Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.18,
    "vintage_probability": 0.615,
    "authenticity_confidence": 0.155,
    "image_quality_score": 0.685,
    "seller_misidentification_probability": 0.18,
    "confidence": 0.635,
    "recommended_max_bid": 15,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Small leather crossbody\/saddle-style silhouette with a burgundy smooth leather exterior.",
        "photo 2: Interior appears suede or suede-like and the bag uses warm-tone metal snap hardware.",
        "photo 3: Construction and coloration are compatible with some older leather handbags.",
        "photo 1: small leather flap crossbody in burgundy with brass-tone hardware, population where misidentified vintage hides",
        "photo 2, photo 5: unlined suede-back interior with raw suede flap underside, consistent with vintage glove-tanned construction",
        "photo 1, photo 2: smooth leather with vintage patina and simple saddle shape compatible with 1970s style"
    ],
    "negative_evidence": [
        "photo 1: No legible COACH wordmark, horse-and-carriage mark, or Coach hangtag is visible.",
        "photo 2: The closure is an oval snap rather than a recognizable Coach turnlock.",
        "photo 2: The interior and compartment construction appear generic and do not show a Coach creed patch.",
        "photo 4: The zipper hardware is not visibly branded and no Coach-specific identifier is shown.",
        "photo 7: Seller-stated 60s\/70s dating is unverified and does not establish Coach manufacture.",
        "photo 1, photo 2, photo 6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 2: closure is oval brass snap\/button, not Coach turnlock with wide back plate and slim turning tab",
        "photo 4: thin flat strap with snap-button adjustment, not Coach buckle-adjustable or dogleash-clip construction",
        "photo 3: interior zip pocket with grey fabric lining visible, not typical unlined glove-tanned classic layout with Talon\/YKK and creed on back wall",
        "photo 1, photo 6: ~7-8 in wide saddle silhouette with snap flap does not match catalog Dinky (9375) or other turnlock classics"
    ],
    "missing_information": [
        "photo 2: A complete, well-lit view of every interior wall and pocket, including any sewn-in leather creed or fabric label.",
        "photo 3: Close-up photographs of the snap, zipper pull, strap attachment hardware, and all hardware markings.",
        "photo 1: Clear front, back, side, bottom, and corner views outside the mannequin.",
        "photo 5: Full strap, buckle holes, attachment points, and underside details.",
        "photo 6: Seller-stated material composition and dimensions; the listing does not provide a written description.",
        "photo of interior back wall \/ slip pocket straight-on for creed patch in raking light",
        "close-up of hardware stamps, snap\/turn assembly front and back, and zipper pull brand",
        "both faces of any hangtag and chain if present",
        "front, back, bottom with corners, and emptied interior views",
        "strap full length, buckle holes and attachment points",
        "seller-stated dimensions and weight"
    ],
    "authenticity_concerns": [
        "photo 1: The bag has no visible Coach identifier and its generic snap-front design is common among unbranded vintage leather bags.",
        "photo 2: The visible construction does not provide the creed, serial, hangtag, or model-specific details expected for a confident Coach attribution."
    ],
    "possible_model_reasoning": [
        "The silhouette is not a strong match for the listed classic Coach turnlock models because it uses an oval snap closure and lacks a visible Coach creed or other identifier.",
        "A pre-creed or early vintage Coach bag cannot be completely excluded from photos, but no Cashin-era label, cartouche, distinctive Coach hardware, or period-specific feature is visible.",
        "Condition appears Good: visible surface wear and scuffing around the strap attachment and edges (photos 5-6); interior appears intact, but odor, mold, and the full bottom are unknown.",
        "No Coach model fits: snap closure vs Coach turnlock, no creed\/wordmark\/hangtag, thin snap-adjust strap vs Coach hardware; Dinky (9375) and Pocket Purse considered but rejected for closure and lack of identifiers",
        "Condition: Very Good to Good; leather shows patina and strap edge wear in photo 4 but no major tears visible; corners\/bottom and full interior not shown so grade capped"
    ],
    "estimated_era": "unknown",
    "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 1-2: Warm gold-tone oval snap closures; no visible Coach engraving. Zipper hardware is visible but unbranded.",
        "leather_description": "photo 1-2: Burgundy\/oxblood smooth leather exterior with apparent wear and a suede or suede-like tan interior.",
        "lining_description": "photo 2-6: Tan suede-like interior is visible; no branded lining or fabric label is shown.",
        "strap_construction": "photo 1 and photo 5: Long narrow adjustable-looking leather shoulder strap attached at the sides; buckle and attachment details are not fully shown.",
        "stitching_description": "photo 2-6: Visible perimeter stitching is generally straight and fairly even, but close-up coverage of all seams is incomplete."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0038,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.18,
                "vintage_probability": 0.58,
                "authenticity_confidence": 0.16,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.18,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Small leather crossbody\/saddle-style silhouette with a burgundy smooth leather exterior.",
                    "photo 2: Interior appears suede or suede-like and the bag uses warm-tone metal snap hardware.",
                    "photo 3: Construction and coloration are compatible with some older leather handbags."
                ],
                "negative_evidence": [
                    "photo 1: No legible COACH wordmark, horse-and-carriage mark, or Coach hangtag is visible.",
                    "photo 2: The closure is an oval snap rather than a recognizable Coach turnlock.",
                    "photo 2: The interior and compartment construction appear generic and do not show a Coach creed patch.",
                    "photo 4: The zipper hardware is not visibly branded and no Coach-specific identifier is shown.",
                    "photo 7: Seller-stated 60s\/70s dating is unverified and does not establish Coach manufacture."
                ],
                "missing_information": [
                    "photo 2: A complete, well-lit view of every interior wall and pocket, including any sewn-in leather creed or fabric label.",
                    "photo 3: Close-up photographs of the snap, zipper pull, strap attachment hardware, and all hardware markings.",
                    "photo 1: Clear front, back, side, bottom, and corner views outside the mannequin.",
                    "photo 5: Full strap, buckle holes, attachment points, and underside details.",
                    "photo 6: Seller-stated material composition and dimensions; the listing does not provide a written description."
                ],
                "authenticity_concerns": [
                    "photo 1: The bag has no visible Coach identifier and its generic snap-front design is common among unbranded vintage leather bags.",
                    "photo 2: The visible construction does not provide the creed, serial, hangtag, or model-specific details expected for a confident Coach attribution."
                ],
                "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 1-2: Warm gold-tone oval snap closures; no visible Coach engraving. Zipper hardware is visible but unbranded.",
                    "leather_description": "photo 1-2: Burgundy\/oxblood smooth leather exterior with apparent wear and a suede or suede-like tan interior.",
                    "lining_description": "photo 2-6: Tan suede-like interior is visible; no branded lining or fabric label is shown.",
                    "strap_construction": "photo 1 and photo 5: Long narrow adjustable-looking leather shoulder strap attached at the sides; buckle and attachment details are not fully shown.",
                    "stitching_description": "photo 2-6: Visible perimeter stitching is generally straight and fairly even, but close-up coverage of all seams is incomplete."
                },
                "possible_model_reasoning": [
                    "The silhouette is not a strong match for the listed classic Coach turnlock models because it uses an oval snap closure and lacks a visible Coach creed or other identifier.",
                    "A pre-creed or early vintage Coach bag cannot be completely excluded from photos, but no Cashin-era label, cartouche, distinctive Coach hardware, or period-specific feature is visible.",
                    "Condition appears Good: visible surface wear and scuffing around the strap attachment and edges (photos 5-6); interior appears intact, but odor, mold, and the full bottom are unknown."
                ],
                "confidence": 0.72,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 50
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.15,
                "coach_probability": 0.18,
                "confidence": 0.55,
                "estimated_era": "unknown",
                "estimated_resale_high": 45,
                "estimated_resale_low": 20,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket straight-on for creed patch in raking light",
                    "close-up of hardware stamps, snap\/turn assembly front and back, and zipper pull brand",
                    "both faces of any hangtag and chain if present",
                    "front, back, bottom with corners, and emptied interior views",
                    "strap full length, buckle holes and attachment points",
                    "seller-stated dimensions and weight"
                ],
                "negative_evidence": [
                    "photo 1, photo 2, photo 6: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 2: closure is oval brass snap\/button, not Coach turnlock with wide back plate and slim turning tab",
                    "photo 4: thin flat strap with snap-button adjustment, not Coach buckle-adjustable or dogleash-clip construction",
                    "photo 3: interior zip pocket with grey fabric lining visible, not typical unlined glove-tanned classic layout with Talon\/YKK and creed on back wall",
                    "photo 1, photo 6: ~7-8 in wide saddle silhouette with snap flap does not match catalog Dinky (9375) or other turnlock classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone oval snap\/button closure on flap, small brass-tone zipper on interior pocket; no COACH engraving visible; tone consistent but geometry is snap, not turnlock",
                    "leather_description": "burgundy\/oxblood smooth leather with sheen and patina, suede-back visible on flap underside; looks like vintage glove-type leather but grain and thickness not fully assessable",
                    "lining_description": "unlined suede-back interior in tan\/camel; interior zip pocket shows grey fabric inside pocket in photo 3",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched edge stitching visible on flap in photo 2; even but close-up detail limited",
                    "strap_construction": "thin flat burgundy leather crossbody strap, snap-button length adjustment seen in photo 4, attachment detail not shown",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: small leather flap crossbody in burgundy with brass-tone hardware, population where misidentified vintage hides",
                    "photo 2, photo 5: unlined suede-back interior with raw suede flap underside, consistent with vintage glove-tanned construction",
                    "photo 1, photo 2: smooth leather with vintage patina and simple saddle shape compatible with 1970s style"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: snap closure vs Coach turnlock, no creed\/wordmark\/hangtag, thin snap-adjust strap vs Coach hardware; Dinky (9375) and Pocket Purse considered but rejected for closure and lack of identifiers",
                    "Condition: Very Good to Good; leather shows patina and strap edge wear in photo 4 but no major tears visible; corners\/bottom and full interior not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.18,
                "vintage_probability": 0.65
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 27798,
            "output_tokens": 882,
            "total_tokens": 28680,
            "estimated_cost_usd": 0.013236
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 28643,
            "output_tokens": 1517,
            "total_tokens": 30160,
            "estimated_cost_usd": 0.006942
        }
    ]
}