Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.035,
    "vintage_probability": 0.19,
    "authenticity_confidence": 0.03,
    "image_quality_score": 0.66,
    "seller_misidentification_probability": 0.105,
    "confidence": 0.74,
    "recommended_max_bid": 12,
    "estimated_resale_low": 9,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a structured handbag with two top handles, flap closure, and shoulder-carry proportions.",
        "photo 1: The bag appears to have a leather-like smooth black exterior and metal-tone handle grommets.",
        "photo 1, photo 3: black flap shoulder bag in leather-like material - only broad category similarity to vintage shoulder bags"
    ],
    "negative_evidence": [
        "photo 1: No visible Coach wordmark, horse-and-carriage, creed patch, or recognizable Coach hardware.",
        "photo 2: Interior has a shiny synthetic-looking lining and generic zip pocket construction, unlike the suede-back or era-consistent interiors of many vintage Coach classics.",
        "photo 1: The large circular gold-tone grommets are not characteristic of the classic Coach turnlock silhouettes shown in the catalog.",
        "photo 3: Overall construction and silhouette appear generic rather than a clearly identifiable Coach model.",
        "photo 1, photo 3: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible",
        "photo 2: fully fabric\/synthetic-lined interior with zip pocket - vintage Coach classics are unlined suede-back glove-tanned, not fabric-lined",
        "photo 1, photo 3: no turnlock; flap has no lock, only double handles through large gold-tone grommets - not a Coach closure or handle attachment",
        "photo 1-3: smooth polished\/coated exterior with sheen and fabric lining inconsistent with 1970s-1990s glove-tanned Coach leather and construction",
        "photo 1-3: silhouette with twin rolled top handles looped through grommets does not match any catalog classic (City Bag, Willis, Court, Station, etc.)"
    ],
    "missing_information": [
        "photo 1: The dangling tag is too small and unclear to identify; request a sharp close-up of both sides.",
        "Request a straight-on photo of the interior back wall and all pockets to check for a creed or fabric label.",
        "Request close-ups of zipper pull, hardware, stitching, bottom, corners, and handle attachments.",
        "Seller-stated dimensions and material composition are not provided.",
        "photo of any interior leather creed patch or fabric brand tag in straight-on raking light - none visible",
        "photo of hardware engravings \/ zipper-pull brand stamp",
        "photo of bottom, sides and close-up of handles\/grommets and stitching",
        "seller-stated dimensions and materials for scale"
    ],
    "authenticity_concerns": [
        "photo 1: No Coach identifiers are visible, while the generic design and prominent grommet hardware provide no meaningful Coach-specific support.",
        "photo 2: Shiny synthetic-looking lining is inconsistent with many classic unlined glove-tanned Coach styles, though the exact model and material cannot be determined from these photos."
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because no Coach identifier or distinctive Coach construction is visible.",
        "photo 1: The flap, double-handle, and grommet arrangement is compatible with a generic structured handbag and does not closely establish a Willis, Court, Station, or other catalog model.",
        "Condition: Good to Very Good; exterior shows creasing and handling impressions, but no major tears or broken hardware are visible. Interior and lower corners are only partially documented.",
        "No Coach model fits: handle-through-grommet double-handle flap, no turnlock, fabric lining and polished finish are inconsistent with 1970s-1990s glove-tanned classics and with modern Coach lines",
        "No creed, serial, wordmark, hangtag or Coach hardware to decode; era cannot be dated as Coach",
        "Condition: Good to Very Good for a generic bag; exterior shows light creasing\/scuffs (photo 1, photo 3), interior looks clean (photo 2), but bottom\/corners\/strap folds not shown so capped"
    ],
    "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: Gold-tone circular grommets at the handle attachments and a small dangling tag; the tag's text is not legible. No turnlock is visible.",
        "leather_description": "photo 1: Smooth, highly polished black leather-like exterior; exact material is not verifiable.",
        "lining_description": "photo 2: Black shiny fabric or synthetic-looking lining with an interior zip pocket; exact material and labels are not legible.",
        "strap_construction": "photo 1: Two fixed rounded top handles attached through circular grommets; no detachable shoulder strap is visible.",
        "stitching_description": "photos 1-3: Visible perimeter and flap stitching appears generally even, but close-up resolution is insufficient for detailed construction assessment."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0033,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.04,
                "vintage_probability": 0.08,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.72,
                "seller_misidentification_probability": 0.18,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a structured handbag with two top handles, flap closure, and shoulder-carry proportions.",
                    "photo 1: The bag appears to have a leather-like smooth black exterior and metal-tone handle grommets."
                ],
                "negative_evidence": [
                    "photo 1: No visible Coach wordmark, horse-and-carriage, creed patch, or recognizable Coach hardware.",
                    "photo 2: Interior has a shiny synthetic-looking lining and generic zip pocket construction, unlike the suede-back or era-consistent interiors of many vintage Coach classics.",
                    "photo 1: The large circular gold-tone grommets are not characteristic of the classic Coach turnlock silhouettes shown in the catalog.",
                    "photo 3: Overall construction and silhouette appear generic rather than a clearly identifiable Coach model."
                ],
                "missing_information": [
                    "photo 1: The dangling tag is too small and unclear to identify; request a sharp close-up of both sides.",
                    "Request a straight-on photo of the interior back wall and all pockets to check for a creed or fabric label.",
                    "Request close-ups of zipper pull, hardware, stitching, bottom, corners, and handle attachments.",
                    "Seller-stated dimensions and material composition are not provided."
                ],
                "authenticity_concerns": [
                    "photo 1: No Coach identifiers are visible, while the generic design and prominent grommet hardware provide no meaningful Coach-specific support.",
                    "photo 2: Shiny synthetic-looking lining is inconsistent with many classic unlined glove-tanned Coach styles, though the exact model and material cannot be determined from these 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": true,
                    "hardware_description": "photo 1: Gold-tone circular grommets at the handle attachments and a small dangling tag; the tag's text is not legible. No turnlock is visible.",
                    "leather_description": "photo 1: Smooth, highly polished black leather-like exterior; exact material is not verifiable.",
                    "lining_description": "photo 2: Black shiny fabric or synthetic-looking lining with an interior zip pocket; exact material and labels are not legible.",
                    "strap_construction": "photo 1: Two fixed rounded top handles attached through circular grommets; no detachable shoulder strap is visible.",
                    "stitching_description": "photos 1-3: Visible perimeter and flap stitching appears generally even, but close-up resolution is insufficient for detailed construction assessment."
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because no Coach identifier or distinctive Coach construction is visible.",
                    "photo 1: The flap, double-handle, and grommet arrangement is compatible with a generic structured handbag and does not closely establish a Willis, Court, Station, or other catalog model.",
                    "Condition: Good to Very Good; exterior shows creasing and handling impressions, but no major tears or broken hardware are visible. Interior and lower corners are only partially documented."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 12,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.7,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 8,
                "image_quality_score": 0.6,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of any interior leather creed patch or fabric brand tag in straight-on raking light - none visible",
                    "photo of hardware engravings \/ zipper-pull brand stamp",
                    "photo of bottom, sides and close-up of handles\/grommets and stitching",
                    "seller-stated dimensions and materials for scale"
                ],
                "negative_evidence": [
                    "photo 1, photo 3: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible",
                    "photo 2: fully fabric\/synthetic-lined interior with zip pocket - vintage Coach classics are unlined suede-back glove-tanned, not fabric-lined",
                    "photo 1, photo 3: no turnlock; flap has no lock, only double handles through large gold-tone grommets - not a Coach closure or handle attachment",
                    "photo 1-3: smooth polished\/coated exterior with sheen and fabric lining inconsistent with 1970s-1990s glove-tanned Coach leather and construction",
                    "photo 1-3: silhouette with twin rolled top handles looped through grommets does not match any catalog classic (City Bag, Willis, Court, Station, etc.)"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone large oval grommets\/rings at handle bases in photo 1; gold-tone zipper in photo 2; tone bright\/plated look, no COACH stamping visible",
                    "leather_description": "smooth black polished exterior with sheen in photo 1, photo 3; appears coated leather or synthetic, not matte glove-tanned grain; texture not clearly visible",
                    "lining_description": "black fabric\/synthetic lining in photo 2 with center zip pocket; not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "edge stitching visible along flap in photo 1, photo 3 but no close-up to assess tightness or thread match; not_visible in detail",
                    "strap_construction": "double fixed rolled top handles looped through front grommets in photo 1, photo 3; not buckle-adjustable, not dogleash detachable, not dowel-wrapped",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1, photo 3: black flap shoulder bag in leather-like material - only broad category similarity to vintage shoulder bags"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: handle-through-grommet double-handle flap, no turnlock, fabric lining and polished finish are inconsistent with 1970s-1990s glove-tanned classics and with modern Coach lines",
                    "No creed, serial, wordmark, hangtag or Coach hardware to decode; era cannot be dated as Coach",
                    "Condition: Good to Very Good for a generic bag; exterior shows light creasing\/scuffs (photo 1, photo 3), interior looks clean (photo 2), but bottom\/corners\/strap folds not shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 16611,
            "output_tokens": 836,
            "total_tokens": 17447,
            "estimated_cost_usd": 0.008651
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17028,
            "output_tokens": 1374,
            "total_tokens": 18402,
            "estimated_cost_usd": 0.004505
        }
    ]
}