Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.07,
    "vintage_probability": 0.165,
    "authenticity_confidence": 0.05,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.07,
    "confidence": 0.765,
    "recommended_max_bid": 11,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 47.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather shoulder\/messenger bag with a structured flap and brown leather construction.",
        "photo 1: metal strap fittings appear brass-tone, though their quality and markings are not fully shown.",
        "photo 2: rear zip pocket and rounded messenger silhouette are visible.",
        "photo 1-3: leather flap crossbody handbag in brown, general size class where misidentified Coach could hide"
    ],
    "negative_evidence": [
        "photo 1: no visible Coach wordmark, carriage emblem, creed patch, or hangtag.",
        "photo 1: front closure appears to be a decorative strap-and-buckle arrangement rather than a recognizable Coach turnlock.",
        "photo 1: decorative stitched flap and front pocket design look generic and handmade rather than a documented vintage Coach silhouette.",
        "photo 2: rear zipper hardware and construction are generic, with no visible Coach marking.",
        "Listing title describes the bag as handmade and unbranded; this is weak supporting context only.",
        "photo 1, photo 3: front closure is a narrow leather tab with small buckle, not a Coach turnlock with oval back plate",
        "photo 2: back exterior has horizontal zip pocket with modern light-tone zipper pull, not seen on vintage Coach saddle classics",
        "photo 1-3: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 1-3: silhouette with pointed flap and buckle tab does not match any catalog Coach classic such as Willis (9927), Court (9870), Station (5130), Dinky (9375)",
        "photo 1-3: light contrast edge stitching and thin modern crossbody strap construction inconsistent with vintage glove-tanned Coach construction"
    ],
    "missing_information": [
        "photo 1-3: interior, lining, and any interior leather creed patch are not shown.",
        "photo 1-3: strap ends, buckle backs, zipper-pull markings, and all hardware close-ups are not shown.",
        "photo 1-3: bottom, corners, and interior condition are not shown.",
        "A straight-on close-up of any interior labels or stamps would be needed to investigate Coach attribution.",
        "photo of interior lining and interior pockets with creed patch area not shown",
        "straight-on creed patch photo in raking light not shown",
        "close-up of hardware stamps, zipper-pull brand, and Made-in line not shown",
        "bottom, side, and strap-detail views not shown"
    ],
    "authenticity_concerns": [
        "The visible design lacks a Coach identifier and does not closely match the documented classic Coach turnlock constructions.",
        "The decorative front closure and layered stitched panels are consistent with a generic handmade or Coach-style bag, but photos cannot establish a specific maker."
    ],
    "possible_model_reasoning": [
        "The bag is a handbag, but its flap, buckle strap, rear zip pocket, and decorative front panels do not provide a strong match to a documented Coach model.",
        "No Coach creed, style number, wordmark, or carriage is visible in the supplied exterior photos; the interior is unavailable for the most important identifier check.",
        "Condition appears Very Good from the visible exterior: light creasing and small surface marks are present, with no obvious major tears or structural damage; interior and bottom condition are unknown.",
        "No Coach model fits: buckle-tab closure vs Coach turnlock, back zip pocket layout, and modern handmade finish do not match Willis (9927), Court (9870), Station (5130), Dinky (9375) or other classics",
        "No creed, serial, wordmark, hangtag, or solid-brass turnlock geometry to support any Coach identification",
        "Condition: appears Like New \/ new handmade stock photos, but interior and bottom not shown so no formal grade; treated as new generic handmade bag"
    ],
    "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": "photo 1: brass-tone rings, buckle-like fittings, and a small front clasp are visible; no Coach engraving is legible.",
        "leather_description": "photo 1: brown leather with a smooth-to-lightly pebbled surface, visible creasing, and tonal stitched leather trim; exact leather type is not determinable.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: long adjustable-looking leather shoulder strap attached with metal rings; full adjustment and attachment construction are not shown.",
        "stitching_description": "photo 1: visible double-row tonal stitching appears generally even around the flap, front pocket, and body edges."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0057,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.12,
                "vintage_probability": 0.28,
                "authenticity_confidence": 0.08,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather shoulder\/messenger bag with a structured flap and brown leather construction.",
                    "photo 1: metal strap fittings appear brass-tone, though their quality and markings are not fully shown.",
                    "photo 2: rear zip pocket and rounded messenger silhouette are visible."
                ],
                "negative_evidence": [
                    "photo 1: no visible Coach wordmark, carriage emblem, creed patch, or hangtag.",
                    "photo 1: front closure appears to be a decorative strap-and-buckle arrangement rather than a recognizable Coach turnlock.",
                    "photo 1: decorative stitched flap and front pocket design look generic and handmade rather than a documented vintage Coach silhouette.",
                    "photo 2: rear zipper hardware and construction are generic, with no visible Coach marking.",
                    "Listing title describes the bag as handmade and unbranded; this is weak supporting context only."
                ],
                "missing_information": [
                    "photo 1-3: interior, lining, and any interior leather creed patch are not shown.",
                    "photo 1-3: strap ends, buckle backs, zipper-pull markings, and all hardware close-ups are not shown.",
                    "photo 1-3: bottom, corners, and interior condition are not shown.",
                    "A straight-on close-up of any interior labels or stamps would be needed to investigate Coach attribution."
                ],
                "authenticity_concerns": [
                    "The visible design lacks a Coach identifier and does not closely match the documented classic Coach turnlock constructions.",
                    "The decorative front closure and layered stitched panels are consistent with a generic handmade or Coach-style bag, but photos cannot establish a specific maker."
                ],
                "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: brass-tone rings, buckle-like fittings, and a small front clasp are visible; no Coach engraving is legible.",
                    "leather_description": "photo 1: brown leather with a smooth-to-lightly pebbled surface, visible creasing, and tonal stitched leather trim; exact leather type is not determinable.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: long adjustable-looking leather shoulder strap attached with metal rings; full adjustment and attachment construction are not shown.",
                    "stitching_description": "photo 1: visible double-row tonal stitching appears generally even around the flap, front pocket, and body edges."
                },
                "possible_model_reasoning": [
                    "The bag is a handbag, but its flap, buckle strap, rear zip pocket, and decorative front panels do not provide a strong match to a documented Coach model.",
                    "No Coach creed, style number, wordmark, or carriage is visible in the supplied exterior photos; the interior is unavailable for the most important identifier check.",
                    "Condition appears Very Good from the visible exterior: light creasing and small surface marks are present, with no obvious major tears or structural damage; interior and bottom condition are unknown."
                ],
                "confidence": 0.68,
                "recommended_max_bid": 10,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior lining and interior pockets with creed patch area not shown",
                    "straight-on creed patch photo in raking light not shown",
                    "close-up of hardware stamps, zipper-pull brand, and Made-in line not shown",
                    "bottom, side, and strap-detail views not shown"
                ],
                "negative_evidence": [
                    "photo 1, photo 3: front closure is a narrow leather tab with small buckle, not a Coach turnlock with oval back plate",
                    "photo 2: back exterior has horizontal zip pocket with modern light-tone zipper pull, not seen on vintage Coach saddle classics",
                    "photo 1-3: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 1-3: silhouette with pointed flap and buckle tab does not match any catalog Coach classic such as Willis (9927), Court (9870), Station (5130), Dinky (9375)",
                    "photo 1-3: light contrast edge stitching and thin modern crossbody strap construction inconsistent with vintage glove-tanned Coach construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone small buckle on front tab, D-rings at strap anchors, modern zipper pull on back pocket; no turnlock; no COACH stamping visible",
                    "leather_description": "medium brown smooth leather with light grain, soft sheen; not clearly glove-tanned patina in photos",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light tan contrast stitching around flap edge and front pocket, even but visible; no detail of stress points visible",
                    "strap_construction": "thin flat crossbody shoulder strap attached with D-rings, no dogleash clips or dowel handle visible",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-3: leather flap crossbody handbag in brown, general size class where misidentified Coach could hide"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: buckle-tab closure vs Coach turnlock, back zip pocket layout, and modern handmade finish do not match Willis (9927), Court (9870), Station (5130), Dinky (9375) or other classics",
                    "No creed, serial, wordmark, hangtag, or solid-brass turnlock geometry to support any Coach identification",
                    "Condition: appears Like New \/ new handmade stock photos, but interior and bottom not shown so no formal grade; treated as new generic handmade bag"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17073,
            "output_tokens": 815,
            "total_tokens": 17888,
            "estimated_cost_usd": 0.008785
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17527,
            "output_tokens": 1179,
            "total_tokens": 18706,
            "estimated_cost_usd": 0.004449
        }
    ]
}