Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.035,
    "vintage_probability": 0.475,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.755,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.795,
    "recommended_max_bid": 8,
    "estimated_resale_low": 10,
    "estimated_resale_high": 27.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a structured shoulder handbag with a flap closure and chain strap.",
        "photo 3: Black suede-like exterior and gold-tone hardware are visible, but these features are generic and not specifically Coach.",
        "photo 5: Interior construction and zipper are visible enough to inspect for branding.",
        "photo 1,4: leather handbag silhouette with flap closure - general population where misidentified Coach could hide"
    ],
    "negative_evidence": [
        "photo 3: The front has U-shaped buckle accents rather than a recognizable Coach turnlock.",
        "photo 4: No Coach wordmark, horse-and-carriage, or leather hangtag is visible on the exterior.",
        "photo 5: Interior shows satin-like fabric lining and a generic snap\/closure arrangement, not a visible Coach creed patch.",
        "photo 6: Interior zipper and lining show no legible Coach marking.",
        "photo 1: The long chain strap and evening-bag styling do not closely match the listed classic vintage Coach models.",
        "photo 1,3,4: no turnlock - flap uses decorative buckle accents and magnetic snap, not Coach turnlock geometry",
        "photo 5,6: fabric satin-type lining, not unlined suede-back glove-tanned leather of vintage Coach classics",
        "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
        "photo 1,2,4,5: thin gold-tone chain shoulder strap with eyelet attachments, not Coach leather strap with brass dogleash clips or buckle adjustment",
        "photo 3,5: gold-tone plated hardware with magnetic snap closure, not solid brass vintage Coach hardware"
    ],
    "missing_information": [
        "photo 5-6: No straight-on close-up of every interior wall or pocket seam where a creed could be located.",
        "photo 6: Zipper pull branding is not legible.",
        "photo 3-4: Close-ups of all hardware and strap attachment points would be useful.",
        "Seller-stated dimensions and country of manufacture are not provided.",
        "photo 5-6: no creed patch visible on interior wall or pocket - confirm no stamped leather patch present",
        "photo 5: no hardware brand stamps shown on snap or chain attachments",
        "photo 1-4: no bottom, side, or close-up construction views"
    ],
    "authenticity_concerns": [
        "The bag lacks any visible Coach identifier and uses generic buckle accents rather than a characteristic Coach closure.",
        "The satin-like lining and chain-strap evening construction are inconsistent with the common unlined glove-tanned vintage Coach classics.",
        "No creed or style number is visible, so Coach manufacture cannot be supported from the photos."
    ],
    "possible_model_reasoning": [
        "No Coach model is a strong match. The flap, chain strap, and buckle accents are more consistent with a generic vintage evening shoulder bag than with a catalog Coach classic.",
        "The photos suggest pre-owned Good condition: visible suede nap variation and makeup\/spotting consistent with the seller's description; no obvious structural breakage is visible, but the bottom and strap stress points are not fully documented.",
        "Because no Coach identifier is visible and the lining appears satin-like, the item is best priced as a generic secondhand vintage bag rather than as Coach.",
        "No Coach catalog match: chain-strap suede flap with magnetic snap and fabric lining does not match City Bag (9790), Dinky (9375), Court (9870) or other classics which use leather straps, turnlocks, and unlined glove-tanned interiors",
        "Era reasoning: construction with fabric lining and plated chain points to generic vintage-style evening bag, not NYC\/US Coach era",
        "Condition: Good; seller states good vintage with makeup spots under flap, suede shows wear but intact in photos 1,3; interior not fully graded"
    ],
    "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 chain strap, two U-shaped front buckle accents, round snaps, and a zipper; no legible branding visible.",
        "leather_description": "Black suede or suede-like material with visible nap variation and wear marks; exact material cannot be confirmed.",
        "lining_description": "Dark satin-like textile lining with an interior zip pocket; no Coach label or creed visible.",
        "strap_construction": "Long gold-tone chain strap threaded through metal grommets on the flap\/interior sides.",
        "stitching_description": "Visible perimeter and strap-tab stitching appears generally even; close-up stress-point construction is limited."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0028,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.04,
                "vintage_probability": 0.55,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a structured shoulder handbag with a flap closure and chain strap.",
                    "photo 3: Black suede-like exterior and gold-tone hardware are visible, but these features are generic and not specifically Coach.",
                    "photo 5: Interior construction and zipper are visible enough to inspect for branding."
                ],
                "negative_evidence": [
                    "photo 3: The front has U-shaped buckle accents rather than a recognizable Coach turnlock.",
                    "photo 4: No Coach wordmark, horse-and-carriage, or leather hangtag is visible on the exterior.",
                    "photo 5: Interior shows satin-like fabric lining and a generic snap\/closure arrangement, not a visible Coach creed patch.",
                    "photo 6: Interior zipper and lining show no legible Coach marking.",
                    "photo 1: The long chain strap and evening-bag styling do not closely match the listed classic vintage Coach models."
                ],
                "missing_information": [
                    "photo 5-6: No straight-on close-up of every interior wall or pocket seam where a creed could be located.",
                    "photo 6: Zipper pull branding is not legible.",
                    "photo 3-4: Close-ups of all hardware and strap attachment points would be useful.",
                    "Seller-stated dimensions and country of manufacture are not provided."
                ],
                "authenticity_concerns": [
                    "The bag lacks any visible Coach identifier and uses generic buckle accents rather than a characteristic Coach closure.",
                    "The satin-like lining and chain-strap evening construction are inconsistent with the common unlined glove-tanned vintage Coach classics.",
                    "No creed or style number is visible, so Coach manufacture cannot be supported from the photos."
                ],
                "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 chain strap, two U-shaped front buckle accents, round snaps, and a zipper; no legible branding visible.",
                    "leather_description": "Black suede or suede-like material with visible nap variation and wear marks; exact material cannot be confirmed.",
                    "lining_description": "Dark satin-like textile lining with an interior zip pocket; no Coach label or creed visible.",
                    "strap_construction": "Long gold-tone chain strap threaded through metal grommets on the flap\/interior sides.",
                    "stitching_description": "Visible perimeter and strap-tab stitching appears generally even; close-up stress-point construction is limited."
                },
                "possible_model_reasoning": [
                    "No Coach model is a strong match. The flap, chain strap, and buckle accents are more consistent with a generic vintage evening shoulder bag than with a catalog Coach classic.",
                    "The photos suggest pre-owned Good condition: visible suede nap variation and makeup\/spotting consistent with the seller's description; no obvious structural breakage is visible, but the bottom and strap stress points are not fully documented.",
                    "Because no Coach identifier is visible and the lining appears satin-like, the item is best priced as a generic secondhand vintage bag rather than as Coach."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 8,
                "estimated_resale_low": 10,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.75,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo 5-6: no creed patch visible on interior wall or pocket - confirm no stamped leather patch present",
                    "photo 5: no hardware brand stamps shown on snap or chain attachments",
                    "photo 1-4: no bottom, side, or close-up construction views"
                ],
                "negative_evidence": [
                    "photo 1,3,4: no turnlock - flap uses decorative buckle accents and magnetic snap, not Coach turnlock geometry",
                    "photo 5,6: fabric satin-type lining, not unlined suede-back glove-tanned leather of vintage Coach classics",
                    "photo 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible",
                    "photo 1,2,4,5: thin gold-tone chain shoulder strap with eyelet attachments, not Coach leather strap with brass dogleash clips or buckle adjustment",
                    "photo 3,5: gold-tone plated hardware with magnetic snap closure, not solid brass vintage Coach hardware"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone chain strap and eyelets, decorative U-shaped buckle accents on flap, oval magnetic snap; bright plated tone, not solid brass turnlock",
                    "leather_description": "black suede exterior with napped finish, soft evening-bag construction",
                    "lining_description": "black shiny synthetic satin-type fabric lining with zip pocket visible in photo 6",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible - edge stitching faintly visible on flap straps in photo 3 but no detail to assess",
                    "strap_construction": "long thin gold-tone metal chain shoulder strap fed through suede loops, non-adjustable, non-leather",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1,4: leather handbag silhouette with flap closure - general population where misidentified Coach could hide"
                ],
                "possible_model_reasoning": [
                    "No Coach catalog match: chain-strap suede flap with magnetic snap and fabric lining does not match City Bag (9790), Dinky (9375), Court (9870) or other classics which use leather straps, turnlocks, and unlined glove-tanned interiors",
                    "Era reasoning: construction with fabric lining and plated chain points to generic vintage-style evening bag, not NYC\/US Coach era",
                    "Condition: Good; seller states good vintage with makeup spots under flap, suede shows wear but intact in photos 1,3; interior not fully graded"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.4
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18120,
            "output_tokens": 862,
            "total_tokens": 18982,
            "estimated_cost_usd": 0.009317
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18675,
            "output_tokens": 1364,
            "total_tokens": 20039,
            "estimated_cost_usd": 0.004826
        }
    ]
}