Vintage Coach Hunter

{
    "is_handbag_probability": 0.985,
    "coach_probability": 0.03,
    "vintage_probability": 0.515,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.755,
    "seller_misidentification_probability": 0.055,
    "confidence": 0.82,
    "recommended_max_bid": 11,
    "estimated_resale_low": 15,
    "estimated_resale_high": 42.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather handbag with a structured frame, stitched panels, and metal hardware is visible.",
        "photo 4: exposed leather side construction and riveted strap attachments suggest an older-style handbag."
    ],
    "negative_evidence": [
        "photo 1: prominent decorative carriage-like clasp is unlike the restrained classic Coach turnlock geometry.",
        "photo 1: highly glossy multicolor patchwork leather and ornate clasp do not match the typical unlined glove-tanned Coach classic construction.",
        "photos 1-6: no legible Coach wordmark, creed patch, serial\/style number, or Coach hangtag is visible.",
        "photo 6: clasp hardware appears ornamental and bulky rather than a standard vintage Coach turnlock.",
        "listing title: seller identifies the bag as Burlington and unbranded, but seller text is weak evidence and cannot establish manufacture.",
        "photo 1,2,3,5: multicolor patchwork panel body in burgundy\/tan\/brown\/grey with contrast topstitching - no Coach catalog classic uses this patchwork",
        "photo 1,2,6: ornate filigree antiqued twist\/clasp closure with scroll detail - not Coach turnlock geometry (wide thin oval plate with slim rounded tab)",
        "photo 1,5: thin flat shoulder straps riveted to body with dome rivets - not Coach buckle-adjustable or dogleash-clip construction",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
        "photo 4: frame\/doctor-satchel rigid construction with edge binding - does not match any Coach classic silhouette"
    ],
    "missing_information": [
        "Interior photo showing the full lining, back wall, pockets, and any leather creed patch.",
        "Straight-on close-up of every interior label, stamp, or sewn-in tag.",
        "Close-ups of the clasp, zipper, rivets, and any hardware markings.",
        "Bottom, back, and full strap photos.",
        "Seller-stated dimensions and confirmation of whether the clasp functions as a lock.",
        "photo of interior emptied showing lining material and any brand\/creed\/fabric tags - no creed patch shown",
        "close-up of hardware stamps\/maker marks on clasp and rivets",
        "bottom view showing corners\/feet and construction",
        "seller-stated dimensions for scale"
    ],
    "authenticity_concerns": [
        "The visible decorative clasp and patchwork design are inconsistent with recognizable vintage Coach classic models.",
        "No Coach identifier is visible in the provided photos; this appears more likely to be a non-Coach vintage leather bag than a misidentified Coach bag."
    ],
    "possible_model_reasoning": [
        "No Coach catalog model is a close match: the frame satchel silhouette and ornate central clasp are not sufficient to identify a Coach style.",
        "The seller's claimed 1960s\u20131970s dating is not verifiable from the photos; construction may be vintage, but no period label or brand identifier is shown.",
        "Condition: Good; visible surface scuffs, edge wear, exposed\/frayed material at the lower right edge, and wear on the straps (photos 1-5). Interior and functionality are unassessed.",
        "No Coach model fits: patchwork frame doctor bag with ornate clasp and riveted straps has no counterpart in \u00a74 catalog (City 9790, Willis 9927, Court 9870, Station 5130, Duffle 9085 etc. are solid-color glove-tanned with Coach turnlock)",
        "No hard identifiers: no creed, no serial, no wordmark, no hangtag in 6 photos despite front\/back\/side\/interior views",
        "Construction inconsistent with Coach: patchwork + ornate plated hardware + contrast stitching vs unlined glove-tanned + solid brass + tone-matched stitching",
        "Condition: Good to Very Good; surface scuffing and edge wear visible (photo 2,4), straps appear intact without cracking at fold, interior and bottom not fully shown so capped"
    ],
    "estimated_era": "unknown",
    "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 6: ornate shiny metal frame clasp with a central rotating tab and decorative carriage-like form; multiple rounded rivets are visible. No Coach engraving is legible.",
        "leather_description": "photos 1-5: glossy, smooth-looking multicolor leather patchwork in burgundy, brown, mustard, gray, and tan; surface appears more finished and uniform than typical vintage glove-tanned Coach leather.",
        "lining_description": "not_visible - photo 4 shows brown interior in shadow but material, pockets and tags not legible",
        "strap_construction": "photos 1-5: two narrow fixed leather shoulder straps attached with rivets; one strap edge shows darkened or exposed layers.",
        "stitching_description": "photos 1-5: visible machine stitching around patchwork pieces and perimeter, generally even but with some loose\/frayed edge material near the lower right corner."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0011,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.04,
                "vintage_probability": 0.48,
                "authenticity_confidence": 0.03,
                "image_quality_score": 0.83,
                "seller_misidentification_probability": 0.08,
                "estimated_era": "unknown",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather handbag with a structured frame, stitched panels, and metal hardware is visible.",
                    "photo 4: exposed leather side construction and riveted strap attachments suggest an older-style handbag."
                ],
                "negative_evidence": [
                    "photo 1: prominent decorative carriage-like clasp is unlike the restrained classic Coach turnlock geometry.",
                    "photo 1: highly glossy multicolor patchwork leather and ornate clasp do not match the typical unlined glove-tanned Coach classic construction.",
                    "photos 1-6: no legible Coach wordmark, creed patch, serial\/style number, or Coach hangtag is visible.",
                    "photo 6: clasp hardware appears ornamental and bulky rather than a standard vintage Coach turnlock.",
                    "listing title: seller identifies the bag as Burlington and unbranded, but seller text is weak evidence and cannot establish manufacture."
                ],
                "missing_information": [
                    "Interior photo showing the full lining, back wall, pockets, and any leather creed patch.",
                    "Straight-on close-up of every interior label, stamp, or sewn-in tag.",
                    "Close-ups of the clasp, zipper, rivets, and any hardware markings.",
                    "Bottom, back, and full strap photos.",
                    "Seller-stated dimensions and confirmation of whether the clasp functions as a lock."
                ],
                "authenticity_concerns": [
                    "The visible decorative clasp and patchwork design are inconsistent with recognizable vintage Coach classic models.",
                    "No Coach identifier is visible in the provided photos; this appears more likely to be a non-Coach vintage leather bag than a misidentified Coach bag."
                ],
                "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: ornate shiny metal frame clasp with a central rotating tab and decorative carriage-like form; multiple rounded rivets are visible. No Coach engraving is legible.",
                    "leather_description": "photos 1-5: glossy, smooth-looking multicolor leather patchwork in burgundy, brown, mustard, gray, and tan; surface appears more finished and uniform than typical vintage glove-tanned Coach leather.",
                    "lining_description": "not_visible",
                    "strap_construction": "photos 1-5: two narrow fixed leather shoulder straps attached with rivets; one strap edge shows darkened or exposed layers.",
                    "stitching_description": "photos 1-5: visible machine stitching around patchwork pieces and perimeter, generally even but with some loose\/frayed edge material near the lower right corner."
                },
                "possible_model_reasoning": [
                    "No Coach catalog model is a close match: the frame satchel silhouette and ornate central clasp are not sufficient to identify a Coach style.",
                    "The seller's claimed 1960s\u20131970s dating is not verifiable from the photos; construction may be vintage, but no period label or brand identifier is shown.",
                    "Condition: Good; visible surface scuffs, edge wear, exposed\/frayed material at the lower right edge, and wear on the straps (photos 1-5). Interior and functionality are unassessed."
                ],
                "confidence": 0.82,
                "recommended_max_bid": 10,
                "estimated_resale_low": 15,
                "estimated_resale_high": 50
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.82,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.68,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo of interior emptied showing lining material and any brand\/creed\/fabric tags - no creed patch shown",
                    "close-up of hardware stamps\/maker marks on clasp and rivets",
                    "bottom view showing corners\/feet and construction",
                    "seller-stated dimensions for scale"
                ],
                "negative_evidence": [
                    "photo 1,2,3,5: multicolor patchwork panel body in burgundy\/tan\/brown\/grey with contrast topstitching - no Coach catalog classic uses this patchwork",
                    "photo 1,2,6: ornate filigree antiqued twist\/clasp closure with scroll detail - not Coach turnlock geometry (wide thin oval plate with slim rounded tab)",
                    "photo 1,5: thin flat shoulder straps riveted to body with dome rivets - not Coach buckle-adjustable or dogleash-clip construction",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible",
                    "photo 4: frame\/doctor-satchel rigid construction with edge binding - does not match any Coach classic silhouette"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "antiqued brass-tone ornate filigree twist clasp with circular medallion (photo 6), dome rivets attaching straps and back tab (photo 5); frame top edge with small ball studs; not solid-brass Coach turnlock geometry",
                    "leather_description": "smooth finished leather in patchwork squares\/rectangles in burgundy, mustard-tan, chocolate brown, taupe\/grey with burgundy trim; sheen suggests coated\/finished leather, not matte glove-tanned cowhide",
                    "lining_description": "not_visible - photo 4 shows brown interior in shadow but material, pockets and tags not legible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "visible contrast light-colored topstitching around each patchwork panel (photo 1,3); even but not tone-matched as on vintage Coach classics",
                    "strap_construction": "two narrow flat non-adjustable shoulder straps, riveted to front body with two rivets each (photo 1), suede-like flesh side visible (photo 2,5); no buckle, no dogleash clips",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach model fits: patchwork frame doctor bag with ornate clasp and riveted straps has no counterpart in \u00a74 catalog (City 9790, Willis 9927, Court 9870, Station 5130, Duffle 9085 etc. are solid-color glove-tanned with Coach turnlock)",
                    "No hard identifiers: no creed, no serial, no wordmark, no hangtag in 6 photos despite front\/back\/side\/interior views",
                    "Construction inconsistent with Coach: patchwork + ornate plated hardware + contrast stitching vs unlined glove-tanned + solid brass + tone-matched stitching",
                    "Condition: Good to Very Good; surface scuffing and edge wear visible (photo 2,4), straps appear intact without cracking at fold, interior and bottom not fully shown so capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.55
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 28783,
            "output_tokens": 915,
            "total_tokens": 29698,
            "estimated_cost_usd": 0.013709
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30095,
            "output_tokens": 1774,
            "total_tokens": 31869,
            "estimated_cost_usd": 0.007438
        }
    ]
}