Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.055,
    "vintage_probability": 0.56,
    "authenticity_confidence": 0.04,
    "image_quality_score": 0.73,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.72,
    "recommended_max_bid": 11,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 4: leather-like flap handbag with gold-tone chain strap and snap closures is compatible with a vintage accessory silhouette",
        "photo 5: compact structured shoulder-bag proportions and neat edge stitching are visible"
    ],
    "negative_evidence": [
        "photo 4: no Coach creed patch, wordmark, serial number, or country line is visible on the interior",
        "photo 5: exterior has no Coach wordmark, horse-and-carriage, or recognizable Coach hardware",
        "photo 4: gold chain strap and snap construction do not provide a specific Coach identifier and are common on generic vintage handbags",
        "photo 1: seller describes the item as vintage but does not identify Coach",
        "photo 4,6: closure is round magnetic snap, not Coach turnlock geometry",
        "photo 1-5: pointed petal\/heart flap silhouette matches no vintage Coach catalog style",
        "photo 4,6: interior appears self-lined smooth pink leather with no visible creed patch, no zip pocket, no unlined suede back",
        "photo 1-5: thin gold-tone chain strap with small swivel clasps, not Coach brass dogleash\/lobster or buckle-adjust leather strap",
        "photo 5: smooth glossy finished leather, not matte glove-tanned full-grain with natural grain",
        "photo 1-6: no COACH wordmark, horse-and-carriage, hangtag, or creed visible"
    ],
    "missing_information": [
        "Straight-on close-up of every interior wall and pocket for a possible creed or brand label",
        "Close-up of any interior fabric or leather tags and all hardware markings",
        "Bottom, side, and strap-attachment photos",
        "Seller-stated material composition and country of manufacture",
        "photo of interior wall\/pockets for creed patch or brand label - not shown",
        "close-up of hardware stamps on chain clasps and snap - not shown",
        "bottom, side and back views to assess construction and wear - not shown",
        "photo of any hangtag, wordmark, or made-in stamp - not shown"
    ],
    "authenticity_concerns": [
        "No visible Coach identifier supports treating this as an unbranded or lookalike bag rather than attributing it to Coach",
        "The flower-petal flap and chain strap are generic design features and cannot authenticate Coach"
    ],
    "possible_model_reasoning": [
        "No Coach model is assigned because the bag lacks a visible creed, serial, hangtag, wordmark, or distinctive Coach construction cue.",
        "The seller's claimed 1970s date is not verifiable from the photos; chain strap, glossy finish, and snap closure do not establish a Coach-era date.",
        "Condition: Very Good based on the visible clean exterior and intact-looking hardware, with minor blemishes noted by the seller; interior, bottom, odor, and hidden wear remain incompletely assessed.",
        "No Coach model match: petal flap + magnetic snap + chain strap inconsistent with City Bag, Dinky, Court, Willis and other 1970s-1990s classics which use turnlock and leather strap",
        "No hard identifiers: no creed, serial, wordmark, hangtag, or Talon\/YKK zip seen in any photo",
        "Construction points away from Coach: glossy leather, self-lined interior, plated chain, magnetic snap vs unlined glove-tanned, solid brass, turnlock",
        "Condition: Excellent to Very Good per seller; photos 1-5 show clean exterior with good color, no corner wear visible but bottom\/interior details not shown so 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 4: gold-tone snap closures and chain attachment hardware; photo 5: removable-looking gold-tone chain strap with small clasp components; no Coach engraving is visible",
        "leather_description": "photo 1: smooth, glossy pink material with leather-like appearance; exact leather versus coated or synthetic material is not determinable from these photos",
        "lining_description": "photo 4: smooth pink interior surface is visible; no fabric lining or brand label is visible",
        "strap_construction": "photo 5: narrow gold-tone chain strap attached at both sides with small clasp hardware",
        "stitching_description": "photos 4-6: perimeter stitching appears relatively even and machine-sewn; detailed stress-point construction is not fully visible"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0038,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.08,
                "vintage_probability": 0.62,
                "authenticity_confidence": 0.05,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 4: leather-like flap handbag with gold-tone chain strap and snap closures is compatible with a vintage accessory silhouette",
                    "photo 5: compact structured shoulder-bag proportions and neat edge stitching are visible"
                ],
                "negative_evidence": [
                    "photo 4: no Coach creed patch, wordmark, serial number, or country line is visible on the interior",
                    "photo 5: exterior has no Coach wordmark, horse-and-carriage, or recognizable Coach hardware",
                    "photo 4: gold chain strap and snap construction do not provide a specific Coach identifier and are common on generic vintage handbags",
                    "photo 1: seller describes the item as vintage but does not identify Coach"
                ],
                "missing_information": [
                    "Straight-on close-up of every interior wall and pocket for a possible creed or brand label",
                    "Close-up of any interior fabric or leather tags and all hardware markings",
                    "Bottom, side, and strap-attachment photos",
                    "Seller-stated material composition and country of manufacture"
                ],
                "authenticity_concerns": [
                    "No visible Coach identifier supports treating this as an unbranded or lookalike bag rather than attributing it to Coach",
                    "The flower-petal flap and chain strap are generic design features and cannot authenticate Coach"
                ],
                "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 4: gold-tone snap closures and chain attachment hardware; photo 5: removable-looking gold-tone chain strap with small clasp components; no Coach engraving is visible",
                    "leather_description": "photo 1: smooth, glossy pink material with leather-like appearance; exact leather versus coated or synthetic material is not determinable from these photos",
                    "lining_description": "photo 4: smooth pink interior surface is visible; no fabric lining or brand label is visible",
                    "strap_construction": "photo 5: narrow gold-tone chain strap attached at both sides with small clasp hardware",
                    "stitching_description": "photos 4-6: perimeter stitching appears relatively even and machine-sewn; detailed stress-point construction is not fully visible"
                },
                "possible_model_reasoning": [
                    "No Coach model is assigned because the bag lacks a visible creed, serial, hangtag, wordmark, or distinctive Coach construction cue.",
                    "The seller's claimed 1970s date is not verifiable from the photos; chain strap, glossy finish, and snap closure do not establish a Coach-era date.",
                    "Condition: Very Good based on the visible clean exterior and intact-looking hardware, with minor blemishes noted by the seller; interior, bottom, odor, and hidden wear remain incompletely assessed."
                ],
                "confidence": 0.79,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.65,
                "estimated_era": "unknown",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior wall\/pockets for creed patch or brand label - not shown",
                    "close-up of hardware stamps on chain clasps and snap - not shown",
                    "bottom, side and back views to assess construction and wear - not shown",
                    "photo of any hangtag, wordmark, or made-in stamp - not shown"
                ],
                "negative_evidence": [
                    "photo 4,6: closure is round magnetic snap, not Coach turnlock geometry",
                    "photo 1-5: pointed petal\/heart flap silhouette matches no vintage Coach catalog style",
                    "photo 4,6: interior appears self-lined smooth pink leather with no visible creed patch, no zip pocket, no unlined suede back",
                    "photo 1-5: thin gold-tone chain strap with small swivel clasps, not Coach brass dogleash\/lobster or buckle-adjust leather strap",
                    "photo 5: smooth glossy finished leather, not matte glove-tanned full-grain with natural grain",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, hangtag, or creed visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone thin chain strap with small clasps and round magnetic snap closure; no solid brass turnlock, no buckles, no dogleash clips visible",
                    "leather_description": "smooth glossy pink\/coral leather with sheen, pointed flap; not matte glove-tanned cowhide",
                    "lining_description": "appears self-lined in same pink smooth material in photos 4 and 6; no suede back or fabric lining detail visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible - edge piping visible but stitch lines not legible in photos",
                    "strap_construction": "thin removable gold-tone metal chain shoulder strap attached with small swivel hooks",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model match: petal flap + magnetic snap + chain strap inconsistent with City Bag, Dinky, Court, Willis and other 1970s-1990s classics which use turnlock and leather strap",
                    "No hard identifiers: no creed, serial, wordmark, hangtag, or Talon\/YKK zip seen in any photo",
                    "Construction points away from Coach: glossy leather, self-lined interior, plated chain, magnetic snap vs unlined glove-tanned, solid brass, turnlock",
                    "Condition: Excellent to Very Good per seller; photos 1-5 show clean exterior with good color, no corner wear visible but bottom\/interior details not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.5
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17817,
            "output_tokens": 911,
            "total_tokens": 18728,
            "estimated_cost_usd": 0.009313
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18156,
            "output_tokens": 1487,
            "total_tokens": 19643,
            "estimated_cost_usd": 0.004821
        }
    ]
}