Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.06,
    "vintage_probability": 0.265,
    "authenticity_confidence": 0.055,
    "image_quality_score": 0.715,
    "seller_misidentification_probability": 0.06,
    "confidence": 0.75,
    "recommended_max_bid": 12.5,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 35,
    "possible_models": [],
    "positive_evidence": [
        "photo 4: leather-like black shoulder handbag with a flap and metal closure, a general construction type sometimes seen in vintage Coach bags",
        "photo 6: seller provides approximately 11-inch width, consistent with a small handbag",
        "photo 4, photo 6: black leather flap shoulder bag silhouette broadly of vintage shoulder-bag type"
    ],
    "negative_evidence": [
        "photo 1: closure is an ornate gold-tone oval-and-plate embellishment rather than a recognizable Coach turnlock",
        "photo 2: interior is fabric-lined with multiple zip compartments, unlike many classic unlined glove-tanned Coach styles",
        "photo 4: narrow fixed-length shoulder strap and smooth glossy leather-like exterior do not strongly match a catalogued vintage Coach silhouette",
        "photos 1-6: no legible COACH wordmark, horse-and-carriage mark, creed patch, serial\/style number, or Coach hangtag is visible",
        "photo 5: leather appears thin and highly smooth\/glossy, with piping and construction more typical of a generic fashion handbag",
        "photo 2: zipper hardware and interior construction show no visible Coach-specific markings",
        "photo 1: clasp is bright gold-plated ornate shield with oval knob, not Coach solid-brass turnlock geometry with wide thin oval back plate and slim rounded tab",
        "photo 2, photo 3: interior is black fabric-lined with center zip dividers, not unlined suede-back glove-tanned leather of vintage Coach classics",
        "photo 2, photo 3, photo 4: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible in any view",
        "photo 4, photo 6: thin fixed non-adjustable strap with no brass buckle slide or dogleash clips, unlike Coach adjustable \/ detachable straps",
        "photo 4, photo 5, photo 6: leather is smooth high-sheen coated leather with piping, not matte glove-tanned full-grain with natural scars\/veins"
    ],
    "missing_information": [
        "Straight-on photo of the entire interior back wall and all pockets to verify whether a creed patch or fabric brand tag is present",
        "Close-up photos of both sides of the closure and all zipper pulls for possible maker markings",
        "Photos of the strap attachment points, bottom, corners, and interior labels",
        "Seller-stated material details and any brand markings not visible in the supplied photos",
        "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
        "photo of hangtag both faces if present",
        "photo of hardware engravings \/ zipper-pull brand stamp",
        "photo of bottom and corners"
    ],
    "authenticity_concerns": [
        "The ornate decorative clasp, lined multi-compartment interior, and glossy thin-looking leather are inconsistent with the most recognizable classic vintage Coach construction",
        "No Coach identifier is visible; silhouette alone is insufficient to attribute the bag to Coach"
    ],
    "possible_model_reasoning": [
        "The flap-and-clasp format is not enough to match a specific Coach model, and the clasp geometry does not resemble the classic Coach turnlock catalog styles.",
        "The fully lined, multi-zip interior and fixed narrow strap favor a generic vintage or modern fashion shoulder bag over a classic unlined glove-tanned Coach bag.",
        "Condition appears Very Good: visible body creasing and some surface wear, but no obvious tears, broken hardware, or major corner damage; bottom and detailed strap condition are incompletely shown.",
        "No Coach identifiers visible to decode; construction (fabric lining, plated ornate twist clasp, fixed strap, coated shiny leather) inconsistent with 1970s-1990s Coach classics which are unlined glove-tanned with solid-brass Coach turnlock geometry",
        "Closest Coach shapes would be small flap crossbodies like Pocket Purse (9755) or Chelsea Crossbody (8810) but hardware, lining and strap do not match, so no Coach model is supportable",
        "Condition: Very Good to Excellent for a generic bag; exterior clean with light sheen (photo 4, photo 5), interior clean (photo 2, photo 3), but bottom\/corners and strap fold not fully shown so capped"
    ],
    "estimated_era": "modern (2000s+), non-Coach",
    "observed_features": {
        "creed_present": false,
        "serial_or_style_number_present": false,
        "coach_wordmark_present": false,
        "turnlock_present": true,
        "hangtag_present": false,
        "creed_text": "not_visible",
        "serial_or_style_number": "not_visible",
        "hardware_description": "photo 1 and photo 6: gold-tone decorative clasp with a rectangular upper plate, polygonal lower plate, and oval central element; no visible engraving",
        "leather_description": "photos 4-6: black smooth, glossy leather-like material with soft creasing; exact material cannot be confirmed",
        "lining_description": "photos 2-3: dark fabric-like lining with multiple internal zip compartments; no label visible",
        "strap_construction": "photos 4-6: narrow fixed-length shoulder strap attached at side rings; no adjustment hardware visible",
        "stitching_description": "photos 1-6: generally even visible edge stitching and piping, though close stress-point inspection is limited"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0019,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.08,
                "vintage_probability": 0.18,
                "authenticity_confidence": 0.06,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 4: leather-like black shoulder handbag with a flap and metal closure, a general construction type sometimes seen in vintage Coach bags",
                    "photo 6: seller provides approximately 11-inch width, consistent with a small handbag"
                ],
                "negative_evidence": [
                    "photo 1: closure is an ornate gold-tone oval-and-plate embellishment rather than a recognizable Coach turnlock",
                    "photo 2: interior is fabric-lined with multiple zip compartments, unlike many classic unlined glove-tanned Coach styles",
                    "photo 4: narrow fixed-length shoulder strap and smooth glossy leather-like exterior do not strongly match a catalogued vintage Coach silhouette",
                    "photos 1-6: no legible COACH wordmark, horse-and-carriage mark, creed patch, serial\/style number, or Coach hangtag is visible",
                    "photo 5: leather appears thin and highly smooth\/glossy, with piping and construction more typical of a generic fashion handbag",
                    "photo 2: zipper hardware and interior construction show no visible Coach-specific markings"
                ],
                "missing_information": [
                    "Straight-on photo of the entire interior back wall and all pockets to verify whether a creed patch or fabric brand tag is present",
                    "Close-up photos of both sides of the closure and all zipper pulls for possible maker markings",
                    "Photos of the strap attachment points, bottom, corners, and interior labels",
                    "Seller-stated material details and any brand markings not visible in the supplied photos"
                ],
                "authenticity_concerns": [
                    "The ornate decorative clasp, lined multi-compartment interior, and glossy thin-looking leather are inconsistent with the most recognizable classic vintage Coach construction",
                    "No Coach identifier is visible; silhouette alone is insufficient to attribute the bag to Coach"
                ],
                "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": true,
                    "hangtag_present": false,
                    "hardware_description": "photo 1 and photo 6: gold-tone decorative clasp with a rectangular upper plate, polygonal lower plate, and oval central element; no visible engraving",
                    "leather_description": "photos 4-6: black smooth, glossy leather-like material with soft creasing; exact material cannot be confirmed",
                    "lining_description": "photos 2-3: dark fabric-like lining with multiple internal zip compartments; no label visible",
                    "strap_construction": "photos 4-6: narrow fixed-length shoulder strap attached at side rings; no adjustment hardware visible",
                    "stitching_description": "photos 1-6: generally even visible edge stitching and piping, though close stress-point inspection is limited"
                },
                "possible_model_reasoning": [
                    "The flap-and-clasp format is not enough to match a specific Coach model, and the clasp geometry does not resemble the classic Coach turnlock catalog styles.",
                    "The fully lined, multi-zip interior and fixed narrow strap favor a generic vintage or modern fashion shoulder bag over a classic unlined glove-tanned Coach bag.",
                    "Condition appears Very Good: visible body creasing and some surface wear, but no obvious tears, broken hardware, or major corner damage; bottom and detailed strap condition are incompletely shown."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 15,
                "estimated_resale_low": 15,
                "estimated_resale_high": 45
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.05,
                "coach_probability": 0.04,
                "confidence": 0.72,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of interior back wall \/ slip pocket for creed patch straight-on in raking light",
                    "photo of hangtag both faces if present",
                    "photo of hardware engravings \/ zipper-pull brand stamp",
                    "photo of bottom and corners"
                ],
                "negative_evidence": [
                    "photo 1: clasp is bright gold-plated ornate shield with oval knob, not Coach solid-brass turnlock geometry with wide thin oval back plate and slim rounded tab",
                    "photo 2, photo 3: interior is black fabric-lined with center zip dividers, not unlined suede-back glove-tanned leather of vintage Coach classics",
                    "photo 2, photo 3, photo 4: no creed patch, no COACH wordmark, no horse-and-carriage, no hangtag visible in any view",
                    "photo 4, photo 6: thin fixed non-adjustable strap with no brass buckle slide or dogleash clips, unlike Coach adjustable \/ detachable straps",
                    "photo 4, photo 5, photo 6: leather is smooth high-sheen coated leather with piping, not matte glove-tanned full-grain with natural scars\/veins"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "bright gold-tone plated flap clasp with rectangular hasp and shield-shaped base plate with oval turning knob (photo 1, photo 6); thin dark zipper sliders in interior (photo 2, photo 3); no solid-brass Coach turnlock, D-rings, buckles or dogleash clips visible",
                    "leather_description": "black smooth leather with high-gloss coated finish and pebbled emboss (photo 1, photo 4, photo 5); does not show matte glove-tanned grain, patina or natural scars\/veins",
                    "lining_description": "black synthetic fabric lining with zippered compartments (photo 2, photo 3); not unlined suede",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "dark straight edge stitching around flap (photo 1, photo 6); no mismatched thread visible but no close-up of stress points",
                    "strap_construction": "thin flat fixed-length shoulder strap, non-adjustable, attached at sides with small metal rings (photo 4); seller states strap is fixed and not adjustable",
                    "turnlock_present": true
                },
                "positive_evidence": [
                    "photo 4, photo 6: black leather flap shoulder bag silhouette broadly of vintage shoulder-bag type"
                ],
                "possible_model_reasoning": [
                    "No Coach identifiers visible to decode; construction (fabric lining, plated ornate twist clasp, fixed strap, coated shiny leather) inconsistent with 1970s-1990s Coach classics which are unlined glove-tanned with solid-brass Coach turnlock geometry",
                    "Closest Coach shapes would be small flap crossbodies like Pocket Purse (9755) or Chelsea Crossbody (8810) but hardware, lining and strap do not match, so no Coach model is supportable",
                    "Condition: Very Good to Excellent for a generic bag; exterior clean with light sheen (photo 4, photo 5), interior clean (photo 2, photo 3), but bottom\/corners and strap fold not fully shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.04,
                "vintage_probability": 0.35
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17706,
            "output_tokens": 831,
            "total_tokens": 18537,
            "estimated_cost_usd": 0.009077
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18040,
            "output_tokens": 1674,
            "total_tokens": 19714,
            "estimated_cost_usd": 0.004947
        }
    ]
}