Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.04,
    "vintage_probability": 0.735,
    "authenticity_confidence": 0.04,
    "image_quality_score": 0.745,
    "seller_misidentification_probability": 0.46,
    "confidence": 0.75,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a leather shoulder\/saddle-style handbag with a long strap and flap construction.",
        "photo 1: The tan leather and aged appearance are compatible with a vintage bag, although this does not specifically support Coach.",
        "photo 2-4: unlined suede-back leather interior consistent with 1970s glove-tanned construction in general",
        "photo 1,5,6: solid leather flap saddle-bag silhouette and patina suggest 1970s vintage leather bag"
    ],
    "negative_evidence": [
        "photo 1: The front has a prominent floral\/sunburst embossed motif rather than a recognizable Coach design or logo.",
        "photo 1: Visible closures are small snap studs; no Coach-style turnlock is visible.",
        "photo 1: Hardware appears silver- or dark-tone rather than the solid brass hardware commonly associated with classic vintage Coach.",
        "photo 1: No Coach wordmark, horse-and-carriage, creed patch, or hangtag is visible in the provided exterior photos.",
        "photo 2: The reverse and flap construction do not show a recognizable catalog Coach silhouette or Coach identifier.",
        "photo 3: Close-up of the flap shows decorative embossing and snaps but no Coach branding.",
        "photo 4: The bag appears constructed with decorative tooling and multiple external compartments, more consistent with a generic or artisan leather saddle bag than a classic Coach model.",
        "photo 7: The measurement photo suggests approximately 8\u20139 inches in height, but size alone does not identify it as Coach.",
        "photo 1-6: no COACH wordmark, horse-and-carriage, or creed patch visible",
        "photo 2,4: closure is snap\/button, no turnlock present",
        "photo 1,6: large embossed southwestern sunburst\/floral tooling on flap not seen on Coach classics",
        "photo 2-4: no hangtag, no bead chain, no dogleash clips, no Talon\/YKK zip seen"
    ],
    "missing_information": [
        "photo 1-7: Interior is not shown; request clear photos of every interior wall, pocket, and seam for a creed patch or fabric label.",
        "photo 1-7: Request close-ups of all hardware, zipper pulls, underside of snaps, and any hidden stamps.",
        "photo 1-7: Request a clear photo of the bottom, side seams, strap ends, and any maker mark.",
        "photo 1-7: Seller's claimed 1970s era is not independently supported; request provenance or additional dated construction details.",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
        "close-up of any stamps on hardware, hangtag, or interior",
        "bottom and corner close-ups for condition grading",
        "seller-stated dimensions and strap length"
    ],
    "authenticity_concerns": [
        "photo 1: The decorative embossed motif and snap-based construction do not provide Coach evidence and are inconsistent with the most recognizable classic Coach saddle\/crossbody styles.",
        "photo 1-7: No Coach identifier is visible, so Coach manufacture cannot be supported from the listing photos.",
        "photo 1: large tooled sunburst\/floral embossing on flap is not a Coach classic motif and inconsistent with 1970s-1990s Coach catalog styles"
    ],
    "possible_model_reasoning": [
        "photo 1-7: The bag is a generic embossed leather saddle\/shoulder bag; no Coach model is a sufficiently close or supported match.",
        "photo 1-7: The seller's 'Vintage 70s' wording is unverified listing text, and the photos do not show a pre-creed Coach label, cartouche, or other period identifier.",
        "photo 1-7: Condition appears Good: noticeable scratches, discoloration, edge wear, and hardware aging are visible; interior condition and odor are unknown.",
        "No Coach model fits: snap closure plus large tooled flap decoration does not match City Bag, Dinky, Court, Willis, Station or other turnlock classics; no creed or wordmark to decode; Condition: Good to Very Good; surface scratches and patina (photos 1,5), edge wear at bottom (photo 5), strap intact but fold points not shown, interior not fully emptied so lining\/odor unknown"
    ],
    "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 1-6: Multiple small snap studs and dark\/silver-tone fittings are visible; no turning-tab lock, Coach engraving, zipper stamp, or hangtag is visible.",
        "leather_description": "photo 1-7: Tan\/brown leather with a smooth-to-mildly pebbled surface, substantial surface scuffs and scratches, and extensive floral\/sunburst embossing\/tooling.",
        "lining_description": "unlined suede-back interior visible on flap underside and body in photos 2-4",
        "strap_construction": "photo 1, 2, and 6: Long adjustable leather shoulder strap attached with sewn leather tabs, snaps, and side hardware; exact attachment construction is visible but no Coach-specific feature is present.",
        "stitching_description": "photo 1-6: Mostly straight, contrasting light stitching is visible around the flap, body, and strap tabs; some exposed stress areas show wear and darkening."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0269,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.04,
                "vintage_probability": 0.72,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a leather shoulder\/saddle-style handbag with a long strap and flap construction.",
                    "photo 1: The tan leather and aged appearance are compatible with a vintage bag, although this does not specifically support Coach."
                ],
                "negative_evidence": [
                    "photo 1: The front has a prominent floral\/sunburst embossed motif rather than a recognizable Coach design or logo.",
                    "photo 1: Visible closures are small snap studs; no Coach-style turnlock is visible.",
                    "photo 1: Hardware appears silver- or dark-tone rather than the solid brass hardware commonly associated with classic vintage Coach.",
                    "photo 1: No Coach wordmark, horse-and-carriage, creed patch, or hangtag is visible in the provided exterior photos.",
                    "photo 2: The reverse and flap construction do not show a recognizable catalog Coach silhouette or Coach identifier.",
                    "photo 3: Close-up of the flap shows decorative embossing and snaps but no Coach branding.",
                    "photo 4: The bag appears constructed with decorative tooling and multiple external compartments, more consistent with a generic or artisan leather saddle bag than a classic Coach model.",
                    "photo 7: The measurement photo suggests approximately 8\u20139 inches in height, but size alone does not identify it as Coach."
                ],
                "missing_information": [
                    "photo 1-7: Interior is not shown; request clear photos of every interior wall, pocket, and seam for a creed patch or fabric label.",
                    "photo 1-7: Request close-ups of all hardware, zipper pulls, underside of snaps, and any hidden stamps.",
                    "photo 1-7: Request a clear photo of the bottom, side seams, strap ends, and any maker mark.",
                    "photo 1-7: Seller's claimed 1970s era is not independently supported; request provenance or additional dated construction details."
                ],
                "authenticity_concerns": [
                    "photo 1: The decorative embossed motif and snap-based construction do not provide Coach evidence and are inconsistent with the most recognizable classic Coach saddle\/crossbody styles.",
                    "photo 1-7: No Coach identifier is visible, so Coach manufacture cannot be supported from the listing photos."
                ],
                "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 1-6: Multiple small snap studs and dark\/silver-tone fittings are visible; no turning-tab lock, Coach engraving, zipper stamp, or hangtag is visible.",
                    "leather_description": "photo 1-7: Tan\/brown leather with a smooth-to-mildly pebbled surface, substantial surface scuffs and scratches, and extensive floral\/sunburst embossing\/tooling.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1, 2, and 6: Long adjustable leather shoulder strap attached with sewn leather tabs, snaps, and side hardware; exact attachment construction is visible but no Coach-specific feature is present.",
                    "stitching_description": "photo 1-6: Mostly straight, contrasting light stitching is visible around the flap, body, and strap tabs; some exposed stress areas show wear and darkening."
                },
                "possible_model_reasoning": [
                    "photo 1-7: The bag is a generic embossed leather saddle\/shoulder bag; no Coach model is a sufficiently close or supported match.",
                    "photo 1-7: The seller's 'Vintage 70s' wording is unverified listing text, and the photos do not show a pre-creed Coach label, cartouche, or other period identifier.",
                    "photo 1-7: Condition appears Good: noticeable scratches, discoloration, edge wear, and hardware aging are visible; interior condition and odor are unknown."
                ],
                "confidence": 0.8,
                "recommended_max_bid": 12,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 1: large tooled sunburst\/floral embossing on flap is not a Coach classic motif and inconsistent with 1970s-1990s Coach catalog styles"
                ],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.04,
                "confidence": 0.7,
                "estimated_era": "unknown",
                "estimated_resale_high": 50,
                "estimated_resale_low": 20,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
                    "close-up of any stamps on hardware, hangtag, or interior",
                    "bottom and corner close-ups for condition grading",
                    "seller-stated dimensions and strap length"
                ],
                "negative_evidence": [
                    "photo 1-6: no COACH wordmark, horse-and-carriage, or creed patch visible",
                    "photo 2,4: closure is snap\/button, no turnlock present",
                    "photo 1,6: large embossed southwestern sunburst\/floral tooling on flap not seen on Coach classics",
                    "photo 2-4: no hangtag, no bead chain, no dogleash clips, no Talon\/YKK zip seen"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone snap closure and small rivets at strap anchors; tarnished\/darkened tone, no COACH engraving visible",
                    "leather_description": "tan smooth leather with patina and surface scratches; flap front with embossed sunburst and floral wreath tooling; underside shows suede",
                    "lining_description": "unlined suede-back interior visible on flap underside and body in photos 2-4",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light contrast stitching around flap edge, even but not close-up enough to assess fully",
                    "strap_construction": "narrow flat adjustable shoulder strap attached with rivets and loops, no buckle slide or dogleash clips visible",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 2-4: unlined suede-back leather interior consistent with 1970s glove-tanned construction in general",
                    "photo 1,5,6: solid leather flap saddle-bag silhouette and patina suggest 1970s vintage leather bag"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: snap closure plus large tooled flap decoration does not match City Bag, Dinky, Court, Willis, Station or other turnlock classics; no creed or wordmark to decode; Condition: Good to Very Good; surface scratches and patina (photos 1,5), edge wear at bottom (photo 5), strap intact but fold points not shown, interior not fully emptied so lining\/odor unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.04,
                "vintage_probability": 0.75
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 26611,
            "output_tokens": 1009,
            "total_tokens": 27620,
            "estimated_cost_usd": 0.013066
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 27527,
            "output_tokens": 1431,
            "total_tokens": 28958,
            "estimated_cost_usd": 0.00665
        }
    ]
}