners and strap fold not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.55
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16122,
            "output_tokens": 813,
            "total_tokens": 16935,
            "estimated_cost_usd": 0.0084
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 16494,
            "output_tokens": 1489,
            "total_tokens": 17983,
            "estimated_cost_usd": 0.00449
        }
    ]
}