Vintage Coach Hunter

{
    "is_handbag_probability": 0.965,
    "coach_probability": 0.02,
    "vintage_probability": 0.24,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.035,
    "confidence": 0.84,
    "recommended_max_bid": 8,
    "estimated_resale_low": 5,
    "estimated_resale_high": 25,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: bag is covered in black beadwork\/textile rather than Coach's characteristic leather or documented signature canvas.",
        "photo 1: visible closure is a small round snap on a fabric\/leather-like flap, not a recognizable vintage Coach turnlock.",
        "photo 1: long twisted cord strap and beaded construction are inconsistent with the common Coach leather handbag models.",
        "photo 2: no visible Coach wordmark, horse-and-carriage, leather hangtag, or creed patch.",
        "photo 2: back is entirely beaded and has no visible Coach branding.",
        "photo 3: bottom edge shows textile\/bead construction and loose threads, not a leather Coach base.",
        "photo 1: seller identifies the item as unbranded, which is consistent with the absence of brand identifiers but is weak evidence by itself.",
        "photo 1-6: body is all-over black glass beadwork, not glove-tanned cowhide",
        "photo 1: closure is silver-tone magnetic snap, not brass Coach turnlock geometry",
        "photo 1-6: thin twisted cord and beaded strap, no brass dogleash clips, buckles or leather strap",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible"
    ],
    "missing_information": [
        "photo 1: interior is not shown; request a clear photo of the lining, pockets, and any sewn-in label.",
        "photo 1: request close-ups of the snap, strap attachments, and any hidden labels or stamps.",
        "photo 2: request side and bottom construction photos in better light.",
        "seller-stated material, dimensions, age, and provenance are not provided.",
        "photo 1: interior not shown, lining and creed pocket unknown",
        "photo 1: no creed close-up to verify maker",
        "photo 1: snap brand stamp illegible, hardware close-up needed"
    ],
    "authenticity_concerns": [
        "photo 1: the beaded textile construction and lack of any visible Coach identifier make this a likely non-Coach lookalike or unrelated vintage evening bag, not an identifiable Coach model."
    ],
    "possible_model_reasoning": [
        "The approximately small rectangular silhouette and cord strap fit a generic beaded evening or shoulder purse, but no Coach catalog model is supported.",
        "photo 3: tape measure suggests a small handbag approximately 8\u20139 inches wide, but exact dimensions are not fully clear.",
        "Condition: Good\/Fair; visible loose threads or beadwork at the lower-right edge (photos 2\u20133), with interior, odor, and fastening function unknown.",
        "photo 1-6: beaded evening-bag silhouette ~8in wide x ~6in tall per tape measures does not match any catalog Coach classic style",
        "photo 1-6: beads, non-leather body and snap closure place bag in excluded-material population per triage, coach_probability <=0.05",
        "Condition: Good to Very Good externally; beadwork largely intact with minor loose threads at base corner photo 3-4, interior and odor unknown so grade capped"
    ],
    "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: small round metallic snap on a black flap; no Coach engraving is legible. photo 2: no additional branded hardware visible.",
        "leather_description": "photo 1: no clearly visible leather body; exterior appears to be black beadwork over textile, with a small black flap.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: long twisted black cord shoulder strap; attachment details are only partly visible.",
        "stitching_description": "photo 2: beaded\/textile edges are visible; some loose material appears at the lower-right edge. Conventional leather handbag stitching is not visible."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0025,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.02,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.05,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: bag is covered in black beadwork\/textile rather than Coach's characteristic leather or documented signature canvas.",
                    "photo 1: visible closure is a small round snap on a fabric\/leather-like flap, not a recognizable vintage Coach turnlock.",
                    "photo 1: long twisted cord strap and beaded construction are inconsistent with the common Coach leather handbag models.",
                    "photo 2: no visible Coach wordmark, horse-and-carriage, leather hangtag, or creed patch.",
                    "photo 2: back is entirely beaded and has no visible Coach branding.",
                    "photo 3: bottom edge shows textile\/bead construction and loose threads, not a leather Coach base.",
                    "photo 1: seller identifies the item as unbranded, which is consistent with the absence of brand identifiers but is weak evidence by itself."
                ],
                "missing_information": [
                    "photo 1: interior is not shown; request a clear photo of the lining, pockets, and any sewn-in label.",
                    "photo 1: request close-ups of the snap, strap attachments, and any hidden labels or stamps.",
                    "photo 2: request side and bottom construction photos in better light.",
                    "seller-stated material, dimensions, age, and provenance are not provided."
                ],
                "authenticity_concerns": [
                    "photo 1: the beaded textile construction and lack of any visible Coach identifier make this a likely non-Coach lookalike or unrelated vintage evening bag, not an identifiable Coach model."
                ],
                "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: small round metallic snap on a black flap; no Coach engraving is legible. photo 2: no additional branded hardware visible.",
                    "leather_description": "photo 1: no clearly visible leather body; exterior appears to be black beadwork over textile, with a small black flap.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: long twisted black cord shoulder strap; attachment details are only partly visible.",
                    "stitching_description": "photo 2: beaded\/textile edges are visible; some loose material appears at the lower-right edge. Conventional leather handbag stitching is not visible."
                },
                "possible_model_reasoning": [
                    "The approximately small rectangular silhouette and cord strap fit a generic beaded evening or shoulder purse, but no Coach catalog model is supported.",
                    "photo 3: tape measure suggests a small handbag approximately 8\u20139 inches wide, but exact dimensions are not fully clear.",
                    "Condition: Good\/Fair; visible loose threads or beadwork at the lower-right edge (photos 2\u20133), with interior, odor, and fastening function unknown."
                ],
                "confidence": 0.83,
                "recommended_max_bid": 8,
                "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": 0.55,
                "is_handbag_probability": 0.95,
                "missing_information": [
                    "photo 1: interior not shown, lining and creed pocket unknown",
                    "photo 1: no creed close-up to verify maker",
                    "photo 1: snap brand stamp illegible, hardware close-up needed"
                ],
                "negative_evidence": [
                    "photo 1-6: body is all-over black glass beadwork, not glove-tanned cowhide",
                    "photo 1: closure is silver-tone magnetic snap, not brass Coach turnlock geometry",
                    "photo 1-6: thin twisted cord and beaded strap, no brass dogleash clips, buckles or leather strap",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch or leather hangtag visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "photo 1: silver-tone snap button on small flap tab; no brass turnlock, D-rings or rivets visible",
                    "leather_description": "photo 1-6: no leather visible; exterior is black seed beads \/ bugle beads in wavy pattern",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible",
                    "strap_construction": "photo 1-2: long thin black twisted cord crossbody strap plus beaded strands; no adjustable buckle or clips shown",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "photo 1-6: beaded evening-bag silhouette ~8in wide x ~6in tall per tape measures does not match any catalog Coach classic style",
                    "photo 1-6: beads, non-leather body and snap closure place bag in excluded-material population per triage, coach_probability <=0.05",
                    "Condition: Good to Very Good externally; beadwork largely intact with minor loose threads at base corner photo 3-4, interior and odor unknown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 8,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
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            "model_name": "openai:gpt-5.6-luna",
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            "output_tokens": 813,
            "total_tokens": 25484,
            "estimated_cost_usd": 0.01182
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 25404,
            "output_tokens": 1239,
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}