Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.025,
    "vintage_probability": 0.045,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.775,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.87,
    "recommended_max_bid": 6.5,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: the bag has a generic white crocodile-embossed baguette silhouette and prominent buckle decoration, with no visible Coach branding.",
        "photo 2: hardware is a large shiny buckle-style closure rather than a recognizable Coach vintage turnlock.",
        "photo 5: the visible interior is fabric-lined and no Coach creed patch or serial tag is shown.",
        "photo 6: the strap appears wrapped or stitched with synthetic-looking white material, unlike typical vintage glove-tanned Coach leather construction.",
        "photo 7: the back is unbranded and lacks a Coach wordmark, hangtag, or horse-and-carriage identifier.",
        "photo 1,4,6: white croc-embossed coated material with sheen, not vintage Coach glove-tanned cowhide",
        "photo 1,4: large gold-tone plated buckle as decoration, not Coach solid-brass turnlock geometry",
        "photo 2,6: magnetic snap closure, not turnlock",
        "photo 5: dark brown\/black fabric lining, not unlined suede-back glove-tanned interior of classics",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 3: thin cord-like fixed shoulder strap with metal tip, not Coach buckle-adjustable strap with brass slides or dogleash clips"
    ],
    "missing_information": [
        "photo 5: a straight-on close-up of every interior wall, pocket, and seam tag would be needed to fully exclude a hidden label.",
        "photo 2: close-ups of the buckle, snap, zipper, and strap attachment points would better assess materials and construction.",
        "seller-stated dimensions and material composition are not provided.",
        "photo 5: interior is dark and out of focus - no creed patch or fabric brand tag legible; need straight-on interior wall\/pocket shot",
        "photo 2: underside of front flap tab shows round metal snap - need any brand stamp on hardware",
        "photo 3: strap ends and attachment points not shown in detail"
    ],
    "authenticity_concerns": [
        "photo 1: the crocodile embossing, white finish, shiny plated hardware, and decorative buckle are consistent with a generic Y2K-style or lookalike bag rather than vintage Coach.",
        "photo 5: fabric lining and the absence of a visible creed are inconsistent with the classic unlined glove-tanned Coach silhouettes suggested by a vintage listing title.",
        "photo 6: the strap construction and surface finish appear more synthetic or coated than Coach's typical vintage leather construction."
    ],
    "possible_model_reasoning": [
        "photo 1: the compact baguette shape and buckle closure do not closely match the listed vintage Coach catalog silhouettes.",
        "photo 5: no readable creed or style number is visible, so there is no era or model evidence supporting Coach.",
        "photo 1: the seller's 'Y2K style' wording is broadly consistent with a modern or early-2000s fashion accessory, not proof of manufacture date.",
        "Condition: Good; visible edge wear, discoloration, and finish wear around the opening and corners (photos 2, 6, and 7); interior condition is only partially shown.",
        "No Coach identifier visible in any photo - no creed, no wordmark, no hangtag, no solid-brass turnlock - so no catalog match; silhouette is Y2K baguette with buckle-detail flap vaguely reminiscent of Chelsea Crossbody (8810) but leather, lining, hardware and strap are inconsistent with Coach",
        "Era reasoning: croc-embossed white baguette with plated buckle and fabric lining is 2000s+ fast-fashion Y2K style, not pre-2000 glove-tanned era",
        "Condition: Very Good to Good; exterior shows light soiling\/edge wear but no major tears (photo 4,6), interior not fully gradable due to dark photo 5"
    ],
    "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: shiny gold-tone rectangular buckle with a central prong or bar; no Coach engraving visible. photo 2: additional shiny snap hardware is visible.",
        "leather_description": "photo 1: white crocodile-pattern embossed material with a uniform coated appearance; genuine leather versus synthetic material cannot be confirmed from photos.",
        "lining_description": "photo 5: dark fabric lining is visible inside the main compartment; no label or creed is visible.",
        "strap_construction": "photos 1, 3, and 4: narrow white shoulder strap with wrapped or stitched sections and metal end caps; no adjustable Coach-style leather strap hardware visible.",
        "stitching_description": "photos 2, 6, and 7: perimeter stitching is visible but appears ordinary and somewhat uneven in places; no distinctive Coach construction feature is evident."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0024,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.03,
                "vintage_probability": 0.04,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.9,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: the bag has a generic white crocodile-embossed baguette silhouette and prominent buckle decoration, with no visible Coach branding.",
                    "photo 2: hardware is a large shiny buckle-style closure rather than a recognizable Coach vintage turnlock.",
                    "photo 5: the visible interior is fabric-lined and no Coach creed patch or serial tag is shown.",
                    "photo 6: the strap appears wrapped or stitched with synthetic-looking white material, unlike typical vintage glove-tanned Coach leather construction.",
                    "photo 7: the back is unbranded and lacks a Coach wordmark, hangtag, or horse-and-carriage identifier."
                ],
                "missing_information": [
                    "photo 5: a straight-on close-up of every interior wall, pocket, and seam tag would be needed to fully exclude a hidden label.",
                    "photo 2: close-ups of the buckle, snap, zipper, and strap attachment points would better assess materials and construction.",
                    "seller-stated dimensions and material composition are not provided."
                ],
                "authenticity_concerns": [
                    "photo 1: the crocodile embossing, white finish, shiny plated hardware, and decorative buckle are consistent with a generic Y2K-style or lookalike bag rather than vintage Coach.",
                    "photo 5: fabric lining and the absence of a visible creed are inconsistent with the classic unlined glove-tanned Coach silhouettes suggested by a vintage listing title.",
                    "photo 6: the strap construction and surface finish appear more synthetic or coated than Coach's typical vintage leather construction."
                ],
                "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: shiny gold-tone rectangular buckle with a central prong or bar; no Coach engraving visible. photo 2: additional shiny snap hardware is visible.",
                    "leather_description": "photo 1: white crocodile-pattern embossed material with a uniform coated appearance; genuine leather versus synthetic material cannot be confirmed from photos.",
                    "lining_description": "photo 5: dark fabric lining is visible inside the main compartment; no label or creed is visible.",
                    "strap_construction": "photos 1, 3, and 4: narrow white shoulder strap with wrapped or stitched sections and metal end caps; no adjustable Coach-style leather strap hardware visible.",
                    "stitching_description": "photos 2, 6, and 7: perimeter stitching is visible but appears ordinary and somewhat uneven in places; no distinctive Coach construction feature is evident."
                },
                "possible_model_reasoning": [
                    "photo 1: the compact baguette shape and buckle closure do not closely match the listed vintage Coach catalog silhouettes.",
                    "photo 5: no readable creed or style number is visible, so there is no era or model evidence supporting Coach.",
                    "photo 1: the seller's 'Y2K style' wording is broadly consistent with a modern or early-2000s fashion accessory, not proof of manufacture date.",
                    "Condition: Good; visible edge wear, discoloration, and finish wear around the opening and corners (photos 2, 6, and 7); interior condition is only partially shown."
                ],
                "confidence": 0.89,
                "recommended_max_bid": 5,
                "estimated_resale_low": 5,
                "estimated_resale_high": 30
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.85,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 20,
                "estimated_resale_low": 5,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 5: interior is dark and out of focus - no creed patch or fabric brand tag legible; need straight-on interior wall\/pocket shot",
                    "photo 2: underside of front flap tab shows round metal snap - need any brand stamp on hardware",
                    "photo 3: strap ends and attachment points not shown in detail"
                ],
                "negative_evidence": [
                    "photo 1,4,6: white croc-embossed coated material with sheen, not vintage Coach glove-tanned cowhide",
                    "photo 1,4: large gold-tone plated buckle as decoration, not Coach solid-brass turnlock geometry",
                    "photo 2,6: magnetic snap closure, not turnlock",
                    "photo 5: dark brown\/black fabric lining, not unlined suede-back glove-tanned interior of classics",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 3: thin cord-like fixed shoulder strap with metal tip, not Coach buckle-adjustable strap with brass slides or dogleash clips"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone plated buckle on front tab and round magnetic snap under flap (photo 2,4); thin strap end cap (photo 3); plated, not solid vintage brass",
                    "leather_description": "white\/off-white croc-embossed material with pebbled texture and slight sheen (photo 1,4,6); appears coated\/faux, not matte glove-tanned full-grain",
                    "lining_description": "dark brown\/black fabric lining visible in top-down interior view (photo 5)",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-on-tone edge stitching around body and flap tab, no detail of stress points visible",
                    "strap_construction": "thin fixed-length shoulder strap in same white croc-embossed material, knotted\/tied at top in photo 3, attached directly at bag ends",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifier visible in any photo - no creed, no wordmark, no hangtag, no solid-brass turnlock - so no catalog match; silhouette is Y2K baguette with buckle-detail flap vaguely reminiscent of Chelsea Crossbody (8810) but leather, lining, hardware and strap are inconsistent with Coach",
                    "Era reasoning: croc-embossed white baguette with plated buckle and fabric lining is 2000s+ fast-fashion Y2K style, not pre-2000 glove-tanned era",
                    "Condition: Very Good to Good; exterior shows light soiling\/edge wear but no major tears (photo 4,6), interior not fully gradable due to dark photo 5"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 33102,
            "output_tokens": 874,
            "total_tokens": 33976,
            "estimated_cost_usd": 0.015338
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 35573,
            "output_tokens": 1450,
            "total_tokens": 37023,
            "estimated_cost_usd": 0.008275
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}