Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.48,
    "vintage_probability": 0.625,
    "authenticity_confidence": 0.36,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.48,
    "confidence": 0.54,
    "recommended_max_bid": 25,
    "estimated_resale_low": 27.5,
    "estimated_resale_high": 77.5,
    "possible_models": [
        "City Bag (9790)",
        "Court (9870)",
        "Station (5130)"
    ],
    "positive_evidence": [
        "photo 1: leather-looking black flap shoulder\/crossbody handbag with a turnlock closure and brass-tone strap hardware",
        "photo 3: approximately 12 inches wide, broadly compatible with some vintage Coach flap styles",
        "photo 7: detachable-looking strap connections and brass-tone clips are construction details seen on some vintage Coach bags",
        "photo 1: black leather flap crossbody silhouette with center turnlock matches vintage Coach classics",
        "photo 2: turnlock geometry - small round brass plate with slim rounded tab, unmarked, consistent with vintage Coach",
        "photo 1-5: smooth matte-to-satin black leather with soft patina consistent with glove-tanned cowhide",
        "photo 1,6: brass-tone buckle-adjustable strap and D-ring attachments consistent with vintage construction",
        "photo 3: measured width ~11 in consistent with City Bag scale"
    ],
    "negative_evidence": [
        "photo 2: turnlock is a simple oval plate with a prominent upright tab and does not clearly establish Coach manufacture",
        "photo 1: no visible Coach wordmark, horse-and-carriage mark, hangtag, or other brand identifier",
        "photos 1, 3, 4, 5: glossy, uniformly finished leather and multi-compartment construction are compatible with many unbranded or other-brand bags",
        "photos 1, 3, 4, 5: stitching and edge construction appear generic rather than conclusively Coach",
        "photo 1-6: no COACH wordmark, horse-and-carriage, or creed patch legible in any view",
        "photo 1-6: no hangtag visible",
        "photo 1-6: interior\/lining not shown so unlined suede-back cannot be confirmed"
    ],
    "missing_information": [
        "photo 1: interior is not shown; request empty interior, all pockets, and back wall",
        "photo 1: no creed patch or country line is visible; request a straight-on close-up of every interior leather or fabric label",
        "photo 2: request close-ups of the turnlock front and back, strap clips, and any zipper pulls for stamps",
        "photo 1: bottom, corners, and side construction are only partly visible",
        "photo 7: strap length and buckle holes are not fully documented",
        "photo 1-6: interior views not shown, creed patch not shown - need straight-on creed in raking light",
        "photo 1-6: bottom and all four corners not shown",
        "photo 1-6: hangtag both faces and chain not shown",
        "photo 2: turnlock back plate and keeper not shown",
        "photo 1,6: strap buckle holes, fold point and clip ends close-up not shown",
        "photo 1-6: zipper brand stamp and hardware engravings not shown"
    ],
    "authenticity_concerns": [
        "photos 1-7: no Coach identifier is visible, so this may be an unbranded Coach-style lookalike rather than Coach",
        "photos 1-5: the hardware and silhouette are generic enough that a Coach attribution from construction alone would be speculative"
    ],
    "possible_model_reasoning": [
        "City Bag (9790) is a loose silhouette possibility because the bag has a flap, turnlock, crossbody strap, and roughly 12-inch width; no Coach identifier is visible to confirm it.",
        "Court (9870) is another loose possibility based on the flap-and-turnlock shape and crossbody format, but the dimensions and construction are not sufficient for a confident match.",
        "Era is unknown because no creed, serial, country line, lining, or zipper branding is visible; the styling could be vintage or a later lookalike.",
        "Condition: Very Good provisionally; leather appears intact with light creasing and no obvious tears in photos 1, 3, 4, and 5, but the interior, bottom, odor, and strap condition are unknown.",
        "No creed or serial visible so no decode possible; era from construction only: solid brass hardware + smooth glove-tanned-like leather + flap-turnlock suggests 1980s-1990s US era but lining unconfirmed so era unknown",
        "City Bag (9790) fits best: flap + turnlock, adjustable crossbody, ~11x8x3.5 in; photo 3 shows ~11 in width",
        "Station (5130) less likely due to size: Station ~9x9 in, this bag wider than tall",
        "Condition: Very Good; exterior leather uniform with light creasing and lightly dulled brass (photo 1,2), no interior or bottom shown so capped at Very Good and lining unknown"
    ],
    "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 2: brass-tone oval turnlock plate with a vertical rounded tab; photos 1, 5, 7 show matching brass-tone strap rings\/clips; no engravings are visible",
        "leather_description": "photos 1, 3, 4, 5: black smooth\/glossy leather-looking exterior with light creasing; exact leather type and authenticity are not determinable",
        "lining_description": "not_visible",
        "strap_construction": "photos 1 and 7: long narrow adjustable-looking shoulder\/crossbody strap with brass-tone clip hardware; full adjustment construction is not visible",
        "stitching_description": "photos 1, 3, 4, 5: visible perimeter stitching is generally even, but interior and stress-point stitching are not shown"
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0106,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.34,
                "vintage_probability": 0.55,
                "authenticity_confidence": 0.24,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.34,
                "estimated_era": "unknown",
                "possible_models": [
                    "City Bag (9790)",
                    "Court (9870)"
                ],
                "positive_evidence": [
                    "photo 1: leather-looking black flap shoulder\/crossbody handbag with a turnlock closure and brass-tone strap hardware",
                    "photo 3: approximately 12 inches wide, broadly compatible with some vintage Coach flap styles",
                    "photo 7: detachable-looking strap connections and brass-tone clips are construction details seen on some vintage Coach bags"
                ],
                "negative_evidence": [
                    "photo 2: turnlock is a simple oval plate with a prominent upright tab and does not clearly establish Coach manufacture",
                    "photo 1: no visible Coach wordmark, horse-and-carriage mark, hangtag, or other brand identifier",
                    "photos 1, 3, 4, 5: glossy, uniformly finished leather and multi-compartment construction are compatible with many unbranded or other-brand bags",
                    "photos 1, 3, 4, 5: stitching and edge construction appear generic rather than conclusively Coach"
                ],
                "missing_information": [
                    "photo 1: interior is not shown; request empty interior, all pockets, and back wall",
                    "photo 1: no creed patch or country line is visible; request a straight-on close-up of every interior leather or fabric label",
                    "photo 2: request close-ups of the turnlock front and back, strap clips, and any zipper pulls for stamps",
                    "photo 1: bottom, corners, and side construction are only partly visible",
                    "photo 7: strap length and buckle holes are not fully documented"
                ],
                "authenticity_concerns": [
                    "photos 1-7: no Coach identifier is visible, so this may be an unbranded Coach-style lookalike rather than Coach",
                    "photos 1-5: the hardware and silhouette are generic enough that a Coach attribution from construction alone would be speculative"
                ],
                "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 2: brass-tone oval turnlock plate with a vertical rounded tab; photos 1, 5, 7 show matching brass-tone strap rings\/clips; no engravings are visible",
                    "leather_description": "photos 1, 3, 4, 5: black smooth\/glossy leather-looking exterior with light creasing; exact leather type and authenticity are not determinable",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1 and 7: long narrow adjustable-looking shoulder\/crossbody strap with brass-tone clip hardware; full adjustment construction is not visible",
                    "stitching_description": "photos 1, 3, 4, 5: visible perimeter stitching is generally even, but interior and stress-point stitching are not shown"
                },
                "possible_model_reasoning": [
                    "City Bag (9790) is a loose silhouette possibility because the bag has a flap, turnlock, crossbody strap, and roughly 12-inch width; no Coach identifier is visible to confirm it.",
                    "Court (9870) is another loose possibility based on the flap-and-turnlock shape and crossbody format, but the dimensions and construction are not sufficient for a confident match.",
                    "Era is unknown because no creed, serial, country line, lining, or zipper branding is visible; the styling could be vintage or a later lookalike.",
                    "Condition: Very Good provisionally; leather appears intact with light creasing and no obvious tears in photos 1, 3, 4, and 5, but the interior, bottom, odor, and strap condition are unknown."
                ],
                "confidence": 0.58,
                "recommended_max_bid": 15,
                "estimated_resale_low": 10,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.48,
                "coach_probability": 0.62,
                "confidence": 0.5,
                "estimated_era": "unknown",
                "estimated_resale_high": 110,
                "estimated_resale_low": 45,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1-6: interior views not shown, creed patch not shown - need straight-on creed in raking light",
                    "photo 1-6: bottom and all four corners not shown",
                    "photo 1-6: hangtag both faces and chain not shown",
                    "photo 2: turnlock back plate and keeper not shown",
                    "photo 1,6: strap buckle holes, fold point and clip ends close-up not shown",
                    "photo 1-6: zipper brand stamp and hardware engravings not shown"
                ],
                "negative_evidence": [
                    "photo 1-6: no COACH wordmark, horse-and-carriage, or creed patch legible in any view",
                    "photo 1-6: no hangtag visible",
                    "photo 1-6: interior\/lining not shown so unlined suede-back cannot be confirmed"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone turnlock with small round plate and slim rounded tab (photo 2); brass-tone buckle on strap (photo 1,6) and brass-tone D-rings at strap anchors (photo 3); tone consistent, no COACH engraving visible, geometry consistent with vintage Coach turnlock",
                    "leather_description": "black smooth leather with low-satin sheen and soft folds, appearance consistent with glove-tanned cowhide (photo 1-5)",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even straight stitching matched to leather along flap edge (photo 2); side and bottom seams even (photo 1,4,5)",
                    "strap_construction": "long thin flat leather crossbody strap, buckle-adjustable (photo 1,6), attached via D-rings at sides (photo 3)",
                    "turnlock_present": true
                },
                "positive_evidence": [
                    "photo 1: black leather flap crossbody silhouette with center turnlock matches vintage Coach classics",
                    "photo 2: turnlock geometry - small round brass plate with slim rounded tab, unmarked, consistent with vintage Coach",
                    "photo 1-5: smooth matte-to-satin black leather with soft patina consistent with glove-tanned cowhide",
                    "photo 1,6: brass-tone buckle-adjustable strap and D-ring attachments consistent with vintage construction",
                    "photo 3: measured width ~11 in consistent with City Bag scale"
                ],
                "possible_model_reasoning": [
                    "No creed or serial visible so no decode possible; era from construction only: solid brass hardware + smooth glove-tanned-like leather + flap-turnlock suggests 1980s-1990s US era but lining unconfirmed so era unknown",
                    "City Bag (9790) fits best: flap + turnlock, adjustable crossbody, ~11x8x3.5 in; photo 3 shows ~11 in width",
                    "Station (5130) less likely due to size: Station ~9x9 in, this bag wider than tall",
                    "Condition: Very Good; exterior leather uniform with light creasing and lightly dulled brass (photo 1,2), no interior or bottom shown so capped at Very Good and lining unknown"
                ],
                "possible_models": [
                    "City Bag (9790)",
                    "Station (5130)"
                ],
                "recommended_max_bid": 35,
                "seller_misidentification_probability": 0.62,
                "vintage_probability": 0.7
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28776,
            "output_tokens": 963,
            "total_tokens": 29739,
            "estimated_cost_usd": 0.013822
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30090,
            "output_tokens": 1700,
            "total_tokens": 31790,
            "estimated_cost_usd": 0.007378
        }
    ]
}