Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.045,
    "vintage_probability": 0.3,
    "authenticity_confidence": 0.045,
    "image_quality_score": 0.77,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.81,
    "recommended_max_bid": 12,
    "estimated_resale_low": 15,
    "estimated_resale_high": 37.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: brown leather shoulder\/messenger handbag with substantial leather construction and brass-tone hardware",
        "photo 1: visible adjustable shoulder strap, flap, exterior pocket, and buckle closure",
        "photo 6: rear zip pocket and metal zipper pull are visible",
        "photo 1: leather shoulder\/messenger handbag with brass-tone hardware"
    ],
    "negative_evidence": [
        "photo 1: closure is a conventional buckle with two rivets, not a recognizable Coach turnlock",
        "photo 1: no COACH wordmark, horse-and-carriage, or leather hangtag is visible",
        "photo 1: construction and multi-buckle flap design appear generic rather than a documented vintage Coach silhouette",
        "photo 5: zipper pull appears to carry a non-Coach marking or symbol; no Coach marking is visible",
        "photo 1: leather has finished\/rolled edges and a smooth uniform surface, without clear evidence of vintage glove-tanned Coach leather",
        "listing title: seller identifies the bag as unbranded, which is consistent with the absence of visible Coach identifiers",
        "photo 1: front flap uses center buckle strap with two rivets, no turnlock and no Coach turnlock geometry",
        "photo 1,4: silhouette is buckle-flap messenger\/satchel with exterior back zip pocket, not a catalog Coach classic shape",
        "photo 5: back zipper pull stamped YKK, no COACH mark, no Talon \/ solid-brass vintage pull",
        "photo 6: strap attaches via plain rectangular metal rings\/loops with folded leather loops, not brass dogleash\/lobster clips or Coach buckle-slide construction",
        "photos 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible anywhere",
        "title claims plaid lining: fabric-lined vintage-style flap bag is inconsistent with unlined glove-tanned Coach classics"
    ],
    "missing_information": [
        "photo 1-7: interior is not shown open, so a creed patch, fabric label, lining, and any serial\/style number cannot be assessed",
        "photo 1-7: no straight-on close-up of the entire interior back wall or interior pockets",
        "photo 1-7: no bottom, full side, or corner-condition views",
        "photo 5: zipper-pull marking is not sufficiently clear to identify its maker",
        "photo of interior emptied and lining to verify plaid lining claimed in title",
        "creed patch straight-on in raking light and any interior back-wall \/ slip-pocket stamp",
        "hangtag both faces if present",
        "bottom and side views and interior zipper brand",
        "seller-stated dimensions for scale"
    ],
    "authenticity_concerns": [
        "photo 1: generic buckle-and-rivet closure does not match the classic Coach turnlock construction expected for many comparable vintage Coach bags",
        "photo 5: apparent non-Coach zipper marking is inconsistent with identifying this as a Coach bag, although the marking is not fully legible"
    ],
    "possible_model_reasoning": [
        "No Coach model is assigned because the bag lacks a visible Coach identifier and its buckle-flap messenger design is generic; it does not closely establish a Willis, Court, City Bag, or Station.",
        "Condition: Good; visible edge wear and abrasion\/fraying around strap and buckle areas (photos 1, 3, 4, 7), while the main leather panels remain intact. Interior condition and odor are unknown.",
        "No Coach model fits: buckle-flap closure, back exterior YKK zip, ring-loop strap attachment and (title-stated) plaid fabric lining do not match City Bag, Willis, Court, Station, Dinky or other classics which use turnlock and are unlined",
        "No creed, serial, wordmark or hangtag to decode; era cannot be Coach-dated",
        "Condition: Very Good to Excellent exterior; even color, no corner wear shown, strap intact, light edge darkening only; interior not shown so lining\/odor unknown, 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: brass-tone rectangular buckle, rivets, strap rings, and clips; no Coach engraving visible. photo 5: zipper pull has a small non-Coach-looking marking, not legible enough to transcribe.",
        "leather_description": "photo 1: smooth medium-brown leather or leather-like material with finished edges; surface appears fairly uniform and lightly glossy. The photos do not establish glove-tanned cowhide.",
        "lining_description": "not_visible",
        "strap_construction": "photo 1: long adjustable leather shoulder strap with buckle adjustment and metal attachment rings; edge wear\/fraying is visible near some strap sections.",
        "stitching_description": "photos 1-4: generally even brown perimeter and strap stitching, with some visible irregularity and wear near the buckle tabs."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0046,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.06,
                "vintage_probability": 0.45,
                "authenticity_confidence": 0.04,
                "image_quality_score": 0.86,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: brown leather shoulder\/messenger handbag with substantial leather construction and brass-tone hardware",
                    "photo 1: visible adjustable shoulder strap, flap, exterior pocket, and buckle closure",
                    "photo 6: rear zip pocket and metal zipper pull are visible"
                ],
                "negative_evidence": [
                    "photo 1: closure is a conventional buckle with two rivets, not a recognizable Coach turnlock",
                    "photo 1: no COACH wordmark, horse-and-carriage, or leather hangtag is visible",
                    "photo 1: construction and multi-buckle flap design appear generic rather than a documented vintage Coach silhouette",
                    "photo 5: zipper pull appears to carry a non-Coach marking or symbol; no Coach marking is visible",
                    "photo 1: leather has finished\/rolled edges and a smooth uniform surface, without clear evidence of vintage glove-tanned Coach leather",
                    "listing title: seller identifies the bag as unbranded, which is consistent with the absence of visible Coach identifiers"
                ],
                "missing_information": [
                    "photo 1-7: interior is not shown open, so a creed patch, fabric label, lining, and any serial\/style number cannot be assessed",
                    "photo 1-7: no straight-on close-up of the entire interior back wall or interior pockets",
                    "photo 1-7: no bottom, full side, or corner-condition views",
                    "photo 5: zipper-pull marking is not sufficiently clear to identify its maker"
                ],
                "authenticity_concerns": [
                    "photo 1: generic buckle-and-rivet closure does not match the classic Coach turnlock construction expected for many comparable vintage Coach bags",
                    "photo 5: apparent non-Coach zipper marking is inconsistent with identifying this as a Coach bag, although the marking is not fully legible"
                ],
                "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: brass-tone rectangular buckle, rivets, strap rings, and clips; no Coach engraving visible. photo 5: zipper pull has a small non-Coach-looking marking, not legible enough to transcribe.",
                    "leather_description": "photo 1: smooth medium-brown leather or leather-like material with finished edges; surface appears fairly uniform and lightly glossy. The photos do not establish glove-tanned cowhide.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: long adjustable leather shoulder strap with buckle adjustment and metal attachment rings; edge wear\/fraying is visible near some strap sections.",
                    "stitching_description": "photos 1-4: generally even brown perimeter and strap stitching, with some visible irregularity and wear near the buckle tabs."
                },
                "possible_model_reasoning": [
                    "No Coach model is assigned because the bag lacks a visible Coach identifier and its buckle-flap messenger design is generic; it does not closely establish a Willis, Court, City Bag, or Station.",
                    "Condition: Good; visible edge wear and abrasion\/fraying around strap and buckle areas (photos 1, 3, 4, 7), while the main leather panels remain intact. Interior condition and odor are unknown."
                ],
                "confidence": 0.84,
                "recommended_max_bid": 12,
                "estimated_resale_low": 15,
                "estimated_resale_high": 40
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.03,
                "confidence": 0.78,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.68,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo of interior emptied and lining to verify plaid lining claimed in title",
                    "creed patch straight-on in raking light and any interior back-wall \/ slip-pocket stamp",
                    "hangtag both faces if present",
                    "bottom and side views and interior zipper brand",
                    "seller-stated dimensions for scale"
                ],
                "negative_evidence": [
                    "photo 1: front flap uses center buckle strap with two rivets, no turnlock and no Coach turnlock geometry",
                    "photo 1,4: silhouette is buckle-flap messenger\/satchel with exterior back zip pocket, not a catalog Coach classic shape",
                    "photo 5: back zipper pull stamped YKK, no COACH mark, no Talon \/ solid-brass vintage pull",
                    "photo 6: strap attaches via plain rectangular metal rings\/loops with folded leather loops, not brass dogleash\/lobster clips or Coach buckle-slide construction",
                    "photos 1-6: no creed patch, no COACH wordmark, no horse-and-carriage, no leather hangtag visible anywhere",
                    "title claims plaid lining: fabric-lined vintage-style flap bag is inconsistent with unlined glove-tanned Coach classics"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "antique brass-tone buckle on front strap, small round rivets on flap, rectangular strap rings, YKK zipper on back exterior; plated appearance, not solid-brass vintage Coach hardware",
                    "leather_description": "medium-brown smooth leather with slight sheen, even tone, no glove-tanned grain\/patina visible",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched straight stitching around flap and body edges, visible in photo 2-3; no irregularity noted",
                    "strap_construction": "long adjustable crossbody\/shoulder strap in same leather, buckle-adjustable, fixed via metal rings in side loops",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1: leather shoulder\/messenger handbag with brass-tone hardware"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: buckle-flap closure, back exterior YKK zip, ring-loop strap attachment and (title-stated) plaid fabric lining do not match City Bag, Willis, Court, Station, Dinky or other classics which use turnlock and are unlined",
                    "No creed, serial, wordmark or hangtag to decode; era cannot be Coach-dated",
                    "Condition: Very Good to Excellent exterior; even color, no corner wear shown, strap intact, light edge darkening only; interior not shown so lining\/odor unknown, grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.15
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 33099,
            "output_tokens": 832,
            "total_tokens": 33931,
            "estimated_cost_usd": 0.015236
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 35570,
            "output_tokens": 1133,
            "total_tokens": 36703,
            "estimated_cost_usd": 0.00802
        }
    ]
}