Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.025,
    "vintage_probability": 0.425,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.715,
    "seller_misidentification_probability": 0.03,
    "confidence": 0.79,
    "recommended_max_bid": 9,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a shoulder handbag with a flap, long strap, and multiple compartments.",
        "photo 1: Exterior appears to be textured leather or exotic-style leather in a burgundy-brown color.",
        "photo 5: Metal strap attachments and hardware are visible, but no Coach-specific branding is legible."
    ],
    "negative_evidence": [
        "photo 1: No visible COACH wordmark, horse-and-carriage mark, or recognizable Coach hangtag.",
        "photo 2: Closure appears to be a generic snap rather than a Coach-style vintage turnlock.",
        "photo 3: Interior is fully fabric-lined with shiny purple synthetic material, unlike many classic unlined glove-tanned Coach bags.",
        "photo 5: Hardware and construction appear generic and do not show distinctive vintage Coach construction cues.",
        "photo 3: Interior has visible staining and discoloration, consistent with the seller's statement about spots.",
        "photo 1: exterior is segmented eel skin in brown-wine, not Coach glove-tanned cowhide",
        "photo 2: closure is round snap button, not Coach brass turnlock geometry",
        "photo 3, photo 5, photo 6: fully lined with purple satin-like synthetic fabric, not unlined suede-back glove-tanned interior of vintage classics",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 5, photo 6: zippers with dark fabric tape and generic pulls, no Talon\/YKK brass vintage cues"
    ],
    "missing_information": [
        "A straight-on photo of every interior wall and pocket to confirm whether any creed patch or fabric brand tag is present.",
        "Close-up photos of all hardware, zipper pulls, strap attachments, and any leather tag.",
        "Bottom, side, and full strap photos for construction and condition assessment.",
        "Seller-stated dimensions and a close-up of the leather texture to help distinguish eel skin from embossed or synthetic material.",
        "photo of any maker label, creed patch or interior brand stamp - none visible in photos 1-6",
        "close-up of hardware stamps, zipper pull brand",
        "exterior bottom and corner close-ups to assess wear"
    ],
    "authenticity_concerns": [
        "The bag lacks any visible Coach identifier and has generic, fabric-lined construction; it is more consistent with an unbranded eel-leather purse than a Coach bag.",
        "The shiny synthetic lining and generic snap closure do not align strongly with a classic vintage Coach silhouette."
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the bag has no visible creed, serial, wordmark, or Coach-specific closure.",
        "The flap-and-compartment design is generic and can occur across many unbranded vintage leather handbags.",
        "Condition: Good to Fair; visible interior staining\/discoloration and worn or wrinkled lining are shown in photos 3-6, while bottom corners and full strap condition are not fully documented.",
        "No Coach model fits: eel skin, snap closure, fabric lining and absence of creed\/turnlock\/brass are inconsistent with City Bag, Willis, Court, Station, Dinky and other 1970s-1990s classics",
        "Condition: Good; exterior shows wear consistent with age but interior has spots\/staining along bottom seam noted by seller and visible in photo 3 and photo 4"
    ],
    "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": "Small gold-tone strap hardware and snap closures are visible in photos 1, 2, and 5; no Coach engraving is legible.",
        "leather_description": "Dark burgundy-brown, vertically textured leather or eel-style leather is visible on the exterior in photos 1 and 2; exact material cannot be confirmed from photos.",
        "lining_description": "Shiny purple\/magenta synthetic fabric lining with multiple compartments and zippered sections is visible in photos 3-6; staining and discoloration are present.",
        "strap_construction": "Long adjustable-looking shoulder strap attached with small metal clips or rings, visible in photos 1 and 5; full adjustment and attachment details are not shown.",
        "stitching_description": "Visible perimeter and panel stitching appears generally even, though close-up stitch quality is limited by the image resolution."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0014,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.35,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a shoulder handbag with a flap, long strap, and multiple compartments.",
                    "photo 1: Exterior appears to be textured leather or exotic-style leather in a burgundy-brown color.",
                    "photo 5: Metal strap attachments and hardware are visible, but no Coach-specific branding is legible."
                ],
                "negative_evidence": [
                    "photo 1: No visible COACH wordmark, horse-and-carriage mark, or recognizable Coach hangtag.",
                    "photo 2: Closure appears to be a generic snap rather than a Coach-style vintage turnlock.",
                    "photo 3: Interior is fully fabric-lined with shiny purple synthetic material, unlike many classic unlined glove-tanned Coach bags.",
                    "photo 5: Hardware and construction appear generic and do not show distinctive vintage Coach construction cues.",
                    "photo 3: Interior has visible staining and discoloration, consistent with the seller's statement about spots."
                ],
                "missing_information": [
                    "A straight-on photo of every interior wall and pocket to confirm whether any creed patch or fabric brand tag is present.",
                    "Close-up photos of all hardware, zipper pulls, strap attachments, and any leather tag.",
                    "Bottom, side, and full strap photos for construction and condition assessment.",
                    "Seller-stated dimensions and a close-up of the leather texture to help distinguish eel skin from embossed or synthetic material."
                ],
                "authenticity_concerns": [
                    "The bag lacks any visible Coach identifier and has generic, fabric-lined construction; it is more consistent with an unbranded eel-leather purse than a Coach bag.",
                    "The shiny synthetic lining and generic snap closure do not align strongly with a classic vintage Coach silhouette."
                ],
                "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": "Small gold-tone strap hardware and snap closures are visible in photos 1, 2, and 5; no Coach engraving is legible.",
                    "leather_description": "Dark burgundy-brown, vertically textured leather or eel-style leather is visible on the exterior in photos 1 and 2; exact material cannot be confirmed from photos.",
                    "lining_description": "Shiny purple\/magenta synthetic fabric lining with multiple compartments and zippered sections is visible in photos 3-6; staining and discoloration are present.",
                    "strap_construction": "Long adjustable-looking shoulder strap attached with small metal clips or rings, visible in photos 1 and 5; full adjustment and attachment details are not shown.",
                    "stitching_description": "Visible perimeter and panel stitching appears generally even, though close-up stitch quality is limited by the image resolution."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the bag has no visible creed, serial, wordmark, or Coach-specific closure.",
                    "The flap-and-compartment design is generic and can occur across many unbranded vintage leather handbags.",
                    "Condition: Good to Fair; visible interior staining\/discoloration and worn or wrinkled lining are shown in photos 3-6, while bottom corners and full strap condition are not fully documented."
                ],
                "confidence": 0.78,
                "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": 0.03,
                "coach_probability": 0.02,
                "confidence": 0.8,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of any maker label, creed patch or interior brand stamp - none visible in photos 1-6",
                    "close-up of hardware stamps, zipper pull brand",
                    "exterior bottom and corner close-ups to assess wear"
                ],
                "negative_evidence": [
                    "photo 1: exterior is segmented eel skin in brown-wine, not Coach glove-tanned cowhide",
                    "photo 2: closure is round snap button, not Coach brass turnlock geometry",
                    "photo 3, photo 5, photo 6: fully lined with purple satin-like synthetic fabric, not unlined suede-back glove-tanned interior of vintage classics",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 5, photo 6: zippers with dark fabric tape and generic pulls, no Talon\/YKK brass vintage cues"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone snap button on flap and body (photo 2), small gold-tone side clasps for strap; no turnlock, no engraved COACH visible",
                    "leather_description": "burgundy \/ brown-wine eel skin with narrow vertical panels and glossy finish (photo 1, photo 2); not glove-tanned cowhide",
                    "lining_description": "purple satin-like synthetic fabric lining throughout with zip pocket (photo 3, photo 5, photo 6); discolored spots along bottom seam (photo 3, photo 4)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight edge stitching around flap border, tone-matched; no detailed stitch close-up visible",
                    "strap_construction": "thin fixed-length shoulder strap in same eel leather, attached with rivets and small gold-tone hardware (photo 1, photo 2)",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: eel skin, snap closure, fabric lining and absence of creed\/turnlock\/brass are inconsistent with City Bag, Willis, Court, Station, Dinky and other 1970s-1990s classics",
                    "Condition: Good; exterior shows wear consistent with age but interior has spots\/staining along bottom seam noted by seller and visible in photo 3 and photo 4"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.5
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17741,
            "output_tokens": 940,
            "total_tokens": 18681,
            "estimated_cost_usd": 0.009352
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18076,
            "output_tokens": 1362,
            "total_tokens": 19438,
            "estimated_cost_usd": 0.004705
        }
    ]
}