Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.06,
    "vintage_probability": 0.665,
    "authenticity_confidence": 0.06,
    "image_quality_score": 0.795,
    "seller_misidentification_probability": 0.13,
    "confidence": 0.8,
    "recommended_max_bid": 16,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: structured black leather-looking handbag with a vintage-style rectangular silhouette.",
        "photo 5: gold-tone closure hardware and a fabric-lined interior are visible.",
        "photo 1-4: leather handbag with brass-tone hardware in black, broad population where vintage could hide",
        "photo 5: center flap closure with turning-tab type lock",
        "photo 4: hand scale suggests small structured handbag size"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, leather hangtag, or recognizable Coach turnlock.",
        "photo 5: the closure appears to be a small rectangular clasp rather than a classic Coach turnlock.",
        "photo 6: the interior shows a generic-looking fabric lining and zipper compartment; no legible Coach creed is visible.",
        "photos 1-4: the polished, highly uniform leather and angular flap construction do not strongly match typical unlined glove-tanned vintage Coach classics.",
        "photo 5, photo 6: no creed patch visible on interior back wall or slip pocket where Coach creed would sit",
        "photo 1-6: no COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 6: black fabric lining with zip pocket; vintage Coach classics are unlined suede-back glove-tanned, not fabric-lined",
        "photo 6: interior zip area stamped 'MADE IN CANADA' - not a Coach manufacturing country for this style\/era",
        "photo 1-3: twin fixed top-handle structured frame silhouette with pointed handle tabs does not match any Coach catalog style",
        "photo 1-4: smooth finished calf-like leather with sheen, not matte glove-tanned cowhide with natural grain"
    ],
    "missing_information": [
        "A straight-on, close-up photo of any interior label or stamped patch.",
        "A close-up of the faint interior stamp visible near the lower center of photo 6, with enough resolution to read it.",
        "Photos of the zipper pull, clasp back, bottom, and full interior compartments.",
        "Seller-stated dimensions and confirmation of whether the material is genuine leather.",
        "photo of any brand stamp \/ maker mark inside or on hardware close-up",
        "photo of bottom and corners straight-on for condition cap",
        "seller-stated dimensions for scale"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible in the provided photos, so this currently reads as a generic vintage leather handbag rather than an identifiable Coach model.",
        "The fabric-lined, polished construction and rectangular clasp do not provide the expected evidence for a classic glove-tanned Coach bag."
    ],
    "possible_model_reasoning": [
        "No Coach model is assigned because no Coach identifier or distinctive Coach construction is visible and the coach probability is below 0.10.",
        "The structured handled silhouette could fit several generic vintage handbag designs, but silhouette alone is insufficient for a Coach attribution.",
        "Condition: Good to Very Good; visible corner\/edge wear and interior dust or marks are present (photos 2-6), while the bag appears structurally intact. Bottom and full hardware details remain incomplete.",
        "No Coach model fits: twin-handle structured flap with square twist lock, fabric lining, Made in Canada, and pointed handle-tab construction are inconsistent with City Bag (9790), Willis (9927), Court (9870), Station (5130), or Cashin-era shapes",
        "Era reasoning: construction and Made in Canada label point to non-Coach vintage department-store bag, likely 1960s-1980s, but no Coach identifier to assign a Coach era; therefore unknown",
        "Condition: Very Good; exterior clean with light corner\/edge rubbing visible photo 2, photo 4, hardware tarnished photo 5, interior lining with light marks photo 6; no bottom shot so cannot grade higher"
    ],
    "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": "Gold-tone rectangular clasp hardware is visible in photo 5; no legible branding or classic Coach turnlock is visible.",
        "leather_description": "Black smooth, fine-grained leather-looking exterior with a glossy finish; material cannot be confirmed from photos.",
        "lining_description": "Dark fabric lining is visible in photos 5-6, with visible dust\/light marks and an interior zippered compartment.",
        "strap_construction": "Two long, narrow matching black shoulder handles attached through the upper body; stitching is visible at the attachment points.",
        "stitching_description": "Generally straight, even dark stitching is visible along the edges and handle attachments; some corner wear is visible in photos 2-4."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0021,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.08,
                "vintage_probability": 0.68,
                "authenticity_confidence": 0.07,
                "image_quality_score": 0.87,
                "seller_misidentification_probability": 0.22,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: structured black leather-looking handbag with a vintage-style rectangular silhouette.",
                    "photo 5: gold-tone closure hardware and a fabric-lined interior are visible."
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, leather hangtag, or recognizable Coach turnlock.",
                    "photo 5: the closure appears to be a small rectangular clasp rather than a classic Coach turnlock.",
                    "photo 6: the interior shows a generic-looking fabric lining and zipper compartment; no legible Coach creed is visible.",
                    "photos 1-4: the polished, highly uniform leather and angular flap construction do not strongly match typical unlined glove-tanned vintage Coach classics."
                ],
                "missing_information": [
                    "A straight-on, close-up photo of any interior label or stamped patch.",
                    "A close-up of the faint interior stamp visible near the lower center of photo 6, with enough resolution to read it.",
                    "Photos of the zipper pull, clasp back, bottom, and full interior compartments.",
                    "Seller-stated dimensions and confirmation of whether the material is genuine leather."
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible in the provided photos, so this currently reads as a generic vintage leather handbag rather than an identifiable Coach model.",
                    "The fabric-lined, polished construction and rectangular clasp do not provide the expected evidence for a classic glove-tanned Coach 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": false,
                    "hangtag_present": false,
                    "hardware_description": "Gold-tone rectangular clasp hardware is visible in photo 5; no legible branding or classic Coach turnlock is visible.",
                    "leather_description": "Black smooth, fine-grained leather-looking exterior with a glossy finish; material cannot be confirmed from photos.",
                    "lining_description": "Dark fabric lining is visible in photos 5-6, with visible dust\/light marks and an interior zippered compartment.",
                    "strap_construction": "Two long, narrow matching black shoulder handles attached through the upper body; stitching is visible at the attachment points.",
                    "stitching_description": "Generally straight, even dark stitching is visible along the edges and handle attachments; some corner wear is visible in photos 2-4."
                },
                "possible_model_reasoning": [
                    "No Coach model is assigned because no Coach identifier or distinctive Coach construction is visible and the coach probability is below 0.10.",
                    "The structured handled silhouette could fit several generic vintage handbag designs, but silhouette alone is insufficient for a Coach attribution.",
                    "Condition: Good to Very Good; visible corner\/edge wear and interior dust or marks are present (photos 2-6), while the bag appears structurally intact. Bottom and full hardware details remain incomplete."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 20,
                "estimated_resale_low": 10,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.04,
                "confidence": 0.78,
                "estimated_era": "unknown",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.72,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of any brand stamp \/ maker mark inside or on hardware close-up",
                    "photo of bottom and corners straight-on for condition cap",
                    "seller-stated dimensions for scale"
                ],
                "negative_evidence": [
                    "photo 5, photo 6: no creed patch visible on interior back wall or slip pocket where Coach creed would sit",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 6: black fabric lining with zip pocket; vintage Coach classics are unlined suede-back glove-tanned, not fabric-lined",
                    "photo 6: interior zip area stamped 'MADE IN CANADA' - not a Coach manufacturing country for this style\/era",
                    "photo 1-3: twin fixed top-handle structured frame silhouette with pointed handle tabs does not match any Coach catalog style",
                    "photo 1-4: smooth finished calf-like leather with sheen, not matte glove-tanned cowhide with natural grain"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone square twist\/tuck lock with rectangular keeper plates (photo 5); thin zip with brass-tone track in interior (photo 6); no COACH engraving visible; geometry chunky\/square, not Coach wide thin oval turnlock backplate",
                    "leather_description": "black smooth leather with fine crossgrain sheen (photo 1-4); stiff structured finish, not matte soft glove-tanned cowhide; no patina or natural scars\/veins visible",
                    "lining_description": "black fabric lining on flap underside and interior (photo 5, photo 6); interior zip pocket with fabric binding",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight edge stitching tone-on-tone around flap and body visible (photo 2, photo 3, photo 5); no mismatched thread visible at this resolution",
                    "strap_construction": "twin fixed short top handles stitched through pointed leather tabs on front body (photo 1, photo 2); no detachable crossbody strap, dogleash clips, buckle adjustment, or wooden dowel visible",
                    "turnlock_present": true
                },
                "positive_evidence": [
                    "photo 1-4: leather handbag with brass-tone hardware in black, broad population where vintage could hide",
                    "photo 5: center flap closure with turning-tab type lock",
                    "photo 4: hand scale suggests small structured handbag size"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: twin-handle structured flap with square twist lock, fabric lining, Made in Canada, and pointed handle-tab construction are inconsistent with City Bag (9790), Willis (9927), Court (9870), Station (5130), or Cashin-era shapes",
                    "Era reasoning: construction and Made in Canada label point to non-Coach vintage department-store bag, likely 1960s-1980s, but no Coach identifier to assign a Coach era; therefore unknown",
                    "Condition: Very Good; exterior clean with light corner\/edge rubbing visible photo 2, photo 4, hardware tarnished photo 5, interior lining with light marks photo 6; no bottom shot so cannot grade higher"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.04,
                "vintage_probability": 0.65
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18075,
            "output_tokens": 864,
            "total_tokens": 18939,
            "estimated_cost_usd": 0.009304
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18625,
            "output_tokens": 1748,
            "total_tokens": 20373,
            "estimated_cost_usd": 0.005123
        }
    ]
}