Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.045,
    "vintage_probability": 0.09,
    "authenticity_confidence": 0.04,
    "image_quality_score": 0.815,
    "seller_misidentification_probability": 0.06,
    "confidence": 0.785,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a large structured leather-look tote handbag with shoulder straps and a zip-top closure",
        "photo 4: zipper pull is visibly marked YKK, a legitimate common zipper brand but not Coach-specific",
        "photo 5: unlined leather interior with interior zip pocket is consistent in construction type with unlined leather bags, but not diagnostic of Coach alone",
        "photo 4: YKK zipper is used by Coach from 1990s onward, but also generic",
        "photo 1-3: genuine leather appearance with even stitching"
    ],
    "negative_evidence": [
        "photo 1: no visible Coach wordmark, horse-and-carriage, hangtag, or signature pattern",
        "photo 6: interior is shown without a visible Coach creed patch or style-number tag",
        "photos 1-3: silhouette and construction are a generic modern large tote rather than a recognizable vintage Coach classic",
        "photos 1 and 5: highly pebbled, uniformly finished leather and contemporary long top zipper suggest modern production, not vintage glove-tanned Coach construction",
        "photo 1,2,3,6: large zip-top tote silhouette with fixed double shoulder straps - no turnlock closure, no flap, no Coach classic catalog silhouette match",
        "photo 5: interior shown open with no creed patch, no COACH wordmark, no horse-and-carriage visible",
        "photo 1-6: no leather hangtag, no bead chain, no wordmark on exterior, straps or hardware visible",
        "photo 4: YKK-marked brass-tone zipper pull with no COACH engraving",
        "photo 1-3: pebbled grain black leather with soft slouch, not the smooth glove-tanned cowhide with suede-back unlined finish of 1970s-1990s classics"
    ],
    "missing_information": [
        "photo 6: no close-up of every interior seam or pocket label\/tag",
        "photo 3: zipper and hardware close-up does not establish maker identity; additional hardware markings should be checked",
        "photo 1: bottom and all corner construction are not shown clearly enough for detailed condition assessment",
        "seller-stated dimensions and material composition are not independently verifiable",
        "photo 5 shows interior but no creed patch visible - need straight-on raking-light photo of interior back wall and slip pocket to confirm no creed",
        "no photo of any interior fabric tag, brand stamp, or Made-in line",
        "no hardware brand stamps other than YKK zipper shown",
        "no bottom \/ corner close-up to fully grade wear"
    ],
    "authenticity_concerns": [
        "No Coach identifiers are visible despite clear views of the exterior and interior; this is more consistent with an unbranded modern leather tote than a Coach bag",
        "The modern generic tote construction does not match a clearly identifiable Coach model or era"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the bag lacks a creed, wordmark, hangtag, turnlock, or recognizable Coach-specific silhouette.",
        "Condition appears Very Good from the visible exterior: intact structure and hardware with some normal creasing; interior and unseen bottom areas prevent a higher assessment.",
        "No Coach model fits: zip-top large tote with fixed straps and no turnlock, no creed, no hangtag, no wordmark does not match City Bag, Willis, Court, Station, Duffle Sac or other catalog styles which all have turnlock\/flap or distinct hardware",
        "Era reasoning: pebbled leather, YKK zip, zip-tote form and construction suggest modern generic tote, not NYC\/US creed era",
        "Condition: Very Good to Excellent as photographed - leather clean with no corner wear shown, straps intact, zipper functional, interior dark but no obvious stains in photo 5; capped because no bottom close-up and no odor\/mold assessment"
    ],
    "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 5: gold-tone metal YKK zipper pull and zipper teeth are visible; no Coach engraving is visible",
        "leather_description": "photos 1-5: black pebbled leather or leather-like material with a uniform contemporary finish; exact material cannot be confirmed from photos",
        "lining_description": "photo 6: dark fabric or suede-like interior with multiple compartments and a zip pocket; no logo lining is visible",
        "strap_construction": "photos 1-3: two fixed shoulder straps, apparently folded and stitched into the upper body with triangular reinforcement stitching",
        "stitching_description": "photos 1-6: generally regular machine stitching and reinforced strap attachments are visible; some raw or lightly finished strap edges are visible in photo 3"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0022,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.04,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.07,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a large structured leather-look tote handbag with shoulder straps and a zip-top closure",
                    "photo 4: zipper pull is visibly marked YKK, a legitimate common zipper brand but not Coach-specific"
                ],
                "negative_evidence": [
                    "photo 1: no visible Coach wordmark, horse-and-carriage, hangtag, or signature pattern",
                    "photo 6: interior is shown without a visible Coach creed patch or style-number tag",
                    "photos 1-3: silhouette and construction are a generic modern large tote rather than a recognizable vintage Coach classic",
                    "photos 1 and 5: highly pebbled, uniformly finished leather and contemporary long top zipper suggest modern production, not vintage glove-tanned Coach construction"
                ],
                "missing_information": [
                    "photo 6: no close-up of every interior seam or pocket label\/tag",
                    "photo 3: zipper and hardware close-up does not establish maker identity; additional hardware markings should be checked",
                    "photo 1: bottom and all corner construction are not shown clearly enough for detailed condition assessment",
                    "seller-stated dimensions and material composition are not independently verifiable"
                ],
                "authenticity_concerns": [
                    "No Coach identifiers are visible despite clear views of the exterior and interior; this is more consistent with an unbranded modern leather tote than a Coach bag",
                    "The modern generic tote construction does not match a clearly identifiable Coach model or era"
                ],
                "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 5: gold-tone metal YKK zipper pull and zipper teeth are visible; no Coach engraving is visible",
                    "leather_description": "photos 1-5: black pebbled leather or leather-like material with a uniform contemporary finish; exact material cannot be confirmed from photos",
                    "lining_description": "photo 6: dark fabric or suede-like interior with multiple compartments and a zip pocket; no logo lining is visible",
                    "strap_construction": "photos 1-3: two fixed shoulder straps, apparently folded and stitched into the upper body with triangular reinforcement stitching",
                    "stitching_description": "photos 1-6: generally regular machine stitching and reinforced strap attachments are visible; some raw or lightly finished strap edges are visible in photo 3"
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the bag lacks a creed, wordmark, hangtag, turnlock, or recognizable Coach-specific silhouette.",
                    "Condition appears Very Good from the visible exterior: intact structure and hardware with some normal creasing; interior and unseen bottom areas prevent a higher assessment."
                ],
                "confidence": 0.87,
                "recommended_max_bid": 15,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.05,
                "confidence": 0.7,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 5 shows interior but no creed patch visible - need straight-on raking-light photo of interior back wall and slip pocket to confirm no creed",
                    "no photo of any interior fabric tag, brand stamp, or Made-in line",
                    "no hardware brand stamps other than YKK zipper shown",
                    "no bottom \/ corner close-up to fully grade wear"
                ],
                "negative_evidence": [
                    "photo 1,2,3,6: large zip-top tote silhouette with fixed double shoulder straps - no turnlock closure, no flap, no Coach classic catalog silhouette match",
                    "photo 5: interior shown open with no creed patch, no COACH wordmark, no horse-and-carriage visible",
                    "photo 1-6: no leather hangtag, no bead chain, no wordmark on exterior, straps or hardware visible",
                    "photo 4: YKK-marked brass-tone zipper pull with no COACH engraving",
                    "photo 1-3: pebbled grain black leather with soft slouch, not the smooth glove-tanned cowhide with suede-back unlined finish of 1970s-1990s classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone top zip with YKK-stamped pull visible in photo 4; small leather pull tab; no turnlock, no buckles, no dogleash clips visible",
                    "leather_description": "black pebbled-grain leather, soft slouchy hand, visible grain in photo 1,3,4; not clearly the smooth matte glove-tanned cowhide of vintage Coach",
                    "lining_description": "photo 5: appears unlined black leather \/ suede-back interior with interior zip pocket; no fabric lining, no printed lining visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight stitching tone-matched to leather; X-box stitching at strap anchors visible in photo 1,2,6",
                    "strap_construction": "two fixed double shoulder straps, sewn directly to body with reinforced X-box stitching, no buckle adjustment or detachable clips visible",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 5: unlined leather interior with interior zip pocket is consistent in construction type with unlined leather bags, but not diagnostic of Coach alone",
                    "photo 4: YKK zipper is used by Coach from 1990s onward, but also generic",
                    "photo 1-3: genuine leather appearance with even stitching"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: zip-top large tote with fixed straps and no turnlock, no creed, no hangtag, no wordmark does not match City Bag, Willis, Court, Station, Duffle Sac or other catalog styles which all have turnlock\/flap or distinct hardware",
                    "Era reasoning: pebbled leather, YKK zip, zip-tote form and construction suggest modern generic tote, not NYC\/US creed era",
                    "Condition: Very Good to Excellent as photographed - leather clean with no corner wear shown, straps intact, zipper functional, interior dark but no obvious stains in photo 5; capped because no bottom close-up and no odor\/mold assessment"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.05,
                "vintage_probability": 0.15
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 29797,
            "output_tokens": 831,
            "total_tokens": 30628,
            "estimated_cost_usd": 0.013913
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 31272,
            "output_tokens": 1474,
            "total_tokens": 32746,
            "estimated_cost_usd": 0.007434
        }
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}