Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.06,
    "vintage_probability": 0.265,
    "authenticity_confidence": 0.06,
    "image_quality_score": 0.735,
    "seller_misidentification_probability": 0.08,
    "confidence": 0.715,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 15,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: clearly a structured leather handbag with a top zipper and two handles.",
        "photo 1: visible gold-tone hardware and leather construction are compatible with some Coach-era bags, but are not distinctive identifiers.",
        "photo 1-3: genuine leather handbag with brass-tone hardware in overall good condition",
        "photo 5-6: tape shows ~8 in tall body with short top handles, consistent with small satchel"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or hangtag.",
        "photo 2: diagonal quilted stitching, wrapped handles, and decorative strap tabs do not closely match the documented classic Coach silhouettes.",
        "photo 4: the hardware is generic rectangular-ring hardware rather than a recognizable Coach turnlock or documented classic Coach closure.",
        "photo 1: the leather appears heavily wrinkled and lightly glossy, with construction more suggestive of a generic fashion satchel than vintage glove-tanned Coach.",
        "photo 1: seller identifies the item only as unbranded; this is weak context and does not establish Coach manufacture.",
        "photo 1-3: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 1-3: zip-top satchel with all-over diagonal quilt stitching does not match any classic Coach catalog silhouette",
        "photo 4: stirrup \/ horse-bit style handle hardware with leather-wrapped bar is not vintage Coach solid-brass turnlock\/dogleash geometry",
        "photo 1-6: no turnlock present",
        "photo 1-6: interior, lining, creed and bottom never shown so no hard Coach identifier can be verified"
    ],
    "missing_information": [
        "photo 1-6: interior view, especially the back wall, slip pocket, and any leather creed patch.",
        "photo 1-6: close-up of the zipper pull, all hardware, and any hidden brand stamps.",
        "photo 1-6: back, bottom, side seams, and full handle attachment details.",
        "photo 1-6: seller-stated dimensions, country-of-origin marking, and any interior fabric or care labels.",
        "photo of interior emptied showing lining and any creed patch or labels",
        "straight-on creed or interior label close-up in raking light",
        "bottom and corners and back exterior views",
        "zipper pull brand stamp and hardware engravings",
        "seller-stated dimensions and weight"
    ],
    "authenticity_concerns": [
        "photo 1: the visible construction lacks any Coach identifier and has a generic, non-catalog silhouette; it should not be treated as Coach based on appearance alone.",
        "photo 4: the decorative strap-and-ring hardware is not the classic Coach turnlock geometry and may indicate a lookalike or unrelated maker."
    ],
    "possible_model_reasoning": [
        "The handbag is a zip-top satchel, but its diagonal quilting and handle-tab construction do not provide a reliable match to a listed Coach model.",
        "No creed, serial\/style number, wordmark, or recognizable Coach hardware is visible, so no Coach model can be assigned.",
        "Condition appears Good: photo 1 shows widespread creasing and wrinkling in the body and handles, while corners and the interior are not fully documented.",
        "No Coach model fits: zip-top quilted satchel with stirrup handle mounts is not City Bag, Court, Station, Willis, Dinky or other classic; no creed, wordmark or turnlock to support Coach manufacture",
        "Condition: Very Good to Excellent from exterior only; leather clean with light softening and no visible corner wear in photo 1-3, handles intact; capped because interior, bottom and lining 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": false,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photo 1 and photo 4: gold-tone rivets and rectangular ring-and-tab handle attachments; no visible Coach engraving. A top zipper is visible, but its pull branding is not readable.",
        "leather_description": "photo 1: mint-green leather or leather-like material with substantial wrinkling, diagonal quilting, and a lightly glossy surface; exact leather type is not verifiable.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: two padded, wrapped top handles attached with riveted leather tabs and rectangular rings; no detachable shoulder strap is visible.",
        "stitching_description": "photo 1 and photo 2: visible diagonal quilting and perimeter seams; stitching appears generally even, though construction details at the interior and stress points are not shown."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0028,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.07,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.06,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.11,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: clearly a structured leather handbag with a top zipper and two handles.",
                    "photo 1: visible gold-tone hardware and leather construction are compatible with some Coach-era bags, but are not distinctive identifiers."
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, or hangtag.",
                    "photo 2: diagonal quilted stitching, wrapped handles, and decorative strap tabs do not closely match the documented classic Coach silhouettes.",
                    "photo 4: the hardware is generic rectangular-ring hardware rather than a recognizable Coach turnlock or documented classic Coach closure.",
                    "photo 1: the leather appears heavily wrinkled and lightly glossy, with construction more suggestive of a generic fashion satchel than vintage glove-tanned Coach.",
                    "photo 1: seller identifies the item only as unbranded; this is weak context and does not establish Coach manufacture."
                ],
                "missing_information": [
                    "photo 1-6: interior view, especially the back wall, slip pocket, and any leather creed patch.",
                    "photo 1-6: close-up of the zipper pull, all hardware, and any hidden brand stamps.",
                    "photo 1-6: back, bottom, side seams, and full handle attachment details.",
                    "photo 1-6: seller-stated dimensions, country-of-origin marking, and any interior fabric or care labels."
                ],
                "authenticity_concerns": [
                    "photo 1: the visible construction lacks any Coach identifier and has a generic, non-catalog silhouette; it should not be treated as Coach based on appearance alone.",
                    "photo 4: the decorative strap-and-ring hardware is not the classic Coach turnlock geometry and may indicate a lookalike or unrelated 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 and photo 4: gold-tone rivets and rectangular ring-and-tab handle attachments; no visible Coach engraving. A top zipper is visible, but its pull branding is not readable.",
                    "leather_description": "photo 1: mint-green leather or leather-like material with substantial wrinkling, diagonal quilting, and a lightly glossy surface; exact leather type is not verifiable.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: two padded, wrapped top handles attached with riveted leather tabs and rectangular rings; no detachable shoulder strap is visible.",
                    "stitching_description": "photo 1 and photo 2: visible diagonal quilting and perimeter seams; stitching appears generally even, though construction details at the interior and stress points are not shown."
                },
                "possible_model_reasoning": [
                    "The handbag is a zip-top satchel, but its diagonal quilting and handle-tab construction do not provide a reliable match to a listed Coach model.",
                    "No creed, serial\/style number, wordmark, or recognizable Coach hardware is visible, so no Coach model can be assigned.",
                    "Condition appears Good: photo 1 shows widespread creasing and wrinkling in the body and handles, while corners and the interior are not fully documented."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 12,
                "estimated_resale_low": 10,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.06,
                "coach_probability": 0.05,
                "confidence": 0.65,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 40,
                "estimated_resale_low": 20,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior emptied showing lining and any creed patch or labels",
                    "straight-on creed or interior label close-up in raking light",
                    "bottom and corners and back exterior views",
                    "zipper pull brand stamp and hardware engravings",
                    "seller-stated dimensions and weight"
                ],
                "negative_evidence": [
                    "photo 1-3: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 1-3: zip-top satchel with all-over diagonal quilt stitching does not match any classic Coach catalog silhouette",
                    "photo 4: stirrup \/ horse-bit style handle hardware with leather-wrapped bar is not vintage Coach solid-brass turnlock\/dogleash geometry",
                    "photo 1-6: no turnlock present",
                    "photo 1-6: interior, lining, creed and bottom never shown so no hard Coach identifier can be verified"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone top zip, D-rings with leather-wrapped cross-bar at handle anchors, dome rivets; tone bright and plated-looking in photo 4, no COACH engraving visible",
                    "leather_description": "mint \/ pale green smooth leather with diagonal quilt stitching on front and back panels, light sheen, soft folds consistent with genuine leather",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched straight stitching at top trim and diagonal quilt lines, even but quilt motif not typical of vintage Coach classics",
                    "strap_construction": "dual rolled top handles, riveted to top edge and looped through D-rings on front-mounted leather tabs; no detachable crossbody strap shown",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-3: genuine leather handbag with brass-tone hardware in overall good condition",
                    "photo 5-6: tape shows ~8 in tall body with short top handles, consistent with small satchel"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: zip-top quilted satchel with stirrup handle mounts is not City Bag, Court, Station, Willis, Dinky or other classic; no creed, wordmark or turnlock to support Coach manufacture",
                    "Condition: Very Good to Excellent from exterior only; leather clean with light softening and no visible corner wear in photo 1-3, handles intact; capped because interior, bottom and lining not shown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.05,
                "vintage_probability": 0.35
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 32017,
            "output_tokens": 835,
            "total_tokens": 32852,
            "estimated_cost_usd": 0.014811
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 34230,
            "output_tokens": 1440,
            "total_tokens": 35670,
            "estimated_cost_usd": 0.007998
        }
    ]
}