Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.015,
    "vintage_probability": 0.165,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.815,
    "seller_misidentification_probability": 0.49,
    "confidence": 0.905,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 40,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a handbag with a shoulder strap and decorative woven construction.",
        "photo 5: Top zipper and interior compartments are visible."
    ],
    "negative_evidence": [
        "photo 1: Front is made from tightly woven multicolored straw or fiber in a circular tribal pattern, not Coach glove-tanned leather or Coach signature canvas.",
        "photo 2: No visible COACH wordmark, horse-and-carriage, creed patch, or leather hangtag.",
        "photo 3: Construction is woven straw\/fiber with braided leather-like edging and straps, unlike the cataloged vintage Coach leather silhouettes.",
        "photo 5: Visible zipper hardware and tan interior do not show Coach identifiers; the bag has a fabric or suede-like lining.",
        "photo 6: Interior is shown without any creed patch, serial number, or Coach label.",
        "photo 1: The distinctive tribal woven decoration and non-Coach construction strongly support an unbranded or artisan African-style bag.",
        "photo 2-3: coiled woven straw body with geometric pattern, not Coach glove-tanned leather",
        "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or leather hangtag visible",
        "photo 1-6: no solid-brass turnlock, dogleash clips, or Talon\/YKK branded vintage hardware visible",
        "photo 5-6: zip-top with plain leather gussets, not a Coach classic flap\/turnlock silhouette",
        "photo 4-5: braided thin leather handles and crossbody strap, not Coach buckle-adjustable strap construction"
    ],
    "missing_information": [
        "Photo of the entire back and bottom, although these are unlikely to change the non-Coach assessment.",
        "Close-up of the zipper pull and any interior labels or maker marks.",
        "Seller provenance or documentation if the claimed Nigerian origin is important to the buyer.",
        "No creed patch visible to transcribe - interior shows only plain tan leather with zip pocket",
        "No Coach wordmark, hangtag, or hardware stamps visible in any photo",
        "No bottom \/ hardware close-up beyond zipper pull in photo 5"
    ],
    "authenticity_concerns": [
        "No Coach identifiers are visible in the supplied photos.",
        "The woven straw\/fiber construction is inconsistent with the vintage Coach leather handbag population.",
        "The listing's title and description identify an African tribal-style bag rather than a Coach model; this is seller misidentification risk, not evidence of Coach manufacture.",
        "photo 2-3: woven straw \/ raffia body material inconsistent with vintage Coach glove-tanned cowhide construction",
        "photo 1-6: no Coach creed patch, wordmark, hangtag, or solid-brass turnlock visible"
    ],
    "possible_model_reasoning": [
        "No Coach model is a reasonable match because the bag is a circular patterned woven artisan-style purse rather than a cataloged Coach leather or signature-canvas silhouette.",
        "Condition appears approximately Very Good based on photos 1-6: the woven body and straps appear intact with no obvious major tears, though odor, hidden damage, and underside wear cannot be assessed.",
        "The seller-stated Nigerian\/African description is unverified but is visually more consistent with the bag than a Coach attribution.",
        "Silhouette is woven straw tribal crossbody with zip top, not matching any Coach catalog style in 4.2 or 4.3",
        "Materials per Step 1 triage: straw, beads, woven fiber = coach_probability <=0.05 unless Coach identifier visible; none visible",
        "Condition: Excellent per seller text; photos 2-6 show intact weave and clean tan trim with no major wear visible"
    ],
    "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 5: Metal zipper with a small plain pull is visible; no Coach engraving is visible. No turnlock or Coach-branded hardware is shown.",
        "leather_description": "photo 1: Braided tan edging and straps appear leather-like, while the body is tightly woven straw or plant fiber; exact materials cannot be confirmed from photos.",
        "lining_description": "photo 5: Tan fabric or suede-like interior is visible, with open compartments; no Coach label or creed is visible.",
        "strap_construction": "photos 1 and 4: Long braided tan shoulder strap attached through small tied or knotted leather-like fittings.",
        "stitching_description": "photos 3 and 5: Woven construction and wrapped edging are visible; conventional Coach leather-bag stitching is not apparent."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0348,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.01,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.88,
                "seller_misidentification_probability": 0.96,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a handbag with a shoulder strap and decorative woven construction.",
                    "photo 5: Top zipper and interior compartments are visible."
                ],
                "negative_evidence": [
                    "photo 1: Front is made from tightly woven multicolored straw or fiber in a circular tribal pattern, not Coach glove-tanned leather or Coach signature canvas.",
                    "photo 2: No visible COACH wordmark, horse-and-carriage, creed patch, or leather hangtag.",
                    "photo 3: Construction is woven straw\/fiber with braided leather-like edging and straps, unlike the cataloged vintage Coach leather silhouettes.",
                    "photo 5: Visible zipper hardware and tan interior do not show Coach identifiers; the bag has a fabric or suede-like lining.",
                    "photo 6: Interior is shown without any creed patch, serial number, or Coach label.",
                    "photo 1: The distinctive tribal woven decoration and non-Coach construction strongly support an unbranded or artisan African-style bag."
                ],
                "missing_information": [
                    "Photo of the entire back and bottom, although these are unlikely to change the non-Coach assessment.",
                    "Close-up of the zipper pull and any interior labels or maker marks.",
                    "Seller provenance or documentation if the claimed Nigerian origin is important to the buyer."
                ],
                "authenticity_concerns": [
                    "No Coach identifiers are visible in the supplied photos.",
                    "The woven straw\/fiber construction is inconsistent with the vintage Coach leather handbag population.",
                    "The listing's title and description identify an African tribal-style bag rather than a Coach model; this is seller misidentification risk, 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 5: Metal zipper with a small plain pull is visible; no Coach engraving is visible. No turnlock or Coach-branded hardware is shown.",
                    "leather_description": "photo 1: Braided tan edging and straps appear leather-like, while the body is tightly woven straw or plant fiber; exact materials cannot be confirmed from photos.",
                    "lining_description": "photo 5: Tan fabric or suede-like interior is visible, with open compartments; no Coach label or creed is visible.",
                    "strap_construction": "photos 1 and 4: Long braided tan shoulder strap attached through small tied or knotted leather-like fittings.",
                    "stitching_description": "photos 3 and 5: Woven construction and wrapped edging are visible; conventional Coach leather-bag stitching is not apparent."
                },
                "possible_model_reasoning": [
                    "No Coach model is a reasonable match because the bag is a circular patterned woven artisan-style purse rather than a cataloged Coach leather or signature-canvas silhouette.",
                    "Condition appears approximately Very Good based on photos 1-6: the woven body and straps appear intact with no obvious major tears, though odor, hidden damage, and underside wear cannot be assessed.",
                    "The seller-stated Nigerian\/African description is unverified but is visually more consistent with the bag than a Coach attribution."
                ],
                "confidence": 0.91,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 50
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [
                    "photo 2-3: woven straw \/ raffia body material inconsistent with vintage Coach glove-tanned cowhide construction",
                    "photo 1-6: no Coach creed patch, wordmark, hangtag, or solid-brass turnlock visible"
                ],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.9,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 30,
                "estimated_resale_low": 10,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "No creed patch visible to transcribe - interior shows only plain tan leather with zip pocket",
                    "No Coach wordmark, hangtag, or hardware stamps visible in any photo",
                    "No bottom \/ hardware close-up beyond zipper pull in photo 5"
                ],
                "negative_evidence": [
                    "photo 2-3: coiled woven straw body with geometric pattern, not Coach glove-tanned leather",
                    "photo 1-6: no creed patch, COACH wordmark, horse-and-carriage, or leather hangtag visible",
                    "photo 1-6: no solid-brass turnlock, dogleash clips, or Talon\/YKK branded vintage hardware visible",
                    "photo 5-6: zip-top with plain leather gussets, not a Coach classic flap\/turnlock silhouette",
                    "photo 4-5: braided thin leather handles and crossbody strap, not Coach buckle-adjustable strap construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone zipper with small pull in photo 5; no brass turnlock, no COACH stamping visible",
                    "leather_description": "tan leather trim and braided straps with coiled woven straw body in brown, cream, black; not glove-tanned cowhide",
                    "lining_description": "tan leather-like gusset\/interior visible in photo 5-6; no suede-back unlined glove-tanned interior, no fabric Coach lining",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "whip \/ overcast lashing around rim in photo 5-6; no tight matched straight stitching of Coach classics visible",
                    "strap_construction": "thin braided tan leather crossbody strap with knotted balls plus short braided top handles in photo 1-4",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Silhouette is woven straw tribal crossbody with zip top, not matching any Coach catalog style in 4.2 or 4.3",
                    "Materials per Step 1 triage: straw, beads, woven fiber = coach_probability <=0.05 unless Coach identifier visible; none visible",
                    "Condition: Excellent per seller text; photos 2-6 show intact weave and clean tan trim with no major wear visible"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.02,
                "vintage_probability": 0.3
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18114,
            "output_tokens": 825,
            "total_tokens": 18939,
            "estimated_cost_usd": 0.009226
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18665,
            "output_tokens": 1240,
            "total_tokens": 19905,
            "estimated_cost_usd": 0.004725
        }
    ]
}