Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.065,
    "vintage_probability": 0.485,
    "authenticity_confidence": 0.055,
    "image_quality_score": 0.735,
    "seller_misidentification_probability": 0.065,
    "confidence": 0.75,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 20,
    "estimated_resale_high": 50,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a leather crossbody handbag with a vintage-style flap silhouette.",
        "photo 2: Visible leather strap attachment uses substantial brass-tone loop hardware and reinforced stitching.",
        "photo 5: Interior appears to have a suede-like lining, zip pocket, and snap pocket, consistent with a constructed leather handbag.",
        "photo 1-4: leather handbag with brass-tone hardware in crossbody saddle shape - population where misidentified Coach could hide",
        "photo 6: interior zip pocket at wall as on many flap bags",
        "photo 2: solid-looking brass-tone D-ring and rivets, not hollow chrome or plastic"
    ],
    "negative_evidence": [
        "photo 1: No visible COACH wordmark, horse-and-carriage emblem, or leather hangtag.",
        "photo 3: Closure is a long decorative strap with a buckle-like keeper, not a recognizable vintage Coach turnlock.",
        "photo 3: The oval decorative hardware and strap closure do not closely match the standard Coach classic silhouettes shown in the reference catalog.",
        "photo 5: No creed patch is visible on the interior wall or under the flap.",
        "photo 6: No Coach identifier or readable style\/serial marking is visible around the zipper or lining.",
        "listing text: Seller describes the item as handmade vintage and does not identify Coach; this is weak evidence but consistent with a generic or independent leather bag.",
        "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 3,4: closure is center vertical strap with bar\/loop, not Coach turnlock geometry - turnlock absent",
        "photo 1-4: light contrast stitching around flap and body, not tone-matched tight Coach stitching",
        "photo 3,4: saddle flap with oval keeper and center strap silhouette matches no vintage Coach catalog style",
        "photo 5,6: snap pocket under flap and zip pocket layout with beige suede-like lining, no Coach creed on back wall shown"
    ],
    "missing_information": [
        "photo request: Straight-on close-up of every interior wall and pocket, especially any sewn leather creed patch or fabric tag.",
        "photo request: Close-up of all hardware, zipper pull, underside of the flap, and strap attachments for maker stamps.",
        "photo request: Clear bottom, back, and full strap photos, including buckle holes and ends.",
        "photo request: Any interior label, embossed stamp, or country-of-origin marking not shown in the current photos.",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light not shown",
        "no legible Coach wordmark, creed, or serial visible in any photo - need hardware stamp close-ups",
        "no bottom \/ corners \/ back exterior view to grade wear",
        "no hangtag views (both faces) if present"
    ],
    "authenticity_concerns": [
        "No Coach-specific identifier is visible despite multiple interior and exterior views.",
        "The decorative oval-and-strap closure and overall construction are more consistent with an unbranded handmade or lookalike leather bag than a cataloged vintage Coach model.",
        "Seller's NWOT claim cannot be verified from photos and is not evidence of Coach manufacture."
    ],
    "possible_model_reasoning": [
        "No Coach model is assigned because the visible closure, lack of identifiers, and decorative construction do not provide a reliable match to a Coach catalog style.",
        "The seller-stated dimensions and crossbody format are broadly compatible with many vintage leather handbags but do not establish a Coach model.",
        "Condition: Like New or Excellent visually, based on the seller's NWOT claim and the clean exterior photos; this is limited because odor, hidden wear, and full interior condition cannot be verified.",
        "No Coach identifier visible so no catalog match is supportable; center-strap saddle with contrast stitching and snap front pocket does not match City Bag (9790), Court (9870), Station (5130), Dinky (9375) or other turnlock classics; Condition: Like New to Excellent appearance in shown views - leather uniform with sheen, no corner wear shown, strap looks intact, but no bottom\/interior-full views so grade capped and lining\/hardware stamps unknown"
    ],
    "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 2: Gold\/brass-tone loop and riveted strap attachment; photo 3: oval decorative keeper with a long central strap and buckle-like lower fitting; no visible maker engraving.",
        "leather_description": "photos 1-5: Brown, smooth-to-finely textured leather with a glossy finish and contrasting light stitching; appears genuine leather, but exact tannage is not determinable.",
        "lining_description": "photos 5-6: Beige\/tan suede-like lining is visible, with an interior zip pocket; condition and material are not fully verifiable.",
        "strap_construction": "photos 1-3: Wide adjustable leather crossbody strap with stitched edges, riveted\/stitched side attachment, and visible buckle adjustment.",
        "stitching_description": "photos 1-5: Visible contrasting tan stitching is generally even and decorative, including around the flap, body, strap, and pockets."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0091,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.08,
                "vintage_probability": 0.72,
                "authenticity_confidence": 0.06,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a leather crossbody handbag with a vintage-style flap silhouette.",
                    "photo 2: Visible leather strap attachment uses substantial brass-tone loop hardware and reinforced stitching.",
                    "photo 5: Interior appears to have a suede-like lining, zip pocket, and snap pocket, consistent with a constructed leather handbag."
                ],
                "negative_evidence": [
                    "photo 1: No visible COACH wordmark, horse-and-carriage emblem, or leather hangtag.",
                    "photo 3: Closure is a long decorative strap with a buckle-like keeper, not a recognizable vintage Coach turnlock.",
                    "photo 3: The oval decorative hardware and strap closure do not closely match the standard Coach classic silhouettes shown in the reference catalog.",
                    "photo 5: No creed patch is visible on the interior wall or under the flap.",
                    "photo 6: No Coach identifier or readable style\/serial marking is visible around the zipper or lining.",
                    "listing text: Seller describes the item as handmade vintage and does not identify Coach; this is weak evidence but consistent with a generic or independent leather bag."
                ],
                "missing_information": [
                    "photo request: Straight-on close-up of every interior wall and pocket, especially any sewn leather creed patch or fabric tag.",
                    "photo request: Close-up of all hardware, zipper pull, underside of the flap, and strap attachments for maker stamps.",
                    "photo request: Clear bottom, back, and full strap photos, including buckle holes and ends.",
                    "photo request: Any interior label, embossed stamp, or country-of-origin marking not shown in the current photos."
                ],
                "authenticity_concerns": [
                    "No Coach-specific identifier is visible despite multiple interior and exterior views.",
                    "The decorative oval-and-strap closure and overall construction are more consistent with an unbranded handmade or lookalike leather bag than a cataloged vintage Coach model.",
                    "Seller's NWOT claim cannot be verified from photos and is not evidence of Coach manufacture."
                ],
                "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 2: Gold\/brass-tone loop and riveted strap attachment; photo 3: oval decorative keeper with a long central strap and buckle-like lower fitting; no visible maker engraving.",
                    "leather_description": "photos 1-5: Brown, smooth-to-finely textured leather with a glossy finish and contrasting light stitching; appears genuine leather, but exact tannage is not determinable.",
                    "lining_description": "photos 5-6: Beige\/tan suede-like lining is visible, with an interior zip pocket; condition and material are not fully verifiable.",
                    "strap_construction": "photos 1-3: Wide adjustable leather crossbody strap with stitched edges, riveted\/stitched side attachment, and visible buckle adjustment.",
                    "stitching_description": "photos 1-5: Visible contrasting tan stitching is generally even and decorative, including around the flap, body, strap, and pockets."
                },
                "possible_model_reasoning": [
                    "No Coach model is assigned because the visible closure, lack of identifiers, and decorative construction do not provide a reliable match to a Coach catalog style.",
                    "The seller-stated dimensions and crossbody format are broadly compatible with many vintage leather handbags but do not establish a Coach model.",
                    "Condition: Like New or Excellent visually, based on the seller's NWOT claim and the clean exterior photos; this is limited because odor, hidden wear, and full interior condition cannot be verified."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 12,
                "estimated_resale_low": 20,
                "estimated_resale_high": 60
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.05,
                "confidence": 0.72,
                "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 back wall \/ slip pocket for creed patch straight-on in raking light not shown",
                    "no legible Coach wordmark, creed, or serial visible in any photo - need hardware stamp close-ups",
                    "no bottom \/ corners \/ back exterior view to grade wear",
                    "no hangtag views (both faces) if present"
                ],
                "negative_evidence": [
                    "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 3,4: closure is center vertical strap with bar\/loop, not Coach turnlock geometry - turnlock absent",
                    "photo 1-4: light contrast stitching around flap and body, not tone-matched tight Coach stitching",
                    "photo 3,4: saddle flap with oval keeper and center strap silhouette matches no vintage Coach catalog style",
                    "photo 5,6: snap pocket under flap and zip pocket layout with beige suede-like lining, no Coach creed on back wall shown"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone \/ gold-tone hardware: rectangular buckle on adjustable strap, D-ring and rivets at strap anchor (photo 2), small bar at strap tip (photo 3,4), snap on front pocket (photo 5), metal zip slider (photo 6); tone aged but geometry not Coach turnlock",
                    "leather_description": "dark brown pebbled \/ grained leather with sheen, visible grain and creasing; flap and body edged with contrast stitching",
                    "lining_description": "beige \/ tan suede-like napped lining visible in interior zip area (photo 6); seller states beige suede lining",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "light tan \/ off-white contrast stitching around flap perimeter and body, even but not tone-matched; oval detail stitching on front (photo 3,4)",
                    "strap_construction": "long adjustable crossbody strap with brass-tone buckle, attached via D-ring \/ riveted leather tabs at sides",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1-4: leather handbag with brass-tone hardware in crossbody saddle shape - population where misidentified Coach could hide",
                    "photo 6: interior zip pocket at wall as on many flap bags",
                    "photo 2: solid-looking brass-tone D-ring and rivets, not hollow chrome or plastic"
                ],
                "possible_model_reasoning": [
                    "No Coach identifier visible so no catalog match is supportable; center-strap saddle with contrast stitching and snap front pocket does not match City Bag (9790), Court (9870), Station (5130), Dinky (9375) or other turnlock classics; Condition: Like New to Excellent appearance in shown views - leather uniform with sheen, no corner wear shown, strap looks intact, but no bottom\/interior-full views so grade capped and lining\/hardware stamps unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.05,
                "vintage_probability": 0.25
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17756,
            "output_tokens": 964,
            "total_tokens": 18720,
            "estimated_cost_usd": 0.009416
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18096,
            "output_tokens": 1212,
            "total_tokens": 19308,
            "estimated_cost_usd": 0.004589
        }
    ]
}