Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.085,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.83,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.905,
    "recommended_max_bid": 20,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 50,
    "possible_models": [],
    "positive_evidence": [
        "photo 3: the bag is constructed from leather with brass-tone hardware and a crossbody strap, features that can occur on vintage Coach bags",
        "photo 2: solid brass-tone hardware and leather bag - generic population where Coach hides, but no Coach-specific detail"
    ],
    "negative_evidence": [
        "photo 4: the interior leather is clearly embossed 'OLD TREND,' identifying another brand rather than Coach",
        "photo 3: the exterior has an Old Trend-branded leather tab; no Coach wordmark, horse-and-carriage, or recognizable Coach identifier is visible",
        "photo 1: the bag has a fabric-lined interior, which is inconsistent with many classic unlined glove-tanned Coach styles",
        "photo 5: the wide strap has ornate embossed decoration, not a characteristic Coach classic strap detail",
        "photo 2: the hardware and frame construction do not clearly match a catalog Coach silhouette",
        "photo 3: exterior bottom stamped OLD TREND Modern Vintage - explicit non-Coach maker mark",
        "photo 4: close-up reads OLD TREND Modern Vintage, not COACH wordmark or horse-and-carriage",
        "photo 1: fabric-lined interior with slip pocket, not unlined suede-back glove-tanned classic Coach interior",
        "photo 2, photo 5, photo 6: doctor-bag \/ frame-bag silhouette with base cup and side dogleash strap attachments - no matching vintage Coach catalog silhouette",
        "photo 5: wide crossbody strap with all-over floral embossing - never a vintage Coach classic treatment"
    ],
    "missing_information": [
        "photo 3 shows branding but not a full care\/material label or country-of-origin label",
        "No close-up of all hardware markings or zipper pulls",
        "Seller-stated dimensions are not legible from the provided photos",
        "No further Coach identifiers needed - brand already identified; asking price and dimensions would help value only"
    ],
    "authenticity_concerns": [
        "photo 4: visible Old Trend branding conflicts with identification as a Coach bag",
        "The bag appears to be a non-Coach leather doctor\/frame bag; no Coach identifier is present"
    ],
    "possible_model_reasoning": [
        "photo 3 and photo 4: Old Trend branding makes a Coach model match unlikely; no Coach model is proposed",
        "The structured frame\/doctor-bag silhouette and interior divider are generic and are not sufficient for a Coach attribution",
        "Condition: Very Good based on generally intact leather and hardware, with a small visible mark\/scuff near the lower exterior in photo 3; interior and strap appear intact in the provided views",
        "Brand is positively identified as Old Trend Modern Vintage from legible stamp in photo 4, ruling out Coach manufacture",
        "Silhouette is doctor-bag \/ frame-bag with bottom cup, not Willis, Court, Station, Dinky or other turnlock classic",
        "Construction - fabric lining, embossed strap, modern finished leather - inconsistent with 1970s-1990s unlined glove-tanned Coach classics",
        "Condition: Excellent per seller and photos; no corner wear visible in photo 6, leather clean, hardware bright"
    ],
    "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 and photo 2: brass-tone rings, snaps, swivel clips, and strap hardware; no legible Coach engraving visible",
        "leather_description": "photo 2 and photo 3: smooth burgundy-to-brown leather with a polished sheen; embossed decorative leather strap visible in photo 5",
        "lining_description": "photo 1: brown fabric lining with interior divider and pockets",
        "strap_construction": "photo 2 and photo 5: adjustable leather crossbody strap with brass-tone swivel clips and ornate embossed surface",
        "stitching_description": "photo 1 and photo 6: generally even contrasting stitching along the leather edges; no distinctive Coach construction identifier visible"
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0012,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.12,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.91,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 3: the bag is constructed from leather with brass-tone hardware and a crossbody strap, features that can occur on vintage Coach bags"
                ],
                "negative_evidence": [
                    "photo 4: the interior leather is clearly embossed 'OLD TREND,' identifying another brand rather than Coach",
                    "photo 3: the exterior has an Old Trend-branded leather tab; no Coach wordmark, horse-and-carriage, or recognizable Coach identifier is visible",
                    "photo 1: the bag has a fabric-lined interior, which is inconsistent with many classic unlined glove-tanned Coach styles",
                    "photo 5: the wide strap has ornate embossed decoration, not a characteristic Coach classic strap detail",
                    "photo 2: the hardware and frame construction do not clearly match a catalog Coach silhouette"
                ],
                "missing_information": [
                    "photo 3 shows branding but not a full care\/material label or country-of-origin label",
                    "No close-up of all hardware markings or zipper pulls",
                    "Seller-stated dimensions are not legible from the provided photos"
                ],
                "authenticity_concerns": [
                    "photo 4: visible Old Trend branding conflicts with identification as a Coach bag",
                    "The bag appears to be a non-Coach leather doctor\/frame bag; no Coach identifier is present"
                ],
                "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 and photo 2: brass-tone rings, snaps, swivel clips, and strap hardware; no legible Coach engraving visible",
                    "leather_description": "photo 2 and photo 3: smooth burgundy-to-brown leather with a polished sheen; embossed decorative leather strap visible in photo 5",
                    "lining_description": "photo 1: brown fabric lining with interior divider and pockets",
                    "strap_construction": "photo 2 and photo 5: adjustable leather crossbody strap with brass-tone swivel clips and ornate embossed surface",
                    "stitching_description": "photo 1 and photo 6: generally even contrasting stitching along the leather edges; no distinctive Coach construction identifier visible"
                },
                "possible_model_reasoning": [
                    "photo 3 and photo 4: Old Trend branding makes a Coach model match unlikely; no Coach model is proposed",
                    "The structured frame\/doctor-bag silhouette and interior divider are generic and are not sufficient for a Coach attribution",
                    "Condition: Very Good based on generally intact leather and hardware, with a small visible mark\/scuff near the lower exterior in photo 3; interior and strap appear intact in the provided views"
                ],
                "confidence": 0.91,
                "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": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.9,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 55,
                "estimated_resale_low": 20,
                "image_quality_score": 0.75,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "No further Coach identifiers needed - brand already identified; asking price and dimensions would help value only"
                ],
                "negative_evidence": [
                    "photo 3: exterior bottom stamped OLD TREND Modern Vintage - explicit non-Coach maker mark",
                    "photo 4: close-up reads OLD TREND Modern Vintage, not COACH wordmark or horse-and-carriage",
                    "photo 1: fabric-lined interior with slip pocket, not unlined suede-back glove-tanned classic Coach interior",
                    "photo 2, photo 5, photo 6: doctor-bag \/ frame-bag silhouette with base cup and side dogleash strap attachments - no matching vintage Coach catalog silhouette",
                    "photo 5: wide crossbody strap with all-over floral embossing - never a vintage Coach classic treatment"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone frame, rivets, D-rings and dogleash\/lobster clips; no turnlock; no COACH engraving visible",
                    "leather_description": "smooth burgundy \/ oxblood leather with sheen, looks like modern finished leather, not matte glove-tanned cowhide",
                    "lining_description": "brown \/ rust fabric lining with leather-trim slip pocket visible in photo 1",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-on-tone straight stitching visible on bottom and trim; no irregularity noted",
                    "strap_construction": "short top handle plus detachable adjustable crossbody strap on brass dogleash clips with riveted ends; crossbody has embossed floral pattern",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 2: solid brass-tone hardware and leather bag - generic population where Coach hides, but no Coach-specific detail"
                ],
                "possible_model_reasoning": [
                    "Brand is positively identified as Old Trend Modern Vintage from legible stamp in photo 4, ruling out Coach manufacture",
                    "Silhouette is doctor-bag \/ frame-bag with bottom cup, not Willis, Court, Station, Dinky or other turnlock classic",
                    "Construction - fabric lining, embossed strap, modern finished leather - inconsistent with 1970s-1990s unlined glove-tanned Coach classics",
                    "Condition: Excellent per seller and photos; no corner wear visible in photo 6, leather clean, hardware bright"
                ],
                "possible_models": [],
                "recommended_max_bid": 25,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.05
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 18116,
            "output_tokens": 765,
            "total_tokens": 18881,
            "estimated_cost_usd": 0.009082
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18668,
            "output_tokens": 1249,
            "total_tokens": 19917,
            "estimated_cost_usd": 0.004733
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}