Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.045,
    "vintage_probability": 0.195,
    "authenticity_confidence": 0.045,
    "image_quality_score": 0.745,
    "seller_misidentification_probability": 0.05,
    "confidence": 0.82,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Brown leather crossbody handbag with a flap closure and substantial leather construction.",
        "photo 6: Interior appears leather or suede-like rather than a printed textile lining.",
        "photo 1, photo 2: leather flap crossbody handbag silhouette in brown leather",
        "photo 4, photo 5: unlined suede-back interior, which alone is seen on vintage Coach but also on handmade bags"
    ],
    "negative_evidence": [
        "photo 1: No visible Coach wordmark, horse-and-carriage, or recognizable Coach hangtag.",
        "photo 1: Closure is a small silver-tone circular clasp, unlike the characteristic vintage Coach brass turnlock geometry.",
        "photos 2-3: Strap attachment and construction appear handmade or generic, with thin strap sections and exposed rivets.",
        "photos 4-6: No creed patch, serial\/style number, country line, or other Coach identifier is visible.",
        "photos 1-3: Silver-tone hardware and the overall rectangular flap silhouette are not strong matches for common vintage Coach classics.",
        "photo 1: small round silver-tone twist\/latch closure, not Coach solid-brass turnlock geometry with wide oval back plate",
        "photo 2, photo 3: strap ends riveted directly to bag body with silver-tone rivets, not Coach buckle-adjustable \/ dogleash \/ dowel construction",
        "photo 1, photo 2, photo 3: all hardware silver-tone and mixed rivet\/buckle\/latch, no solid brass tone seen on vintage classics",
        "photo 4, photo 5, photo 6: interior shows no creed patch, no wordmark, no fabric tag on back wall or pocket",
        "photo 4, photo 5, photo 6: crude unlined suede interior with rough fiber and simple edge stitching, not consistent Coach glove-tanned finishing and tight matched stitching",
        "photo 1-6: no leather hangtag, no bead chain, no horse-and-carriage, no COACH stamp visible",
        "seller text states Handmade Unbranded, consistent with photos"
    ],
    "missing_information": [
        "A straight-on photo of the entire interior back wall and all pockets to confirm whether any creed patch is present.",
        "Close-up photos of the clasp, rivets, strap ends, and any zipper or hardware markings.",
        "Bottom, side, and corner photos for condition and construction assessment.",
        "Seller-stated dimensions and any information about country of manufacture or maker markings.",
        "no creed patch visible in any interior view - request straight-on interior back wall photo to confirm absence",
        "no COACH wordmark \/ hangtag \/ hardware stamp shown - request close-ups of latch and buckle stamps",
        "no bottom \/ corners \/ side close-ups to fully grade wear",
        "no dimensions or scale object for model matching"
    ],
    "authenticity_concerns": [
        "photos 1-6: The bag has no visible Coach identifiers and is more consistent with a generic or handmade leather bag than with Coach manufacture.",
        "photos 1-3: Silver-tone clasp and exposed-rivet strap construction are inconsistent with the usual solid-brass construction of many vintage Coach flap bags."
    ],
    "possible_model_reasoning": [
        "The flap-and-crossbody silhouette is broadly compatible with many leather handbags, but it does not provide a reliable Coach model match.",
        "The clasp is not a strong match for the elegant brass turnlocks used on classic Coach styles such as the Dinky, Court, or Stewardess.",
        "Condition: Good; visible scratches and scuffs on the leather (photos 1-3), with hardware and interior condition only partially shown.",
        "no Coach catalog match: riveted strap, small round silver latch, proportions and crude finishing do not match Dinky (9375), Pocket Purse (9755), City Bag (9790) or other classics",
        "no creed\/serial to decode, no wordmark, hardware finish and construction inconsistent with any Coach era per consistency check",
        "Condition: Good to Very Good; surface scratches on flap (photo 1), light wear but no holes or corner blowouts seen; bottom and full interior not shown so 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 1: Small silver-tone circular twist-style clasp; photos 2-3: small exposed rivets and silver-tone strap hardware. No Coach engraving is visible.",
        "leather_description": "photos 1-3: Dark brown smooth leather with visible surface scratches and light scuffing; appears relatively thin and finished rather than clearly glove-tanned Coach leather.",
        "lining_description": "photos 4-6: Dark brown suede-like or leather interior with a central divider\/pocket; no printed lining or creed patch visible in the photographed areas.",
        "strap_construction": "photos 1-3: Long narrow adjustable-looking leather strap attached with rivets and a metal ring; construction appears handmade or generic.",
        "stitching_description": "photos 2-3: Perimeter stitching appears generally even and machine-sewn; some interior edges appear raw or simply finished."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0019,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.06,
                "vintage_probability": 0.24,
                "authenticity_confidence": 0.05,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.06,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Brown leather crossbody handbag with a flap closure and substantial leather construction.",
                    "photo 6: Interior appears leather or suede-like rather than a printed textile lining."
                ],
                "negative_evidence": [
                    "photo 1: No visible Coach wordmark, horse-and-carriage, or recognizable Coach hangtag.",
                    "photo 1: Closure is a small silver-tone circular clasp, unlike the characteristic vintage Coach brass turnlock geometry.",
                    "photos 2-3: Strap attachment and construction appear handmade or generic, with thin strap sections and exposed rivets.",
                    "photos 4-6: No creed patch, serial\/style number, country line, or other Coach identifier is visible.",
                    "photos 1-3: Silver-tone hardware and the overall rectangular flap silhouette are not strong matches for common vintage Coach classics."
                ],
                "missing_information": [
                    "A straight-on photo of the entire interior back wall and all pockets to confirm whether any creed patch is present.",
                    "Close-up photos of the clasp, rivets, strap ends, and any zipper or hardware markings.",
                    "Bottom, side, and corner photos for condition and construction assessment.",
                    "Seller-stated dimensions and any information about country of manufacture or maker markings."
                ],
                "authenticity_concerns": [
                    "photos 1-6: The bag has no visible Coach identifiers and is more consistent with a generic or handmade leather bag than with Coach manufacture.",
                    "photos 1-3: Silver-tone clasp and exposed-rivet strap construction are inconsistent with the usual solid-brass construction of many vintage Coach flap bags."
                ],
                "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 1: Small silver-tone circular twist-style clasp; photos 2-3: small exposed rivets and silver-tone strap hardware. No Coach engraving is visible.",
                    "leather_description": "photos 1-3: Dark brown smooth leather with visible surface scratches and light scuffing; appears relatively thin and finished rather than clearly glove-tanned Coach leather.",
                    "lining_description": "photos 4-6: Dark brown suede-like or leather interior with a central divider\/pocket; no printed lining or creed patch visible in the photographed areas.",
                    "strap_construction": "photos 1-3: Long narrow adjustable-looking leather strap attached with rivets and a metal ring; construction appears handmade or generic.",
                    "stitching_description": "photos 2-3: Perimeter stitching appears generally even and machine-sewn; some interior edges appear raw or simply finished."
                },
                "possible_model_reasoning": [
                    "The flap-and-crossbody silhouette is broadly compatible with many leather handbags, but it does not provide a reliable Coach model match.",
                    "The clasp is not a strong match for the elegant brass turnlocks used on classic Coach styles such as the Dinky, Court, or Stewardess.",
                    "Condition: Good; visible scratches and scuffs on the leather (photos 1-3), with hardware and interior condition only partially shown."
                ],
                "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": 0.04,
                "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": [
                    "no creed patch visible in any interior view - request straight-on interior back wall photo to confirm absence",
                    "no COACH wordmark \/ hangtag \/ hardware stamp shown - request close-ups of latch and buckle stamps",
                    "no bottom \/ corners \/ side close-ups to fully grade wear",
                    "no dimensions or scale object for model matching"
                ],
                "negative_evidence": [
                    "photo 1: small round silver-tone twist\/latch closure, not Coach solid-brass turnlock geometry with wide oval back plate",
                    "photo 2, photo 3: strap ends riveted directly to bag body with silver-tone rivets, not Coach buckle-adjustable \/ dogleash \/ dowel construction",
                    "photo 1, photo 2, photo 3: all hardware silver-tone and mixed rivet\/buckle\/latch, no solid brass tone seen on vintage classics",
                    "photo 4, photo 5, photo 6: interior shows no creed patch, no wordmark, no fabric tag on back wall or pocket",
                    "photo 4, photo 5, photo 6: crude unlined suede interior with rough fiber and simple edge stitching, not consistent Coach glove-tanned finishing and tight matched stitching",
                    "photo 1-6: no leather hangtag, no bead chain, no horse-and-carriage, no COACH stamp visible",
                    "seller text states Handmade Unbranded, consistent with photos"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone hardware throughout: small round twist\/latch front closure with T-post inside, silver buckle on strap, silver rivets attaching straps; not solid brass, not Coach turnlock geometry",
                    "leather_description": "dark brown smooth leather with surface scratches and sheen, handmade appearance, structured small flap crossbody",
                    "lining_description": "unlined - raw suede-back interior in brown, no fabric lining, no pockets visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "simple edge stitching visible around flap and body, light-colored thread on dark leather in interior views",
                    "strap_construction": "long thin flat crossbody strap with buckle adjustment, riveted directly to back of body",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1, photo 2: leather flap crossbody handbag silhouette in brown leather",
                    "photo 4, photo 5: unlined suede-back interior, which alone is seen on vintage Coach but also on handmade bags"
                ],
                "possible_model_reasoning": [
                    "no Coach catalog match: riveted strap, small round silver latch, proportions and crude finishing do not match Dinky (9375), Pocket Purse (9755), City Bag (9790) or other classics",
                    "no creed\/serial to decode, no wordmark, hardware finish and construction inconsistent with any Coach era per consistency check",
                    "Condition: Good to Very Good; surface scratches on flap (photo 1), light wear but no holes or corner blowouts seen; bottom and full interior not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.04,
                "vintage_probability": 0.15
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17707,
            "output_tokens": 950,
            "total_tokens": 18657,
            "estimated_cost_usd": 0.009363
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18052,
            "output_tokens": 1496,
            "total_tokens": 19548,
            "estimated_cost_usd": 0.004807
        }
    ]
}