Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.48,
    "vintage_probability": 0.715,
    "authenticity_confidence": 0.38,
    "image_quality_score": 0.775,
    "seller_misidentification_probability": 0.48,
    "confidence": 0.65,
    "recommended_max_bid": 30,
    "estimated_resale_low": 45,
    "estimated_resale_high": 105,
    "possible_models": [
        "Willis (9927)",
        "Station (5130)",
        "Court (9870)"
    ],
    "positive_evidence": [
        "photo 1: structured brown leather handbag with a flap closure, top handle, adjustable crossbody strap, and brass-tone hardware resembles the general construction of some vintage Coach bags.",
        "photo 3: interior appears suede-like and includes a zippered compartment, features that can occur on vintage leather Coach styles.",
        "photo 5: substantial brass-tone swivel clips and strap hardware are broadly compatible with vintage construction.",
        "photo 1: structured flap crossbody silhouette with front turnlock, top handle plus detachable long strap matches Coach Willis \/ Station \/ Court family",
        "photo 1, photo 4: slim elegant turnlock tab and keeper geometry consistent with vintage Coach turnlock, not chunky lookalike type",
        "photo 3, photo 4, photo 6: unlined suede-back glove-tanned interior with interior zip pocket under flap - classic vintage Coach construction",
        "photo 2: smooth glove-tanned leather with natural grain and baseball-glove patina in British Tan \/ brown tone, classic Coach color and hide",
        "photo 5: solid brass dogleash strap clips, heavy unplated look consistent with 1980s-1990s Coach hardware",
        "photo 2, photo 5: top-handle attachment via brass loops and leather wraps consistent with Willis \/ Station construction"
    ],
    "negative_evidence": [
        "photo 1: no visible Coach wordmark, horse-and-carriage mark, or leather hangtag.",
        "photos 3, 4, and 6: no clearly visible sewn Coach creed patch or fabric identification tag in the shown interior areas.",
        "photo 1: the ornate central closure and overall briefcase-like construction do not provide a distinctive match to a specific documented Coach silhouette.",
        "photo 5: hardware geometry is not clearly the elegant standard vintage Coach turnlock design, and no period-appropriate Coach stamping is visible.",
        "photo 3, photo 4, photo 6: no creed patch, COACH wordmark, or serial visible in any interior view shown",
        "all photos: no COACH wordmark or horse-and-carriage legibly visible on bag, hardware, or strap",
        "all photos: no leather hangtag visible",
        "photo 1-6: no bottom view, so base feet, corner wear, and bottom construction unknown"
    ],
    "missing_information": [
        "A straight-on close-up of every interior wall and pocket, especially any small leather creed patch.",
        "Close-ups of the closure, zipper pull, and all hardware for possible maker stamps.",
        "A full back, bottom, side, and corner view.",
        "Full strap view including buckle holes and attachment construction.",
        "Seller-stated dimensions and a photo of any removable tag or label.",
        "photo of creed patch straight-on in raking light to confirm maker and serial",
        "photo of interior back wall and slip pocket where creed should sit",
        "photo of bottom and all four corners to grade wear",
        "photo of hangtag both faces if present",
        "close-up of turnlock front and back plate and zipper pull stamp",
        "seller-stated dimensions for scale to separate Willis vs Station vs Court"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible despite multiple interior and exterior views; this may be an unbranded vintage leather bag or a Coach-style lookalike.",
        "The visible construction does not establish a consistent Coach model or production era."
    ],
    "possible_model_reasoning": [
        "No specific Coach model can be assigned from the visible features because the creed, style number, and Coach branding are absent.",
        "The top handle, flap, crossbody strap, and structured body are only broadly compatible with several vintage leather handbag families and are not distinctive enough for a model identification.",
        "Condition: Very Good based on visible intact leather, functioning-looking hardware, and moderate creasing; interior condition is only partially shown and odor or hidden damage cannot be assessed.",
        "Willis (9927): structured square flap with turnlock plus top handle over dowel plus detachable crossbody on clips; size and handle in photo 1-2 fit; 1990s production fits unlined brass construction",
        "Station (5130): flap turnlock with top handle and removable long strap on lobster clips, introduced 1983; fits photo 1 and photo 5, but base feet not verified - bottom view missing",
        "Court (9870): soft flap turnlock with top handle plus crossbody; possible but bag looks more structured\/square than typical Court",
        "No serial decode possible - creed not shown; era inferred from unlined glove-tanned + solid brass + Talon\/YKK-type zip, pointing to US vintage era, not definitive",
        "Condition: Very Good capped - leather uniform with light patina (photo 1-2), corners and bottom not shown so cannot grade higher, interior looks clean (photo 3-6), strap fold and hardware show light age only"
    ],
    "estimated_era": "unknown",
    "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 1: brass-tone central turning clasp and matching strap clips; photo 5: substantial swivel clasp and ring hardware, with no legible maker markings.",
        "leather_description": "photos 1, 2, and 4: smooth medium-brown leather exterior with visible natural grain and moderate surface creasing; interior appears suede-like.",
        "lining_description": "photos 3, 4, and 6: suede-like interior panels with a darker leather or fabric-lined zippered compartment; exact material and full lining construction are not confirmed.",
        "strap_construction": "photos 1 and 5: long adjustable leather shoulder strap attached with brass-tone swivel clips; short leather top handle attached through metal loops.",
        "stitching_description": "photos 2, 4, and 5: generally even tonal stitching, with visible reinforced stitching around the handle, flap, and strap attachments."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0123,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.32,
                "vintage_probability": 0.68,
                "authenticity_confidence": 0.24,
                "image_quality_score": 0.87,
                "seller_misidentification_probability": 0.32,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: structured brown leather handbag with a flap closure, top handle, adjustable crossbody strap, and brass-tone hardware resembles the general construction of some vintage Coach bags.",
                    "photo 3: interior appears suede-like and includes a zippered compartment, features that can occur on vintage leather Coach styles.",
                    "photo 5: substantial brass-tone swivel clips and strap hardware are broadly compatible with vintage construction."
                ],
                "negative_evidence": [
                    "photo 1: no visible Coach wordmark, horse-and-carriage mark, or leather hangtag.",
                    "photos 3, 4, and 6: no clearly visible sewn Coach creed patch or fabric identification tag in the shown interior areas.",
                    "photo 1: the ornate central closure and overall briefcase-like construction do not provide a distinctive match to a specific documented Coach silhouette.",
                    "photo 5: hardware geometry is not clearly the elegant standard vintage Coach turnlock design, and no period-appropriate Coach stamping is visible."
                ],
                "missing_information": [
                    "A straight-on close-up of every interior wall and pocket, especially any small leather creed patch.",
                    "Close-ups of the closure, zipper pull, and all hardware for possible maker stamps.",
                    "A full back, bottom, side, and corner view.",
                    "Full strap view including buckle holes and attachment construction.",
                    "Seller-stated dimensions and a photo of any removable tag or label."
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible despite multiple interior and exterior views; this may be an unbranded vintage leather bag or a Coach-style lookalike.",
                    "The visible construction does not establish a consistent Coach model or production 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": true,
                    "hangtag_present": false,
                    "hardware_description": "photo 1: brass-tone central turning clasp and matching strap clips; photo 5: substantial swivel clasp and ring hardware, with no legible maker markings.",
                    "leather_description": "photos 1, 2, and 4: smooth medium-brown leather exterior with visible natural grain and moderate surface creasing; interior appears suede-like.",
                    "lining_description": "photos 3, 4, and 6: suede-like interior panels with a darker leather or fabric-lined zippered compartment; exact material and full lining construction are not confirmed.",
                    "strap_construction": "photos 1 and 5: long adjustable leather shoulder strap attached with brass-tone swivel clips; short leather top handle attached through metal loops.",
                    "stitching_description": "photos 2, 4, and 5: generally even tonal stitching, with visible reinforced stitching around the handle, flap, and strap attachments."
                },
                "possible_model_reasoning": [
                    "No specific Coach model can be assigned from the visible features because the creed, style number, and Coach branding are absent.",
                    "The top handle, flap, crossbody strap, and structured body are only broadly compatible with several vintage leather handbag families and are not distinctive enough for a model identification.",
                    "Condition: Very Good based on visible intact leather, functioning-looking hardware, and moderate creasing; interior condition is only partially shown and odor or hidden damage cannot be assessed."
                ],
                "confidence": 0.72,
                "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": 0.52,
                "coach_probability": 0.64,
                "confidence": 0.58,
                "estimated_era": "1985-1993 (US creed)",
                "estimated_resale_high": 150,
                "estimated_resale_low": 70,
                "image_quality_score": 0.68,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of creed patch straight-on in raking light to confirm maker and serial",
                    "photo of interior back wall and slip pocket where creed should sit",
                    "photo of bottom and all four corners to grade wear",
                    "photo of hangtag both faces if present",
                    "close-up of turnlock front and back plate and zipper pull stamp",
                    "seller-stated dimensions for scale to separate Willis vs Station vs Court"
                ],
                "negative_evidence": [
                    "photo 3, photo 4, photo 6: no creed patch, COACH wordmark, or serial visible in any interior view shown",
                    "all photos: no COACH wordmark or horse-and-carriage legibly visible on bag, hardware, or strap",
                    "all photos: no leather hangtag visible",
                    "photo 1-6: no bottom view, so base feet, corner wear, and bottom construction unknown"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "solid brass-tone turnlock with slim rounded tab, brass top-handle loops, brass dogleash \/ lobster strap clips (photo 5); warm dull aged tone consistent with vintage solid brass, no COACH engraving visible, no mixed tones seen",
                    "leather_description": "medium brown smooth glove-tanned cowhide with filled grain and satin patina (photo 1, photo 2); unlined suede-back interior visible (photo 3, photo 4, photo 6) consistent with vintage US-era classics",
                    "lining_description": "unlined - raw suede side of glove-tanned leather with interior zip pocket (photo 3, photo 6); no fabric lining seen",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even straight tone-matched stitching at flap and pocket edges (photo 4); no mismatched thread or open seams visible in shown views",
                    "strap_construction": "top handle wrapped over frame with brass end loops (photo 2) plus detachable long shoulder strap on brass dogleash clips (photo 1, photo 5); buckle adjustment not shown",
                    "turnlock_present": true
                },
                "positive_evidence": [
                    "photo 1: structured flap crossbody silhouette with front turnlock, top handle plus detachable long strap matches Coach Willis \/ Station \/ Court family",
                    "photo 1, photo 4: slim elegant turnlock tab and keeper geometry consistent with vintage Coach turnlock, not chunky lookalike type",
                    "photo 3, photo 4, photo 6: unlined suede-back glove-tanned interior with interior zip pocket under flap - classic vintage Coach construction",
                    "photo 2: smooth glove-tanned leather with natural grain and baseball-glove patina in British Tan \/ brown tone, classic Coach color and hide",
                    "photo 5: solid brass dogleash strap clips, heavy unplated look consistent with 1980s-1990s Coach hardware",
                    "photo 2, photo 5: top-handle attachment via brass loops and leather wraps consistent with Willis \/ Station construction"
                ],
                "possible_model_reasoning": [
                    "Willis (9927): structured square flap with turnlock plus top handle over dowel plus detachable crossbody on clips; size and handle in photo 1-2 fit; 1990s production fits unlined brass construction",
                    "Station (5130): flap turnlock with top handle and removable long strap on lobster clips, introduced 1983; fits photo 1 and photo 5, but base feet not verified - bottom view missing",
                    "Court (9870): soft flap turnlock with top handle plus crossbody; possible but bag looks more structured\/square than typical Court",
                    "No serial decode possible - creed not shown; era inferred from unlined glove-tanned + solid brass + Talon\/YKK-type zip, pointing to US vintage era, not definitive",
                    "Condition: Very Good capped - leather uniform with light patina (photo 1-2), corners and bottom not shown so cannot grade higher, interior looks clean (photo 3-6), strap fold and hardware show light age only"
                ],
                "possible_models": [
                    "Willis (9927)",
                    "Station (5130)",
                    "Court (9870)"
                ],
                "recommended_max_bid": 45,
                "seller_misidentification_probability": 0.64,
                "vintage_probability": 0.75
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18099,
            "output_tokens": 1037,
            "total_tokens": 19136,
            "estimated_cost_usd": 0.009728
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18650,
            "output_tokens": 1807,
            "total_tokens": 20457,
            "estimated_cost_usd": 0.005176
        }
    ]
}