Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.06,
    "vintage_probability": 0.22,
    "authenticity_confidence": 0.055,
    "image_quality_score": 0.735,
    "seller_misidentification_probability": 0.06,
    "confidence": 0.78,
    "recommended_max_bid": 11,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a leather shoulder handbag with a practical zippered front pocket and multiple compartments.",
        "photo 1: The bag has long leather shoulder straps and a structured\/slightly tapered silhouette."
    ],
    "negative_evidence": [
        "photo 1: No visible Coach wordmark, horse-and-carriage, hangtag, or other Coach branding.",
        "photo 4: Interior is fabric-lined rather than the unlined suede-backed construction common to many classic vintage Coach bags.",
        "photo 1: The silhouette and front zip-pocket construction are generic and do not strongly match a specific vintage Coach classic.",
        "photo 6: Strap and edge construction appear worn and heavily stitched, but no Coach-specific hardware or construction marker is visible.",
        "seller listing: Seller states no brand or tags; this is weak context only and does not establish Coach manufacture.",
        "photo 1-3: zip-top tote with exterior zip pocket and thin sewn-on double shoulder straps - no Coach catalog silhouette, no turnlock, no flap",
        "photo 4-5: fully lined with green plain fabric lining - vintage Coach classics are unlined suede-back glove-tanned, not fabric-lined",
        "photo 1-6: heavily pebbled grain leather with contrast tan stitching - not smooth glove-tanned cowhide with tone-matched stitching",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
        "photo 1,4: silver-tone zipper hardware - vintage Coach classics use solid brass throughout"
    ],
    "missing_information": [
        "photo set: No interior creed patch or brand label is shown; request a fully emptied interior, especially the back wall and all pockets.",
        "photo set: No close-up of zipper pull, zipper markings, or other hardware is provided.",
        "photo set: No full bottom view or clear close-ups of all corners are provided.",
        "photo set: No full strap attachment and buckle\/hardware details are shown.",
        "photo of any interior leather creed patch or fabric brand tag straight-on in raking light - none visible in photos 4-5",
        "photo of zipper pull brand stamp and hardware back plates",
        "photo of bottom and all four corners to confirm wear"
    ],
    "authenticity_concerns": [
        "photo 4: Fabric lining and the absence of any visible Coach identifier are more consistent with a generic leather handbag than a classic vintage Coach bag.",
        "photo 1: Generic styling without a creed, wordmark, or Coach-specific hardware provides insufficient evidence of Coach manufacture."
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because the visible evidence does not support a Coach identification and no Coach identifier is shown.",
        "The zippered front pocket, fabric lining, and long shoulder straps could fit many generic 2000s or later leather shoulder bags.",
        "Condition: Good to Very Good; visible creasing and strap\/edge wear are present, while the interior appears generally clean in the provided photos. Bottom and full-corner condition are not fully documented.",
        "No Coach model matches: zip-top pebbled tote with fabric lining, sewn-on thin straps and exterior zip pocket does not match City Bag, Court, Station, Willis, Duffle or other classics which are unlined glove-tanned with turnlock or buckle details",
        "No hard identifiers to decode: no creed, no serial, no country line, no wordmark; era cannot be Coach-dated so rated modern non-Coach by construction",
        "Condition: Very Good; seller states very clean inside and out with only some corner wear, photos 1-2 show light wear and soft creasing, strap shows creasing but no cracking in photo 6, interior looks clean in photo 4-5 but bottom corners not fully shown"
    ],
    "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: Visible zipper closure and zipper pull; no legible brand engraving. Other hardware is not clearly shown.",
        "leather_description": "photos 1-3: Brown\/light brown pebbled leather with a moderately glossy finish and visible creasing\/wear.",
        "lining_description": "photos 4-5: Green fabric lining is visible; no brand label or creed is visible.",
        "strap_construction": "photos 1-3 and 6: Long narrow leather shoulder straps attached with stitched leather tabs; visible wear and creasing near the strap area.",
        "stitching_description": "photos 1 and 6: Contrasting light stitching is visible and generally follows the edges; photo 6 shows substantial wear and roughness around the strap\/edge area."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0023,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.09,
                "vintage_probability": 0.14,
                "authenticity_confidence": 0.08,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.09,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a leather shoulder handbag with a practical zippered front pocket and multiple compartments.",
                    "photo 1: The bag has long leather shoulder straps and a structured\/slightly tapered silhouette."
                ],
                "negative_evidence": [
                    "photo 1: No visible Coach wordmark, horse-and-carriage, hangtag, or other Coach branding.",
                    "photo 4: Interior is fabric-lined rather than the unlined suede-backed construction common to many classic vintage Coach bags.",
                    "photo 1: The silhouette and front zip-pocket construction are generic and do not strongly match a specific vintage Coach classic.",
                    "photo 6: Strap and edge construction appear worn and heavily stitched, but no Coach-specific hardware or construction marker is visible.",
                    "seller listing: Seller states no brand or tags; this is weak context only and does not establish Coach manufacture."
                ],
                "missing_information": [
                    "photo set: No interior creed patch or brand label is shown; request a fully emptied interior, especially the back wall and all pockets.",
                    "photo set: No close-up of zipper pull, zipper markings, or other hardware is provided.",
                    "photo set: No full bottom view or clear close-ups of all corners are provided.",
                    "photo set: No full strap attachment and buckle\/hardware details are shown."
                ],
                "authenticity_concerns": [
                    "photo 4: Fabric lining and the absence of any visible Coach identifier are more consistent with a generic leather handbag than a classic vintage Coach bag.",
                    "photo 1: Generic styling without a creed, wordmark, or Coach-specific hardware provides insufficient evidence of 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": "photo 1: Visible zipper closure and zipper pull; no legible brand engraving. Other hardware is not clearly shown.",
                    "leather_description": "photos 1-3: Brown\/light brown pebbled leather with a moderately glossy finish and visible creasing\/wear.",
                    "lining_description": "photos 4-5: Green fabric lining is visible; no brand label or creed is visible.",
                    "strap_construction": "photos 1-3 and 6: Long narrow leather shoulder straps attached with stitched leather tabs; visible wear and creasing near the strap area.",
                    "stitching_description": "photos 1 and 6: Contrasting light stitching is visible and generally follows the edges; photo 6 shows substantial wear and roughness around the strap\/edge area."
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because the visible evidence does not support a Coach identification and no Coach identifier is shown.",
                    "The zippered front pocket, fabric lining, and long shoulder straps could fit many generic 2000s or later leather shoulder bags.",
                    "Condition: Good to Very Good; visible creasing and strap\/edge wear are present, while the interior appears generally clean in the provided photos. Bottom and full-corner condition are not fully documented."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo of any interior leather creed patch or fabric brand tag straight-on in raking light - none visible in photos 4-5",
                    "photo of zipper pull brand stamp and hardware back plates",
                    "photo of bottom and all four corners to confirm wear"
                ],
                "negative_evidence": [
                    "photo 1-3: zip-top tote with exterior zip pocket and thin sewn-on double shoulder straps - no Coach catalog silhouette, no turnlock, no flap",
                    "photo 4-5: fully lined with green plain fabric lining - vintage Coach classics are unlined suede-back glove-tanned, not fabric-lined",
                    "photo 1-6: heavily pebbled grain leather with contrast tan stitching - not smooth glove-tanned cowhide with tone-matched stitching",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible",
                    "photo 1,4: silver-tone zipper hardware - vintage Coach classics use solid brass throughout"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone zipper with rectangular pull (photo 1, photo 4); no turnlock, no brass dogleash clips, no stamped hardware visible",
                    "leather_description": "brown pebbled-grain leather tote, lighter brown in photo 1-2, darker in photo 3 and 6; soft slouchy hand, not smooth glove-tanned",
                    "lining_description": "green plain fabric lining visible in photo 4 interior pocket and photo 5 main compartment",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "contrast light tan stitching around edges, pockets and straps, visible in photo 1, 2, 5, 6",
                    "strap_construction": "thin double fixed shoulder straps sewn directly to body with oval reinforcement patches (photo 2, photo 5); no buckle adjustment, no detachable clips, no dowel handle",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model matches: zip-top pebbled tote with fabric lining, sewn-on thin straps and exterior zip pocket does not match City Bag, Court, Station, Willis, Duffle or other classics which are unlined glove-tanned with turnlock or buckle details",
                    "No hard identifiers to decode: no creed, no serial, no country line, no wordmark; era cannot be Coach-dated so rated modern non-Coach by construction",
                    "Condition: Very Good; seller states very clean inside and out with only some corner wear, photos 1-2 show light wear and soft creasing, strap shows creasing but no cracking in photo 6, interior looks clean in photo 4-5 but bottom corners not fully shown"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17758,
            "output_tokens": 863,
            "total_tokens": 18621,
            "estimated_cost_usd": 0.009174
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18097,
            "output_tokens": 1276,
            "total_tokens": 19373,
            "estimated_cost_usd": 0.00464
        }
    ]
}