Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.02,
    "vintage_probability": 0.685,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.69,
    "seller_misidentification_probability": 0.045,
    "confidence": 0.83,
    "recommended_max_bid": 8,
    "estimated_resale_low": 6.5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a handbag-sized shoulder bag with a structured rectangular silhouette.",
        "photo 2: the bag has a metal kiss-lock frame and chain shoulder strap, both compatible with vintage evening-bag construction.",
        "listing text: seller states it is a 1970s Jacobson's bag made in Hong Kong, but this is not independently verified by the photos."
    ],
    "negative_evidence": [
        "photo 1: the exterior is densely covered in navy macram\u00e9\/textile material rather than Coach's characteristic leather or recognizable Coach signature canvas.",
        "photo 2: no COACH wordmark, horse-and-carriage emblem, or other visible Coach branding.",
        "photo 3: the chain and frame hardware show no visible Coach engraving.",
        "photo 5: no leather hangtag or other Coach-specific identifier is visible.",
        "listing text: seller identifies the bag as Jacobson's and made in Hong Kong, not Coach.",
        "photo 2, photo 4: navy blue macrame \/ crochet woven textile body, not glove-tanned cowhide",
        "photo 1, photo 2, photo 5: kisslock \/ frame closure with rectangular clasp, no turnlock present",
        "photo 1, photo 3, photo 6: thin gold-tone chain shoulder strap, not leather strap with brass dogleash clips or buckle",
        "photo 2, photo 5: gold-tone plated frame hardware, not solid brass vintage Coach hardware",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "seller states Made in Hong Kong for Jacobson's and fully lined - inconsistent with unlined US glove-tanned Coach classics"
    ],
    "missing_information": [
        "photo 1-6: interior lining and slip pocket are not shown, despite the seller stating that the bag is fully lined.",
        "photo 1-6: no interior brand label, country label, or manufacturer tag is shown.",
        "photo 1-6: no clear bottom, interior, or closure-detail photo showing any maker markings.",
        "interior lining and any maker label not shown - request emptied interior photo",
        "creed patch not shown - request interior back wall \/ slip pocket close-up in raking light",
        "hardware stamps \/ Made-in tag not shown"
    ],
    "authenticity_concerns": [
        "The visible macram\u00e9 construction and kiss-lock evening-bag design do not match the usual leather construction of the vintage Coach models in the reference catalog.",
        "No Coach identifier is visible; this is best treated as a non-Coach vintage bag unless additional interior labeling shows otherwise.",
        "photo 2, photo 4: macrame textile body incompatible with 1970s Coach glove-tanned leather construction",
        "photo 1, photo 2: kisslock frame closure, not Coach turnlock geometry of the era"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the bag is a macram\u00e9\/textile kiss-lock evening bag rather than a leather Coach catalog silhouette.",
        "The seller's stated 1970s date is plausible for the styling, but no photograph provides a date or maker identifier; era remains unknown.",
        "Condition appears approximately Very Good from the visible exterior: the textile and frame appear intact with no obvious major damage in photos 1-6, but the interior and odor are unknown.",
        "No Coach model fits: macrame body, kisslock frame, and chain strap match 1970s department-store evening bag, not any Classic glove-tanned catalog style (City Bag, Willis, Court, Dinky, etc.)",
        "Seller attribution to Jacobson's Hong Kong is consistent with photos; no Coach identifier to decode for era",
        "Condition: appears Excellent with intact weave and frame per photos, but interior, bottom corners, and odor not assessable from photos so grade 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 2: gold-tone metal kiss-lock frame; photos 1 and 3: thin linked chain shoulder strap. No branding is legible.",
        "leather_description": "photo 1-5: no leather exterior is visible; the exterior appears to be densely looped or crocheted navy textile\/macram\u00e9.",
        "lining_description": "not_visible",
        "strap_construction": "photos 1 and 6: thin metal chain shoulder strap attached at both upper sides; seller states approximately a 16.5-inch drop.",
        "stitching_description": "not_visible - macrame weave only, no leather stitching visible"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.002,
    "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": 0.03,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.04,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a handbag-sized shoulder bag with a structured rectangular silhouette.",
                    "photo 2: the bag has a metal kiss-lock frame and chain shoulder strap, both compatible with vintage evening-bag construction.",
                    "listing text: seller states it is a 1970s Jacobson's bag made in Hong Kong, but this is not independently verified by the photos."
                ],
                "negative_evidence": [
                    "photo 1: the exterior is densely covered in navy macram\u00e9\/textile material rather than Coach's characteristic leather or recognizable Coach signature canvas.",
                    "photo 2: no COACH wordmark, horse-and-carriage emblem, or other visible Coach branding.",
                    "photo 3: the chain and frame hardware show no visible Coach engraving.",
                    "photo 5: no leather hangtag or other Coach-specific identifier is visible.",
                    "listing text: seller identifies the bag as Jacobson's and made in Hong Kong, not Coach."
                ],
                "missing_information": [
                    "photo 1-6: interior lining and slip pocket are not shown, despite the seller stating that the bag is fully lined.",
                    "photo 1-6: no interior brand label, country label, or manufacturer tag is shown.",
                    "photo 1-6: no clear bottom, interior, or closure-detail photo showing any maker markings."
                ],
                "authenticity_concerns": [
                    "The visible macram\u00e9 construction and kiss-lock evening-bag design do not match the usual leather construction of the vintage Coach models in the reference catalog.",
                    "No Coach identifier is visible; this is best treated as a non-Coach vintage bag unless additional interior labeling shows otherwise."
                ],
                "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: gold-tone metal kiss-lock frame; photos 1 and 3: thin linked chain shoulder strap. No branding is legible.",
                    "leather_description": "photo 1-5: no leather exterior is visible; the exterior appears to be densely looped or crocheted navy textile\/macram\u00e9.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1 and 6: thin metal chain shoulder strap attached at both upper sides; seller states approximately a 16.5-inch drop.",
                    "stitching_description": "not_visible"
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the bag is a macram\u00e9\/textile kiss-lock evening bag rather than a leather Coach catalog silhouette.",
                    "The seller's stated 1970s date is plausible for the styling, but no photograph provides a date or maker identifier; era remains unknown.",
                    "Condition appears approximately Very Good from the visible exterior: the textile and frame appear intact with no obvious major damage in photos 1-6, but the interior and odor are unknown."
                ],
                "confidence": 0.76,
                "recommended_max_bid": 8,
                "estimated_resale_low": 8,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 2, photo 4: macrame textile body incompatible with 1970s Coach glove-tanned leather construction",
                    "photo 1, photo 2: kisslock frame closure, not Coach turnlock geometry of the era"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.9,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "interior lining and any maker label not shown - request emptied interior photo",
                    "creed patch not shown - request interior back wall \/ slip pocket close-up in raking light",
                    "hardware stamps \/ Made-in tag not shown"
                ],
                "negative_evidence": [
                    "photo 2, photo 4: navy blue macrame \/ crochet woven textile body, not glove-tanned cowhide",
                    "photo 1, photo 2, photo 5: kisslock \/ frame closure with rectangular clasp, no turnlock present",
                    "photo 1, photo 3, photo 6: thin gold-tone chain shoulder strap, not leather strap with brass dogleash clips or buckle",
                    "photo 2, photo 5: gold-tone plated frame hardware, not solid brass vintage Coach hardware",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "seller states Made in Hong Kong for Jacobson's and fully lined - inconsistent with unlined US glove-tanned Coach classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone kisslock frame with rectangular clasp and thin gold-tone twisted chain shoulder strap; plated appearance, not solid brass turnlock",
                    "leather_description": "not leather - navy blue macrame \/ crochet woven textile visible in photo 2 and photo 4",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible - macrame weave only, no leather stitching visible",
                    "strap_construction": "metal chain shoulder strap attached to frame ends, photo 1, photo 3, photo 6",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: macrame body, kisslock frame, and chain strap match 1970s department-store evening bag, not any Classic glove-tanned catalog style (City Bag, Willis, Court, Dinky, etc.)",
                    "Seller attribution to Jacobson's Hong Kong is consistent with photos; no Coach identifier to decode for era",
                    "Condition: appears Excellent with intact weave and frame per photos, but interior, bottom corners, and odor not assessable from photos so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.05,
                "vintage_probability": 0.65
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17788,
            "output_tokens": 932,
            "total_tokens": 18720,
            "estimated_cost_usd": 0.009352
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18125,
            "output_tokens": 1637,
            "total_tokens": 19762,
            "estimated_cost_usd": 0.004935
        }
    ]
}