Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.08,
    "vintage_probability": 0.46,
    "authenticity_confidence": 0.075,
    "image_quality_score": 0.715,
    "seller_misidentification_probability": 0.08,
    "confidence": 0.72,
    "recommended_max_bid": 15,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 37.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather-looking navy shoulder bag with gold-tone hardware and a conventional handbag silhouette.",
        "photo 3: construction appears to be a finished leather handbag rather than a wallet, pouch, or non-bag item.",
        "photo 1-3: genuine leather shoulder flap bag in navy, consistent with 1980s-90s vintage period claimed",
        "photo 1-4: brass-tone hardware color is compatible with vintage era, not modern silver\/nickel",
        "photo 5-6: size ~12-13 in wide x ~7 in tall per tape, plausible handbag scale"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or leather hangtag.",
        "photo 1: the central gold U-shaped fitting does not visibly match a classic Coach turnlock geometry.",
        "photo 1: the thin strap and decorative central ring do not closely match the listed classic vintage Coach silhouettes.",
        "photo 4: back is plain and shows no exterior Coach identifier.",
        "photo 6: seller's stated black cotton lining is not independently visible in the provided photos.",
        "photo 1-4: closure is brass-tone D-ring loop, not Coach turnlock geometry",
        "photo 4: plain back with center seam, no exterior slip pocket or catalog Coach feature",
        "no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible in any of 6 photos",
        "seller states Lined in black cotton fabric and No brand tags - vintage Coach classics are unlined suede-back glove-tanned",
        "photo 3-4: thin detachable strap on small gold-tone clips, not Coach dogleash\/lobster or buckle-adjustable classic strap",
        "silhouette with pleated flap tab does not match any Classic glove-tanned catalog style"
    ],
    "missing_information": [
        "Straight-on interior photo with the bag emptied, especially the back wall and any sewn leather creed patch.",
        "Close-up photos of the central closure, strap clips, and any zipper or hardware markings.",
        "Close-up of all interior labels, fabric tags, and stamps.",
        "Bottom, corners, strap attachment points, and stitching close-ups.",
        "Seller-stated dimensions and any information about the origin or maker.",
        "photo of interior emptied and lining - seller states black cotton fabric lining but not shown",
        "creed patch straight-on in raking light - interior not shown at all",
        "close-up of hardware stamps, zipper pull brand, and Made-in line",
        "both faces of any hangtag or brand tag - seller states No brand tags",
        "bottom and corners close-up and strap ends\/buckle holes"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible despite clear, reasonably detailed exterior photos.",
        "The silhouette and central U-ring closure are generic and do not provide a strong Coach-specific model match.",
        "The seller's 1980s\/1990s dating is unverified; the lined construction and styling could be later than claimed."
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because no identifier or distinctive Coach construction is visible, and the closure\/silhouette do not closely match the catalog models.",
        "Condition appears approximately Very Good: visible creasing and soft wrinkling across the body, but no obvious holes, major corner loss, or broken hardware in the exterior photos. Interior condition and odor are unknown.",
        "No Coach model fits: D-ring flap with pleated tab, lined interior, and thin clip-on strap are inconsistent with City Bag (9790), Willis (9927), Court (9870), Dinky (9375) or other turnlock classics",
        "Era cannot be coded with no creed\/serial\/country visible; seller-stated 80s-90s and soft leather support vintage non-Coach but not verified",
        "Condition: appears Good to Very Good exterior with creasing and softening but no major wear visible; capped at Very Good with no interior, bottom, or strap detail shown"
    ],
    "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": "Gold-tone fittings are visible at the strap ends and a central U-shaped ring\/closure element; no Coach engraving is legible. photo 1.",
        "leather_description": "Smooth, soft-looking navy leather or leather-like material with visible creasing and a slight sheen; material cannot be confirmed from photos. photos 1-4.",
        "lining_description": "not_visible",
        "strap_construction": "Thin navy shoulder strap attached with small gold-tone clips. photos 3-6.",
        "stitching_description": "Visible perimeter and vertical stitching appears generally even, though close-up construction details are limited. photos 1-4."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0081,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.08,
                "vintage_probability": 0.32,
                "authenticity_confidence": 0.07,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather-looking navy shoulder bag with gold-tone hardware and a conventional handbag silhouette.",
                    "photo 3: construction appears to be a finished leather handbag rather than a wallet, pouch, or non-bag item."
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or leather hangtag.",
                    "photo 1: the central gold U-shaped fitting does not visibly match a classic Coach turnlock geometry.",
                    "photo 1: the thin strap and decorative central ring do not closely match the listed classic vintage Coach silhouettes.",
                    "photo 4: back is plain and shows no exterior Coach identifier.",
                    "photo 6: seller's stated black cotton lining is not independently visible in the provided photos."
                ],
                "missing_information": [
                    "Straight-on interior photo with the bag emptied, especially the back wall and any sewn leather creed patch.",
                    "Close-up photos of the central closure, strap clips, and any zipper or hardware markings.",
                    "Close-up of all interior labels, fabric tags, and stamps.",
                    "Bottom, corners, strap attachment points, and stitching close-ups.",
                    "Seller-stated dimensions and any information about the origin or maker."
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible despite clear, reasonably detailed exterior photos.",
                    "The silhouette and central U-ring closure are generic and do not provide a strong Coach-specific model match.",
                    "The seller's 1980s\/1990s dating is unverified; the lined construction and styling could be later than claimed."
                ],
                "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": "Gold-tone fittings are visible at the strap ends and a central U-shaped ring\/closure element; no Coach engraving is legible. photo 1.",
                    "leather_description": "Smooth, soft-looking navy leather or leather-like material with visible creasing and a slight sheen; material cannot be confirmed from photos. photos 1-4.",
                    "lining_description": "not_visible",
                    "strap_construction": "Thin navy shoulder strap attached with small gold-tone clips. photos 3-6.",
                    "stitching_description": "Visible perimeter and vertical stitching appears generally even, though close-up construction details are limited. photos 1-4."
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because no identifier or distinctive Coach construction is visible, and the closure\/silhouette do not closely match the catalog models.",
                    "Condition appears approximately Very Good: visible creasing and soft wrinkling across the body, but no obvious holes, major corner loss, or broken hardware in the exterior photos. Interior condition and odor are unknown."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 15,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.08,
                "coach_probability": 0.08,
                "confidence": 0.62,
                "estimated_era": "unknown",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior emptied and lining - seller states black cotton fabric lining but not shown",
                    "creed patch straight-on in raking light - interior not shown at all",
                    "close-up of hardware stamps, zipper pull brand, and Made-in line",
                    "both faces of any hangtag or brand tag - seller states No brand tags",
                    "bottom and corners close-up and strap ends\/buckle holes"
                ],
                "negative_evidence": [
                    "photo 1-4: closure is brass-tone D-ring loop, not Coach turnlock geometry",
                    "photo 4: plain back with center seam, no exterior slip pocket or catalog Coach feature",
                    "no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible in any of 6 photos",
                    "seller states Lined in black cotton fabric and No brand tags - vintage Coach classics are unlined suede-back glove-tanned",
                    "photo 3-4: thin detachable strap on small gold-tone clips, not Coach dogleash\/lobster or buckle-adjustable classic strap",
                    "silhouette with pleated flap tab does not match any Classic glove-tanned catalog style"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold\/brass-tone D-ring at front flap tab and small gold-tone strap end clips; tone bright plated look, no COACH engraving visible",
                    "leather_description": "navy blue smooth leather with soft drape and creasing, appears genuine leather but not clearly glove-tanned full-grain patina",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "center seam and flap edge stitching visible in photo 1-4, appears even but no close-up to assess thread match or stress points",
                    "strap_construction": "thin navy shoulder\/crossbody strap, detachable at small gold-tone clips, knotted at top in photos, no buckle adjustment or dogleash clips visible",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-3: genuine leather shoulder flap bag in navy, consistent with 1980s-90s vintage period claimed",
                    "photo 1-4: brass-tone hardware color is compatible with vintage era, not modern silver\/nickel",
                    "photo 5-6: size ~12-13 in wide x ~7 in tall per tape, plausible handbag scale"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: D-ring flap with pleated tab, lined interior, and thin clip-on strap are inconsistent with City Bag (9790), Willis (9927), Court (9870), Dinky (9375) or other turnlock classics",
                    "Era cannot be coded with no creed\/serial\/country visible; seller-stated 80s-90s and soft leather support vintage non-Coach but not verified",
                    "Condition: appears Good to Very Good exterior with creasing and softening but no major wear visible; capped at Very Good with no interior, bottom, or strap detail shown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.08,
                "vintage_probability": 0.6
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18107,
            "output_tokens": 793,
            "total_tokens": 18900,
            "estimated_cost_usd": 0.009146
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18660,
            "output_tokens": 1580,
            "total_tokens": 20240,
            "estimated_cost_usd": 0.004996
        }
    ]
}