Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.025,
    "vintage_probability": 0.45,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.745,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.855,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 35,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a leather crossbody handbag with a long adjustable strap and central turning closure",
        "photo 1: brass-tone hardware and leather construction are compatible with many vintage handbags, though not specific to Coach",
        "photo 1,2: leather handbag with brass-tone turnlock closure - general population where misidentified Coach hides",
        "photo 1: solid leather construction, not nylon \/ PVC \/ faux"
    ],
    "negative_evidence": [
        "photo 1: the bag has prominent hand-tooled floral decoration and decorative whip-stitching, unlike the smooth, comparatively understated leather used on typical vintage Coach classics",
        "photo 2: the closure is a large oval turnlock with a domed central tab, not the elegant thin Coach classic turnlock geometry",
        "photo 3: visible tooling includes the initials \"LJ\" rather than a Coach wordmark or horse-and-carriage identifier",
        "photo 4: side construction uses extensive contrasting whip-stitching, a strong lookalike\/handmade construction cue rather than a known Coach classic feature",
        "photo 5: the front has decorative tooling and no visible Coach branding, creed patch, or hangtag",
        "photo 1: seller title identifies the item as unbranded, which is consistent with the visible lack of Coach identifiers",
        "photo 1,5: cut-out top-handle silhouette with added crossbody strap matches no Coach catalog style",
        "photo 3,5: hand-tooled floral \/ butterfly embossing with personalized LJ initials - never used on vintage Coach classics",
        "photo 3,4: laced rawhide side and bottom seams instead of Coach stitched seams",
        "photos 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
        "photo 2: small oval turnlock geometry unlike Coach Cashin turnlock wide thin plate and keeper"
    ],
    "missing_information": [
        "photo 1-7: no interior view showing whether a creed patch, fabric label, or other maker mark is present",
        "photo 1-7: no bottom, back, or full interior photographs",
        "photo 1-7: no close-up of any zipper, lining, or interior construction",
        "photo 1-7: seller-stated dimensions and strap length are not provided",
        "interior views including back wall \/ pocket where creed would sit not shown",
        "bottom view and dimensions \/ scale not shown",
        "hangtag faces \/ wordmark close-up not shown - none visible",
        "hardware brand stamps on turnlock back plate and clips not shown"
    ],
    "authenticity_concerns": [
        "photo 2: the oversized rounded turnlock is inconsistent with the usual geometry of vintage Coach hardware",
        "photo 3: initials \"LJ\" and extensive hand tooling point to another maker or a handmade\/custom bag, not Coach",
        "photo 4: decorative whip-stitching and visible raw\/leather-edge construction do not match the expected construction of the likely Coach models"
    ],
    "possible_model_reasoning": [
        "photo 1: silhouette is a small handled crossbody\/bucket-style purse, but it does not closely match the listed Coach City Bag, Court, Willis, Dinky, or other classic catalog shapes",
        "photo 3: the visible \"LJ\" initials are not a Coach identifier and support a handmade or other-maker attribution",
        "photo 1-5: no visible creed, serial\/style number, wordmark, carriage, or Coach hangtag; a Coach attribution is therefore unsupported",
        "photo 1-5: condition appears Good; visible surface wear, color variation, edge wear, and rough strap edges are present, while the interior and functional condition remain unknown",
        "No Coach model fits: cut-out handle tote with tooling, lacing, and LJ monogram is artisan \/ handmade craft construction, not any Classic glove-tanned style like Dinky 9375, Station 5130, Court 9870",
        "No serial to decode, no creed era to assign; era assigned non-Coach based on construction",
        "Condition: Good to Very Good for a handmade bag; surface scuffs and tarnish (photo 2,5), strap edges rough (photo 1), interior unknown 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": true,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photo 2: large oval brass-tone turning closure with a domed central tab; photo 1: brass-tone strap clips and rings are visible",
        "leather_description": "photo 1: reddish-burgundy leather with extensive floral hand-tooling, surface variation, and decorative lacing; appears leather, but exact tanning and finish are not determinable",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: long leather strap attached with brass-tone swivel clips; strap edges appear unfinished or rough in places",
        "stitching_description": "photo 3-4: decorative whip-stitching\/lacing passes through punched holes along the lower edge and side seam; ordinary seam stitching is not clearly visible"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0031,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.03,
                "vintage_probability": 0.55,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a leather crossbody handbag with a long adjustable strap and central turning closure",
                    "photo 1: brass-tone hardware and leather construction are compatible with many vintage handbags, though not specific to Coach"
                ],
                "negative_evidence": [
                    "photo 1: the bag has prominent hand-tooled floral decoration and decorative whip-stitching, unlike the smooth, comparatively understated leather used on typical vintage Coach classics",
                    "photo 2: the closure is a large oval turnlock with a domed central tab, not the elegant thin Coach classic turnlock geometry",
                    "photo 3: visible tooling includes the initials \"LJ\" rather than a Coach wordmark or horse-and-carriage identifier",
                    "photo 4: side construction uses extensive contrasting whip-stitching, a strong lookalike\/handmade construction cue rather than a known Coach classic feature",
                    "photo 5: the front has decorative tooling and no visible Coach branding, creed patch, or hangtag",
                    "photo 1: seller title identifies the item as unbranded, which is consistent with the visible lack of Coach identifiers"
                ],
                "missing_information": [
                    "photo 1-7: no interior view showing whether a creed patch, fabric label, or other maker mark is present",
                    "photo 1-7: no bottom, back, or full interior photographs",
                    "photo 1-7: no close-up of any zipper, lining, or interior construction",
                    "photo 1-7: seller-stated dimensions and strap length are not provided"
                ],
                "authenticity_concerns": [
                    "photo 2: the oversized rounded turnlock is inconsistent with the usual geometry of vintage Coach hardware",
                    "photo 3: initials \"LJ\" and extensive hand tooling point to another maker or a handmade\/custom bag, not Coach",
                    "photo 4: decorative whip-stitching and visible raw\/leather-edge construction do not match the expected construction of the likely Coach models"
                ],
                "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": true,
                    "hangtag_present": false,
                    "hardware_description": "photo 2: large oval brass-tone turning closure with a domed central tab; photo 1: brass-tone strap clips and rings are visible",
                    "leather_description": "photo 1: reddish-burgundy leather with extensive floral hand-tooling, surface variation, and decorative lacing; appears leather, but exact tanning and finish are not determinable",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: long leather strap attached with brass-tone swivel clips; strap edges appear unfinished or rough in places",
                    "stitching_description": "photo 3-4: decorative whip-stitching\/lacing passes through punched holes along the lower edge and side seam; ordinary seam stitching is not clearly visible"
                },
                "possible_model_reasoning": [
                    "photo 1: silhouette is a small handled crossbody\/bucket-style purse, but it does not closely match the listed Coach City Bag, Court, Willis, Dinky, or other classic catalog shapes",
                    "photo 3: the visible \"LJ\" initials are not a Coach identifier and support a handmade or other-maker attribution",
                    "photo 1-5: no visible creed, serial\/style number, wordmark, carriage, or Coach hangtag; a Coach attribution is therefore unsupported",
                    "photo 1-5: condition appears Good; visible surface wear, color variation, edge wear, and rough strap edges are present, while the interior and functional condition remain unknown"
                ],
                "confidence": 0.86,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "interior views including back wall \/ pocket where creed would sit not shown",
                    "bottom view and dimensions \/ scale not shown",
                    "hangtag faces \/ wordmark close-up not shown - none visible",
                    "hardware brand stamps on turnlock back plate and clips not shown"
                ],
                "negative_evidence": [
                    "photo 1,5: cut-out top-handle silhouette with added crossbody strap matches no Coach catalog style",
                    "photo 3,5: hand-tooled floral \/ butterfly embossing with personalized LJ initials - never used on vintage Coach classics",
                    "photo 3,4: laced rawhide side and bottom seams instead of Coach stitched seams",
                    "photos 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
                    "photo 2: small oval turnlock geometry unlike Coach Cashin turnlock wide thin plate and keeper"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "photo 2: small oval brass-tone turnlock with tarnish; photo 5-6: brass-tone rivets and small dogleash-type swivel clips for crossbody strap",
                    "leather_description": "photo 1,3,5: reddish-brown smooth leather with hand-tooled floral \/ butterfly pattern and LJ initials, surface scuffing and patina",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "no conventional stitching visible; photo 3,4: tan lacing through punched holes at sides and bottom",
                    "strap_construction": "photo 1,5: thin flat unadjusted leather crossbody strap with raw edges attached via swivel hooks to side loops",
                    "turnlock_present": true
                },
                "positive_evidence": [
                    "photo 1,2: leather handbag with brass-tone turnlock closure - general population where misidentified Coach hides",
                    "photo 1: solid leather construction, not nylon \/ PVC \/ faux"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: cut-out handle tote with tooling, lacing, and LJ monogram is artisan \/ handmade craft construction, not any Classic glove-tanned style like Dinky 9375, Station 5130, Court 9870",
                    "No serial to decode, no creed era to assign; era assigned non-Coach based on construction",
                    "Condition: Good to Very Good for a handmade bag; surface scuffs and tarnish (photo 2,5), strap edges rough (photo 1), interior unknown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.35
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 25377,
            "output_tokens": 916,
            "total_tokens": 26293,
            "estimated_cost_usd": 0.012349
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 26141,
            "output_tokens": 1325,
            "total_tokens": 27466,
            "estimated_cost_usd": 0.006288
        }
    ]
}