Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.03,
    "vintage_probability": 0.41,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.685,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.82,
    "recommended_max_bid": 11.5,
    "estimated_resale_low": 7.5,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Leather-like shoulder bag with a front turning-tab closure is broadly compatible with the type of vintage handbag in which misidentified Coach examples can occur.",
        "photo 3: Interior gold logo appears to be a non-Coach brand mark rather than a Coach creed or wordmark.",
        "photo 1-2: leather flap shoulder bag silhouette with front turnlock closure broadly similar to vintage flap bags"
    ],
    "negative_evidence": [
        "photo 1: Front closure is a rounded, plated gold-tone mechanism unlike the elegant solid-brass Coach turnlock geometry typically seen on classic Coach bags.",
        "photo 1: Strap attachments and hardware appear thin and plated rather than substantial vintage Coach brass hardware.",
        "photo 2: Bag has a fabric-lined, structured construction and a narrow long shoulder strap; no Coach-specific exterior branding is visible.",
        "photo 3: Interior shows a printed\/foil logo on synthetic-looking lining, not a sewn rectangular Coach creed patch.",
        "photo 3: No legible COACH wordmark, horse-and-carriage mark, creed, or serial\/style number is visible.",
        "listing text: Seller describes the item as Vintage but does not provide a Coach attribution or Coach identifiers.",
        "photo 3: black woven fabric lining with gold JR logo stamp, not unlined glove-tanned suede and not Coach creed",
        "photo 1: half-moon turnlock with narrow T-bar tab, not Coach wide oval-to-rectangle thin turnlock geometry",
        "photo 1-2: thin coated-looking leather with surface sheen and flap creasing, plus bright gold-tone plated hardware, not solid brass vintage Coach",
        "photo 2: strap attached with small gold-tone end clips, not Coach brass dogleash\/lobster or buckle construction"
    ],
    "missing_information": [
        "photo 4: Clear interior view showing the full logo and any labels, tags, or country-of-origin markings.",
        "photo 5: Close-up of the zipper pull, turnlock back plate, strap clips, and any hardware engravings.",
        "photo 6: Bottom, side seams, corners, and strap construction for condition and material assessment.",
        "photo 7: Full-resolution close-up of the interior logo to identify the likely non-Coach brand.",
        "photo of any creed patch or made-in stamp in raking light to confirm no Coach identifiers missed",
        "photo 1-2: bottom and corners to grade wear",
        "photo 1: turnlock back-plate and hardware engravings close-up",
        "photo 3: full interior and pocket views emptied"
    ],
    "authenticity_concerns": [
        "photo 1: Hardware and closure do not match the typical construction of a classic vintage Coach turnlock bag.",
        "photo 3: The visible interior logo and fabric lining indicate a different brand or lookalike construction; no Coach identifier is present.",
        "photo 3: The lining appears synthetic and the metallic logo is not a Coach creed, raising concern that this is a non-Coach designer or mall-brand bag.",
        "photo 3: interior bears gold JR-branded stamp, indicating a non-Coach maker, inconsistent with Coach creed patch"
    ],
    "possible_model_reasoning": [
        "photo 1: Silhouette is a generic flap shoulder bag and does not closely establish a specific Coach model.",
        "photo 3: The interior logo appears to begin with a stylized letterform and is not legibly COACH; it may be an Aigner or other non-Coach mark, but the image is insufficient for a firm brand identification.",
        "photo 1: The visible plated gold closure and lined interior are more consistent with a non-Coach fashion shoulder bag than with a classic unlined glove-tanned Coach style.",
        "photo 1\/photo 2: Condition appears Good to Very Good: visible creasing, surface wear, and hardware wear; bottom and interior condition are incompletely shown.",
        "No Coach model fits: JR interior brand in photo 3 identifies a different maker, turnlock geometry and fabric lining are inconsistent with 1970s-1990s Coach classics",
        "Condition: Very Good to Good based on visible flap creasing and surface wear in photo 1, capped because bottom, corners and full interior not shown"
    ],
    "estimated_era": "modern (2000s+), non-Coach",
    "observed_features": {
        "creed_present": false,
        "serial_or_style_number_present": false,
        "coach_wordmark_present": false,
        "turnlock_present": true,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photo 1: Rounded gold-tone plated front turning closure; photo 2: narrow gold-tone strap hardware. No Coach engraving visible.",
        "leather_description": "photo 1: Dark gray\/black textured leather-like exterior with visible surface creasing and wear; exact material not determinable.",
        "lining_description": "photo 3: Black fabric lining with a small gold printed\/foil logo and visible edge wear; not a Coach creed lining.",
        "strap_construction": "photo 2: Long narrow adjustable shoulder strap attached with small metal fittings; construction details are limited.",
        "stitching_description": "photo 1: Visible perimeter and flap stitching appears generally even, with some wear; close stress-point inspection 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": 0.04,
                "vintage_probability": 0.42,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Leather-like shoulder bag with a front turning-tab closure is broadly compatible with the type of vintage handbag in which misidentified Coach examples can occur.",
                    "photo 3: Interior gold logo appears to be a non-Coach brand mark rather than a Coach creed or wordmark."
                ],
                "negative_evidence": [
                    "photo 1: Front closure is a rounded, plated gold-tone mechanism unlike the elegant solid-brass Coach turnlock geometry typically seen on classic Coach bags.",
                    "photo 1: Strap attachments and hardware appear thin and plated rather than substantial vintage Coach brass hardware.",
                    "photo 2: Bag has a fabric-lined, structured construction and a narrow long shoulder strap; no Coach-specific exterior branding is visible.",
                    "photo 3: Interior shows a printed\/foil logo on synthetic-looking lining, not a sewn rectangular Coach creed patch.",
                    "photo 3: No legible COACH wordmark, horse-and-carriage mark, creed, or serial\/style number is visible.",
                    "listing text: Seller describes the item as Vintage but does not provide a Coach attribution or Coach identifiers."
                ],
                "missing_information": [
                    "photo 4: Clear interior view showing the full logo and any labels, tags, or country-of-origin markings.",
                    "photo 5: Close-up of the zipper pull, turnlock back plate, strap clips, and any hardware engravings.",
                    "photo 6: Bottom, side seams, corners, and strap construction for condition and material assessment.",
                    "photo 7: Full-resolution close-up of the interior logo to identify the likely non-Coach brand."
                ],
                "authenticity_concerns": [
                    "photo 1: Hardware and closure do not match the typical construction of a classic vintage Coach turnlock bag.",
                    "photo 3: The visible interior logo and fabric lining indicate a different brand or lookalike construction; no Coach identifier is present.",
                    "photo 3: The lining appears synthetic and the metallic logo is not a Coach creed, raising concern that this is a non-Coach designer or mall-brand bag."
                ],
                "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": true,
                    "hangtag_present": false,
                    "hardware_description": "photo 1: Rounded gold-tone plated front turning closure; photo 2: narrow gold-tone strap hardware. No Coach engraving visible.",
                    "leather_description": "photo 1: Dark gray\/black textured leather-like exterior with visible surface creasing and wear; exact material not determinable.",
                    "lining_description": "photo 3: Black fabric lining with a small gold printed\/foil logo and visible edge wear; not a Coach creed lining.",
                    "strap_construction": "photo 2: Long narrow adjustable shoulder strap attached with small metal fittings; construction details are limited.",
                    "stitching_description": "photo 1: Visible perimeter and flap stitching appears generally even, with some wear; close stress-point inspection unavailable."
                },
                "possible_model_reasoning": [
                    "photo 1: Silhouette is a generic flap shoulder bag and does not closely establish a specific Coach model.",
                    "photo 3: The interior logo appears to begin with a stylized letterform and is not legibly COACH; it may be an Aigner or other non-Coach mark, but the image is insufficient for a firm brand identification.",
                    "photo 1: The visible plated gold closure and lined interior are more consistent with a non-Coach fashion shoulder bag than with a classic unlined glove-tanned Coach style.",
                    "photo 1\/photo 2: Condition appears Good to Very Good: visible creasing, surface wear, and hardware wear; bottom and interior condition are incompletely shown."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 15,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 3: interior bears gold JR-branded stamp, indicating a non-Coach maker, inconsistent with Coach creed patch"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.8,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of any creed patch or made-in stamp in raking light to confirm no Coach identifiers missed",
                    "photo 1-2: bottom and corners to grade wear",
                    "photo 1: turnlock back-plate and hardware engravings close-up",
                    "photo 3: full interior and pocket views emptied"
                ],
                "negative_evidence": [
                    "photo 3: black woven fabric lining with gold JR logo stamp, not unlined glove-tanned suede and not Coach creed",
                    "photo 1: half-moon turnlock with narrow T-bar tab, not Coach wide oval-to-rectangle thin turnlock geometry",
                    "photo 1-2: thin coated-looking leather with surface sheen and flap creasing, plus bright gold-tone plated hardware, not solid brass vintage Coach",
                    "photo 2: strap attached with small gold-tone end clips, not Coach brass dogleash\/lobster or buckle construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone half-moon turnlock with small T-bar in photo 1; small gold-tone strap end-clips in photo 1-2; appears plated, not solid brass vintage hardware",
                    "leather_description": "dark grey\/black smooth leather-look with surface sheen, grain and flap creasing visible in photo 1-2; appears thin\/coated, not thick matte glove-tanned cowhide",
                    "lining_description": "black woven fabric lining with gold foil JR logo in photo 3 and gold-tone edge trim",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight edge stitching visible on back flap in photo 2; no detail sufficient to judge thread match",
                    "strap_construction": "narrow double flat shoulder strap with gold-tone hardware at ends in photo 1-2; full length, adjustment and clips not shown",
                    "turnlock_present": true
                },
                "positive_evidence": [
                    "photo 1-2: leather flap shoulder bag silhouette with front turnlock closure broadly similar to vintage flap bags"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: JR interior brand in photo 3 identifies a different maker, turnlock geometry and fabric lining are inconsistent with 1970s-1990s Coach classics",
                    "Condition: Very Good to Good based on visible flap creasing and surface wear in photo 1, capped because bottom, corners and full interior not shown"
                ],
                "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": 16605,
            "output_tokens": 1016,
            "total_tokens": 17621,
            "estimated_cost_usd": 0.00908
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17025,
            "output_tokens": 1373,
            "total_tokens": 18398,
            "estimated_cost_usd": 0.004503
        }
    ]
}