Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.32,
    "vintage_probability": 0.745,
    "authenticity_confidence": 0.255,
    "image_quality_score": 0.695,
    "seller_misidentification_probability": 0.315,
    "confidence": 0.635,
    "recommended_max_bid": 47.5,
    "estimated_resale_low": 55,
    "estimated_resale_high": 142.5,
    "possible_models": [
        "Saddle Bag (style number not established)"
    ],
    "positive_evidence": [
        "photo 1: substantial brown leather crossbody handbag with a long adjustable strap and brass-tone hardware, consistent with the population of early Coach leather bags",
        "photo 1: unlined-looking leather construction and dogleash\/hasp-style closure are compatible with early Bonnie Cashin-era Coach designs",
        "photo 2: suede-like reverse side is visible on the flap, and the bag uses substantial leather components rather than synthetic or printed materials",
        "photo 3: overall saddle-style silhouette and strap arrangement are compatible with the Coach Saddle Bag catalog description",
        "photo 4: closure hardware and layered leather flap construction resemble early equestrian\/Cashin-era design language",
        "photo 1-4: all-leather flap crossbody bag with aged patina consistent with older leather",
        "photo 2,4: unlined suede-back construction similar to vintage glove-tanned technique",
        "photo 1-4: brass-tone metal rings\/hardware, not hollow chrome or plastic"
    ],
    "negative_evidence": [
        "photo 1: no legible COACH wordmark, carriage emblem, hangtag, or other direct Coach identifier is visible",
        "photo 2: no creed patch or readable serial number is shown",
        "photo 1: leather surface is unusually glossy and heavily wrinkled\/distressed compared with the typical matte-to-satin appearance of vintage glove-tanned Coach leather",
        "photo 1: the visible construction is not sufficiently distinctive to exclude an unbranded 1960s\u20131970s leather saddle-bag maker",
        "photo 1,3,4: no turnlock - closure is leather tab + brass-tone D-ring\/buckle, not Coach turnlock geometry",
        "photo 1-4: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
        "photo 1,3,4: white contrast stitching around flap and body - vintage Coach uses tone-matched stitching",
        "photo 1,3: buckle\/D-ring flap closure and thin riveted strap attachment do not match any catalog classic silhouette (City, Willis, Court, Station, Duffle, Saddle Bag)",
        "photo 2: zip pocket slider shows no Talon\/YKK\/Coach branding legible"
    ],
    "missing_information": [
        "photo 1-5: close, straight-on photograph of every interior wall and pocket, especially any sewn leather creed or pre-creed Coach label",
        "photo 1-5: close-up of all hardware, including the back of the closure, strap attachment points, and any stamps",
        "photo 1-5: bottom, side, corner, and full strap-condition photographs",
        "photo 1-5: confirmation of dimensions and whether the bag has a separate interior compartment or pocket",
        "photo 1-4: no creed patch shown - need straight-on interior back wall \/ slip pocket in raking light",
        "photo 1-4: no COACH wordmark, hangtag, or hardware stamp visible - need both faces of any tag and close-ups of rings\/zipper pull",
        "photo 2: interior main compartment not emptied\/shown - need lining and pocket views",
        "photo 1-4: no bottom, side, and corner close-ups - need all four corners and bottom"
    ],
    "authenticity_concerns": [
        "photo 1-5: absence of a visible Coach identifier leaves open the possibility that this is an unbranded Coach-style or period leather bag rather than Coach",
        "photo 1-5: the glossy, extensively distressed leather and construction cannot be confidently reconciled with a specific Coach production record from the available views"
    ],
    "possible_model_reasoning": [
        "The silhouette, long strap, dogleash\/hasp closure and unlined leather appearance are most compatible with an early Coach Saddle Bag, a Bonnie Cashin-era model generally dated around 1972.",
        "A pre-1975 Coach bag may legitimately lack a creed; however, no pre-creed Coach label or metal tag is visible in these photographs, so the model attribution remains tentative.",
        "Condition: Good to Fair; extensive surface scratches, dryness\/wrinkling and edge wear are visible in photos 1-5, while strap anchors and the closure appear present; interior condition and odor are unknown.",
        "No Coach model fits: closure is buckle\/D-ring not turnlock, contrast stitching, strap attachment and proportions do not match City (9790), Willis (9927), Court (9870), Station (5130), or Cashin Saddle Bag; no serial decode possible",
        "Era cannot be assigned to Coach timeline with no identifiers; bag itself looks old\/worn but maker unknown",
        "Condition: Good to Fair; visible scuffs, patina, edge wear, flap creasing and surface marks (photo 1-4), strap intact but worn, interior and bottom not shown so capped"
    ],
    "estimated_era": "pre-1975 (Cashin \/ pre-creed)",
    "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 1-4: brass-tone rings, rivets, buckle\/hasp and dogleash-like closure hardware are visible; no hardware branding is legible",
        "leather_description": "photo 1-5: brown leather with pronounced natural-looking wrinkles, scratches, scuffing and glossy wear; reverse side appears suede-like on the flap",
        "lining_description": "photo 2: suede-like leather reverse\/interior surface is visible; complete interior lining and pockets are not shown",
        "strap_construction": "photo 1-4: long adjustable leather shoulder\/crossbody strap attached with leather tabs, rings and rivets; visible wear and creasing",
        "stitching_description": "photo 1-5: perimeter stitching is visible and generally regular, though close-up stress-point inspection is unavailable"
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.025,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.56,
                "vintage_probability": 0.84,
                "authenticity_confidence": 0.43,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.55,
                "estimated_era": "pre-1975 (Cashin \/ pre-creed)",
                "possible_models": [
                    "Saddle Bag (style number not established)"
                ],
                "positive_evidence": [
                    "photo 1: substantial brown leather crossbody handbag with a long adjustable strap and brass-tone hardware, consistent with the population of early Coach leather bags",
                    "photo 1: unlined-looking leather construction and dogleash\/hasp-style closure are compatible with early Bonnie Cashin-era Coach designs",
                    "photo 2: suede-like reverse side is visible on the flap, and the bag uses substantial leather components rather than synthetic or printed materials",
                    "photo 3: overall saddle-style silhouette and strap arrangement are compatible with the Coach Saddle Bag catalog description",
                    "photo 4: closure hardware and layered leather flap construction resemble early equestrian\/Cashin-era design language"
                ],
                "negative_evidence": [
                    "photo 1: no legible COACH wordmark, carriage emblem, hangtag, or other direct Coach identifier is visible",
                    "photo 2: no creed patch or readable serial number is shown",
                    "photo 1: leather surface is unusually glossy and heavily wrinkled\/distressed compared with the typical matte-to-satin appearance of vintage glove-tanned Coach leather",
                    "photo 1: the visible construction is not sufficiently distinctive to exclude an unbranded 1960s\u20131970s leather saddle-bag maker"
                ],
                "missing_information": [
                    "photo 1-5: close, straight-on photograph of every interior wall and pocket, especially any sewn leather creed or pre-creed Coach label",
                    "photo 1-5: close-up of all hardware, including the back of the closure, strap attachment points, and any stamps",
                    "photo 1-5: bottom, side, corner, and full strap-condition photographs",
                    "photo 1-5: confirmation of dimensions and whether the bag has a separate interior compartment or pocket"
                ],
                "authenticity_concerns": [
                    "photo 1-5: absence of a visible Coach identifier leaves open the possibility that this is an unbranded Coach-style or period leather bag rather than Coach",
                    "photo 1-5: the glossy, extensively distressed leather and construction cannot be confidently reconciled with a specific Coach production record from the available views"
                ],
                "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 1-4: brass-tone rings, rivets, buckle\/hasp and dogleash-like closure hardware are visible; no hardware branding is legible",
                    "leather_description": "photo 1-5: brown leather with pronounced natural-looking wrinkles, scratches, scuffing and glossy wear; reverse side appears suede-like on the flap",
                    "lining_description": "photo 2: suede-like leather reverse\/interior surface is visible; complete interior lining and pockets are not shown",
                    "strap_construction": "photo 1-4: long adjustable leather shoulder\/crossbody strap attached with leather tabs, rings and rivets; visible wear and creasing",
                    "stitching_description": "photo 1-5: perimeter stitching is visible and generally regular, though close-up stress-point inspection is unavailable"
                },
                "possible_model_reasoning": [
                    "The silhouette, long strap, dogleash\/hasp closure and unlined leather appearance are most compatible with an early Coach Saddle Bag, a Bonnie Cashin-era model generally dated around 1972.",
                    "A pre-1975 Coach bag may legitimately lack a creed; however, no pre-creed Coach label or metal tag is visible in these photographs, so the model attribution remains tentative.",
                    "Condition: Good to Fair; extensive surface scratches, dryness\/wrinkling and edge wear are visible in photos 1-5, while strap anchors and the closure appear present; interior condition and odor are unknown."
                ],
                "confidence": 0.67,
                "recommended_max_bid": 80,
                "estimated_resale_low": 100,
                "estimated_resale_high": 250
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.08,
                "coach_probability": 0.08,
                "confidence": 0.6,
                "estimated_era": "unknown",
                "estimated_resale_high": 35,
                "estimated_resale_low": 10,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo 1-4: no creed patch shown - need straight-on interior back wall \/ slip pocket in raking light",
                    "photo 1-4: no COACH wordmark, hangtag, or hardware stamp visible - need both faces of any tag and close-ups of rings\/zipper pull",
                    "photo 2: interior main compartment not emptied\/shown - need lining and pocket views",
                    "photo 1-4: no bottom, side, and corner close-ups - need all four corners and bottom"
                ],
                "negative_evidence": [
                    "photo 1,3,4: no turnlock - closure is leather tab + brass-tone D-ring\/buckle, not Coach turnlock geometry",
                    "photo 1-4: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
                    "photo 1,3,4: white contrast stitching around flap and body - vintage Coach uses tone-matched stitching",
                    "photo 1,3: buckle\/D-ring flap closure and thin riveted strap attachment do not match any catalog classic silhouette (City, Willis, Court, Station, Duffle, Saddle Bag)",
                    "photo 2: zip pocket slider shows no Talon\/YKK\/Coach branding legible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone D-rings and small buckle at flap; simple rivets at strap ends; aged\/dulled tone, no engraving legible; no turnlock",
                    "leather_description": "medium brown smooth-to-lightly grained leather with patina, scuffs and darkening; flap underside shows suede-like back",
                    "lining_description": "appears unlined - suede back of leather visible under flap in photo 2 and photo 4; main compartment interior not shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "white\/cream contrast stitching around flap edge and body perimeter, even but contrasting - not tone-matched",
                    "strap_construction": "long thin flat leather crossbody strap, riveted ends with metal rings, adjustable buckle visible in photo 1 and 3",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-4: all-leather flap crossbody bag with aged patina consistent with older leather",
                    "photo 2,4: unlined suede-back construction similar to vintage glove-tanned technique",
                    "photo 1-4: brass-tone metal rings\/hardware, not hollow chrome or plastic"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: closure is buckle\/D-ring not turnlock, contrast stitching, strap attachment and proportions do not match City (9790), Willis (9927), Court (9870), Station (5130), or Cashin Saddle Bag; no serial decode possible",
                    "Era cannot be assigned to Coach timeline with no identifiers; bag itself looks old\/worn but maker unknown",
                    "Condition: Good to Fair; visible scuffs, patina, edge wear, flap creasing and surface marks (photo 1-4), strap intact but worn, interior and bottom not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.08,
                "vintage_probability": 0.65
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 24208,
            "output_tokens": 1064,
            "total_tokens": 25272,
            "estimated_cost_usd": 0.012237
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 25177,
            "output_tokens": 1706,
            "total_tokens": 26883,
            "estimated_cost_usd": 0.0064
        }
    ]
}