Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.095,
    "vintage_probability": 0.73,
    "authenticity_confidence": 0.085,
    "image_quality_score": 0.705,
    "seller_misidentification_probability": 0.095,
    "confidence": 0.665,
    "recommended_max_bid": 12,
    "estimated_resale_low": 15,
    "estimated_resale_high": 42.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Structured brown leather handbag with a vintage frame closure, leather handles, brass-tone studs, and four protective feet.",
        "photo 3: Thick leather construction and a vintage-style framed silhouette are compatible with some older Coach or Bonnie Cashin-era designs, although not distinctive enough to identify Coach.",
        "photo 1, photo 2: genuine leather handbag with aged patina consistent with 1960s-1970s vintage",
        "photo 1-6: solid-appearing metal hardware and stitched leather base, not nylon or faux leather"
    ],
    "negative_evidence": [
        "photo 1: No visible COACH wordmark, horse-and-carriage mark, creed patch, or hangtag.",
        "photo 1: The closure is a large framed clasp rather than a recognizable Coach turnlock.",
        "photo 3: The highly reflective mixed-tone frame hardware and broad metal side plates are not strongly characteristic of classic vintage Coach construction.",
        "photo 1: Seller lists the bag as unbranded; this is weak evidence but is consistent with a generic vintage leather handbag.",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or hangtag visible",
        "photo 1-2: top closure is metal frame with kisslock-type clasp, not Coach turnlock",
        "photo 3,6: side frame is bright silver-tone while top clasp and rivets are brass-tone, mixed hardware tones",
        "photo 1-6: silhouette is structured frame satchel with riveted short handles and base feet, does not match catalog Coach classics",
        "photos 1-6: no interior shown so no lining, creed, or fabric tag can be verified"
    ],
    "missing_information": [
        "Interior view, especially the back wall and any leather creed patch or fabric label.",
        "Straight-on close-up of the frame clasp and all hardware.",
        "Close-up of any interior, zipper, or closure stamps.",
        "Full strap and handle attachment views.",
        "Seller-stated dimensions and a clear photo of the bag opened.",
        "interior views emptied including back wall and pockets where creed would sit",
        "creed patch straight-on close-up in raking light",
        "maker stamp or label inside or under frame",
        "hangtag both faces if present",
        "hardware engravings and zipper brand if any",
        "seller-stated dimensions for scale"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible, so the bag currently fits a generic vintage leather or lookalike handbag at least as well as a Coach item.",
        "The silhouette alone is insufficient to attribute it to Coach or the Bonnie Cashin line."
    ],
    "possible_model_reasoning": [
        "The framed top and structured body could loosely resemble some mid-century or early-1970s frame handbags, but no specific Coach catalog model can be supported from the visible features.",
        "Seller's 1960s\/1970s dating is unverified; construction suggests an older bag, but the era cannot be established without labels, interior details, or provenance.",
        "Condition: Good; substantial surface scratches, edge\/corner rubbing, and finish wear are visible in photos 1, 3, 4, and 7. Interior condition and odor are unknown.",
        "Frame satchel with kisslock-type frame does not match City Bag, Willis, Court, Station, Dinky or other turnlock classics; Cashin-era kisslock pieces were clutch-size Swinger\/Chubby Clutch\/Double Header types, not this doctor-satchel form with base feet",
        "No creed, wordmark, hangtag or turnlock geometry to support Coach manufacture",
        "Condition: Good; edge rubbing and color loss at corners and base in photo 4 and photo 5, surface scratches and scuffs in photo 1 and photo 2, handles show wear but appear intact; interior not shown so lining unknown and grade capped"
    ],
    "estimated_era": "unknown",
    "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: Large framed clasp with reflective silver\/champagne-tone metal side plates; brass-tone rivets\/studs and four visible base feet. No brand engraving is legible.",
        "leather_description": "photo 1: Brown smooth, glossy leather with visible scratches, scuffs, and lighter wear along the edges and lower corners.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: Two fixed narrow suede or suede-faced leather handles attached with riveted tabs; a shoulder strap is not clearly shown.",
        "stitching_description": "photo 3: Machine stitching appears generally even along the side and base seams, with some visible wear and dark edging."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0043,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.14,
                "vintage_probability": 0.76,
                "authenticity_confidence": 0.12,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.14,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Structured brown leather handbag with a vintage frame closure, leather handles, brass-tone studs, and four protective feet.",
                    "photo 3: Thick leather construction and a vintage-style framed silhouette are compatible with some older Coach or Bonnie Cashin-era designs, although not distinctive enough to identify Coach."
                ],
                "negative_evidence": [
                    "photo 1: No visible COACH wordmark, horse-and-carriage mark, creed patch, or hangtag.",
                    "photo 1: The closure is a large framed clasp rather than a recognizable Coach turnlock.",
                    "photo 3: The highly reflective mixed-tone frame hardware and broad metal side plates are not strongly characteristic of classic vintage Coach construction.",
                    "photo 1: Seller lists the bag as unbranded; this is weak evidence but is consistent with a generic vintage leather handbag."
                ],
                "missing_information": [
                    "Interior view, especially the back wall and any leather creed patch or fabric label.",
                    "Straight-on close-up of the frame clasp and all hardware.",
                    "Close-up of any interior, zipper, or closure stamps.",
                    "Full strap and handle attachment views.",
                    "Seller-stated dimensions and a clear photo of the bag opened."
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible, so the bag currently fits a generic vintage leather or lookalike handbag at least as well as a Coach item.",
                    "The silhouette alone is insufficient to attribute it to Coach or the Bonnie Cashin line."
                ],
                "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: Large framed clasp with reflective silver\/champagne-tone metal side plates; brass-tone rivets\/studs and four visible base feet. No brand engraving is legible.",
                    "leather_description": "photo 1: Brown smooth, glossy leather with visible scratches, scuffs, and lighter wear along the edges and lower corners.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: Two fixed narrow suede or suede-faced leather handles attached with riveted tabs; a shoulder strap is not clearly shown.",
                    "stitching_description": "photo 3: Machine stitching appears generally even along the side and base seams, with some visible wear and dark edging."
                },
                "possible_model_reasoning": [
                    "The framed top and structured body could loosely resemble some mid-century or early-1970s frame handbags, but no specific Coach catalog model can be supported from the visible features.",
                    "Seller's 1960s\/1970s dating is unverified; construction suggests an older bag, but the era cannot be established without labels, interior details, or provenance.",
                    "Condition: Good; substantial surface scratches, edge\/corner rubbing, and finish wear are visible in photos 1, 3, 4, and 7. Interior condition and odor are unknown."
                ],
                "confidence": 0.68,
                "recommended_max_bid": 12,
                "estimated_resale_low": 15,
                "estimated_resale_high": 50
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.05,
                "confidence": 0.65,
                "estimated_era": "unknown",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "interior views emptied including back wall and pockets where creed would sit",
                    "creed patch straight-on close-up in raking light",
                    "maker stamp or label inside or under frame",
                    "hangtag both faces if present",
                    "hardware engravings and zipper brand if any",
                    "seller-stated dimensions for scale"
                ],
                "negative_evidence": [
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or hangtag visible",
                    "photo 1-2: top closure is metal frame with kisslock-type clasp, not Coach turnlock",
                    "photo 3,6: side frame is bright silver-tone while top clasp and rivets are brass-tone, mixed hardware tones",
                    "photo 1-6: silhouette is structured frame satchel with riveted short handles and base feet, does not match catalog Coach classics",
                    "photos 1-6: no interior shown so no lining, creed, or fabric tag can be verified"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone top clasp and handle rivets with dull patina; side frame arms appear bright silver-tone in photo 3 and photo 6; four dome base feet on bottom photo 5",
                    "leather_description": "brown smooth leather with vintage patina, scuffs, scratches and edge rubbing visible in photo 1, photo 2, photo 4",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched stitching visible around base in photo 4 and photo 5, appears even but no close-up detail",
                    "strap_construction": "two short top handles in brown suede-back leather, riveted to frame with brass rivets, no shoulder strap shown",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1, photo 2: genuine leather handbag with aged patina consistent with 1960s-1970s vintage",
                    "photo 1-6: solid-appearing metal hardware and stitched leather base, not nylon or faux leather"
                ],
                "possible_model_reasoning": [
                    "Frame satchel with kisslock-type frame does not match City Bag, Willis, Court, Station, Dinky or other turnlock classics; Cashin-era kisslock pieces were clutch-size Swinger\/Chubby Clutch\/Double Header types, not this doctor-satchel form with base feet",
                    "No creed, wordmark, hangtag or turnlock geometry to support Coach manufacture",
                    "Condition: Good; edge rubbing and color loss at corners and base in photo 4 and photo 5, surface scratches and scuffs in photo 1 and photo 2, handles show wear but appear intact; interior not shown so lining unknown and grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.05,
                "vintage_probability": 0.7
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28781,
            "output_tokens": 888,
            "total_tokens": 29669,
            "estimated_cost_usd": 0.013644
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30094,
            "output_tokens": 1768,
            "total_tokens": 31862,
            "estimated_cost_usd": 0.007433
        }
    ]
}