Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.075,
    "vintage_probability": 0.165,
    "authenticity_confidence": 0.065,
    "image_quality_score": 0.745,
    "seller_misidentification_probability": 0.075,
    "confidence": 0.72,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather shoulder\/crossbody handbag with a practical exterior zip pocket and long adjustable strap",
        "photo 3: the bag appears to use leather trim and metal zipper hardware",
        "photo 1-6: all-leather shoulder\/crossbody handbag in brown, consistent with seller-stated 11x11x5 in",
        "photo 3,5: brass-tone hardware and leather strap",
        "seller states bought 2002 in leather shop and 22 years ownership, consistent with early-2000s leather bag"
    ],
    "negative_evidence": [
        "photo 1: no visible Coach wordmark, horse-and-carriage, or recognizable Coach hardware",
        "photo 2: plain generic construction with a central vertical seam and no Coach-specific silhouette cues",
        "photo 3: zipper pull is plain and unmarked; no Coach engraving is visible",
        "photo 5: interior view does not show a Coach creed patch, logo label, or serial\/style number",
        "photo 4: the bag has multiple zip compartments and a soft lined construction more consistent with a generic leather-shop bag than a classic vintage Coach model",
        "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 1,4,6: zip-top closure with full-width exterior zip pocket, not a catalog vintage Coach turnlock silhouette",
        "photo 5: dark gray fabric lining visible at top zip, not unlined suede-back glove-tanned classic interior",
        "photo 3,5,6: thin rectangular bar zipper pulls with antique-gold tone, no solid-brass turnlock, dogleash clips, or Talon\/YKK Coach cues visible",
        "photo 2,3: pebbled thin-appearing leather with center seam, no glove-tanned patina \/ scars \/ veins characteristic"
    ],
    "missing_information": [
        "photo 5: a fully opened, emptied interior and all interior walls should be shown to confirm that no label or creed is hidden",
        "photo 5: close-up of the interior lining and any sewn-in fabric tags",
        "photo 1: close-ups of the strap attachments, bottom, and all hardware for more complete construction assessment",
        "seller-stated 2002 purchase date is not independently verifiable from the photos",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
        "photo of any fabric tags in pocket seams and Made-in line",
        "photo of bottom and all four corners and emptied interior",
        "close-up of zipper-pull brand stamps and strap hardware"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible in any provided photo; the bag is therefore best treated as an unbranded or generic leather handbag rather than a misidentified Coach.",
        "The plain rectangular zipper pulls and generic multi-pocket layout provide no positive Coach authentication evidence."
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because the bag lacks a visible creed, wordmark, hangtag, turnlock, or other Coach-specific identifier.",
        "The silhouette is a generic soft leather crossbody\/shoulder bag with zip compartments and does not closely establish a City Bag, Court, Willis, Station, or other catalog style.",
        "The seller's stated 2002 purchase date is weak contextual evidence only; the photos do not establish a production era.",
        "Condition: Good to Very Good; visible creasing and surface wear are present (photos 1-4), while the seller reports one interior white spot and one faded bottom-front spot; interior and bottom condition are incompletely shown.",
        "No Coach identifier visible so no catalog match; zip-top crossbody with exterior zip pocket and fabric lining does not match City Bag (9790), Willis (9927), Court (9870), Station (5130), Soho Zip Hobo (4161) which are turnlock flap or unlined classics; Condition: Very Good to Good; light surface sheen variation, seller-noted white spot inside and fade spot on bottom not clearly graded as interior and bottom not fully 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": "photo 3: gold-tone rectangular zipper pulls and dark zipper teeth are visible; no branding or engraving is visible",
        "leather_description": "photos 1-4: smooth, soft-looking burgundy\/chocolate-brown leather with natural wrinkling, creasing, and surface sheen; exact leather type is not determinable",
        "lining_description": "photo 5: dark interior and zipper compartments are partially visible; full lining material and condition are not determinable",
        "strap_construction": "photos 1, 4, and 6: long narrow adjustable shoulder\/crossbody strap attached at the upper sides with small metal hardware; full adjustment and attachment details are not visible",
        "stitching_description": "photos 1-4: generally straight machine stitching is visible along the seams and pockets, with some unevenness or bunching near edges; close stress-point inspection is unavailable"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0028,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.08,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.05,
                "image_quality_score": 0.84,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather shoulder\/crossbody handbag with a practical exterior zip pocket and long adjustable strap",
                    "photo 3: the bag appears to use leather trim and metal zipper hardware"
                ],
                "negative_evidence": [
                    "photo 1: no visible Coach wordmark, horse-and-carriage, or recognizable Coach hardware",
                    "photo 2: plain generic construction with a central vertical seam and no Coach-specific silhouette cues",
                    "photo 3: zipper pull is plain and unmarked; no Coach engraving is visible",
                    "photo 5: interior view does not show a Coach creed patch, logo label, or serial\/style number",
                    "photo 4: the bag has multiple zip compartments and a soft lined construction more consistent with a generic leather-shop bag than a classic vintage Coach model"
                ],
                "missing_information": [
                    "photo 5: a fully opened, emptied interior and all interior walls should be shown to confirm that no label or creed is hidden",
                    "photo 5: close-up of the interior lining and any sewn-in fabric tags",
                    "photo 1: close-ups of the strap attachments, bottom, and all hardware for more complete construction assessment",
                    "seller-stated 2002 purchase date is not independently verifiable from the photos"
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible in any provided photo; the bag is therefore best treated as an unbranded or generic leather handbag rather than a misidentified Coach.",
                    "The plain rectangular zipper pulls and generic multi-pocket layout provide no positive Coach authentication evidence."
                ],
                "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 3: gold-tone rectangular zipper pulls and dark zipper teeth are visible; no branding or engraving is visible",
                    "leather_description": "photos 1-4: smooth, soft-looking burgundy\/chocolate-brown leather with natural wrinkling, creasing, and surface sheen; exact leather type is not determinable",
                    "lining_description": "photo 5: dark interior and zipper compartments are partially visible; full lining material and condition are not determinable",
                    "strap_construction": "photos 1, 4, and 6: long narrow adjustable shoulder\/crossbody strap attached at the upper sides with small metal hardware; full adjustment and attachment details are not visible",
                    "stitching_description": "photos 1-4: generally straight machine stitching is visible along the seams and pockets, with some unevenness or bunching near edges; close stress-point inspection is unavailable"
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because the bag lacks a visible creed, wordmark, hangtag, turnlock, or other Coach-specific identifier.",
                    "The silhouette is a generic soft leather crossbody\/shoulder bag with zip compartments and does not closely establish a City Bag, Court, Willis, Station, or other catalog style.",
                    "The seller's stated 2002 purchase date is weak contextual evidence only; the photos do not establish a production era.",
                    "Condition: Good to Very Good; visible creasing and surface wear are present (photos 1-4), while the seller reports one interior white spot and one faded bottom-front spot; interior and bottom condition are incompletely shown."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.08,
                "coach_probability": 0.07,
                "confidence": 0.62,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 40,
                "estimated_resale_low": 15,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
                    "photo of any fabric tags in pocket seams and Made-in line",
                    "photo of bottom and all four corners and emptied interior",
                    "close-up of zipper-pull brand stamps and strap hardware"
                ],
                "negative_evidence": [
                    "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 1,4,6: zip-top closure with full-width exterior zip pocket, not a catalog vintage Coach turnlock silhouette",
                    "photo 5: dark gray fabric lining visible at top zip, not unlined suede-back glove-tanned classic interior",
                    "photo 3,5,6: thin rectangular bar zipper pulls with antique-gold tone, no solid-brass turnlock, dogleash clips, or Talon\/YKK Coach cues visible",
                    "photo 2,3: pebbled thin-appearing leather with center seam, no glove-tanned patina \/ scars \/ veins characteristic"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "antique gold-tone zippers; rectangular bar pulls on exterior pocket and top closure; thin adjustable strap rings; no turnlock; no legible COACH stamping",
                    "leather_description": "chocolate \/ burgundy-brown pebbled leather, soft slouchy hand, center front and back seams",
                    "lining_description": "dark gray fabric lining visible at top opening in photo 5; full interior not shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched straight stitching, center vertical seam and top edge; no irregularity visible",
                    "strap_construction": "thin flat adjustable crossbody\/shoulder strap, sewn fixed ends with buckle adjustment",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-6: all-leather shoulder\/crossbody handbag in brown, consistent with seller-stated 11x11x5 in",
                    "photo 3,5: brass-tone hardware and leather strap",
                    "seller states bought 2002 in leather shop and 22 years ownership, consistent with early-2000s leather bag"
                ],
                "possible_model_reasoning": [
                    "No Coach identifier visible so no catalog match; zip-top crossbody with exterior zip pocket and fabric lining does not match City Bag (9790), Willis (9927), Court (9870), Station (5130), Soho Zip Hobo (4161) which are turnlock flap or unlined classics; Condition: Very Good to Good; light surface sheen variation, seller-noted white spot inside and fade spot on bottom not clearly graded as interior and bottom not fully shown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.07,
                "vintage_probability": 0.15
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17839,
            "output_tokens": 971,
            "total_tokens": 18810,
            "estimated_cost_usd": 0.009466
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18177,
            "output_tokens": 1268,
            "total_tokens": 19445,
            "estimated_cost_usd": 0.00465
        }
    ]
}