Vintage Coach Hunter

{
    "is_handbag_probability": 0.975,
    "coach_probability": 0.08,
    "vintage_probability": 0.27,
    "authenticity_confidence": 0.075,
    "image_quality_score": 0.685,
    "seller_misidentification_probability": 0.085,
    "confidence": 0.715,
    "recommended_max_bid": 13.5,
    "estimated_resale_low": 17.5,
    "estimated_resale_high": 42.5,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: leather crossbody\/shoulder handbag with brass-tone clip hardware and a long adjustable strap.",
        "photo 1: dark brown leather and generally neat, even exterior stitching are compatible with many vintage leather bags, including some Coach construction.",
        "photo 1, photo 2: leather handbag with brass-tone hardware - population where misidentified Coach could hide",
        "photo 1: tan raw interior edge suggests unlined leather construction"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, hangtag, turnlock, or other Coach identifier.",
        "photo 2: plain rear panel has no visible brand stamp or logo.",
        "photo 1: the silhouette and clip-strap construction are generic and do not clearly match a specific Coach catalog style.",
        "photo 1: hardware appears plated or light-toned rather than clearly the substantial solid-brass hardware typical of many classic vintage Coach bags.",
        "photo 1, photo 2: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
        "photo 1, photo 2: no turnlock - open-top bucket with no flap or closure, unlike classic Coach turnlock flap styles",
        "photo 1, photo 2: silhouette does not match catalog classics - simple seamed open bucket\/tote with side panels, no flap, no exterior slip pocket, no dowel handle",
        "photo 2: modern thin adjustable strap with brass-tone lobster-claw clips, not vintage Coach dogleash clips or buckle-adjust construction",
        "photo 1, photo 2: smooth dark brown leather with raw-cut edges, no glove-tanned patina \/ scars \/ suede-back cues visible"
    ],
    "missing_information": [
        "photo 1-2: interior is not shown; request a clear photo of the entire interior, including any leather creed patch or fabric tag.",
        "photo 1-2: no close-up of hardware, zipper pulls, strap attachment points, or any maker stamps.",
        "photo 1-2: bottom, side, and interior construction views are missing.",
        "photo 1-2: seller-stated dimensions, country of manufacture, and material details are unavailable.",
        "interior views including back wall \/ slip pocket where creed would sit not shown",
        "creed close-up in raking light not shown",
        "hardware close-ups \/ engravings \/ zipper brand not shown",
        "hangtag both faces not shown - none visible",
        "bottom \/ corners \/ strap fold-point detail not shown",
        "seller-stated dimensions and scale cue not provided"
    ],
    "authenticity_concerns": [
        "photo 1-2: no Coach identifier is visible, so Coach manufacture cannot be supported and a generic lookalike is more likely.",
        "photo 1-2: the plain design and generic hardware provide insufficient evidence for a Coach attribution."
    ],
    "possible_model_reasoning": [
        "photo 1-2: no Coach style can be reliably matched from the generic rectangular crossbody silhouette; condition appears Very Good based on intact leather and stitching, with visible creasing and light surface wear. Interior and bottom are not shown.",
        "photo 1-2: no visible creed or serial means the era cannot be established; the smooth construction and hardware suggest a later or generic leather handbag rather than a documented classic Coach model.",
        "No Coach model fits: open-top seamed bucket with no flap, no turnlock, no zip, and lobster-clip detachable strap matches modern minimalist \/ handmade bucket totes, not City Bag (9790), Willis (9927), Court (9870), Station (5130), Duffle Sac (9085), or other catalog styles",
        "No creed, serial, wordmark, or hangtag visible to decode era; construction cues point to modern non-Coach",
        "Condition: Good to Very Good from exterior only - leather uniform with light wear, corners intact in photo 1 and photo 2, but interior, bottom, and strap fold not shown so 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\/light-gold strap clips, rings, and buckle-like fittings are visible; no stamps are legible.",
        "leather_description": "photo 1-2: smooth dark brown leather with a mild sheen and visible creasing\/handling marks; exact leather type is not determinable.",
        "lining_description": "not_visible - tan interior edge visible at top opening in photo 1 and photo 2 but lining material and pockets not shown",
        "strap_construction": "photo 1-2: long adjustable leather crossbody strap with stitched edges, buckle adjustment, and clip attachments.",
        "stitching_description": "photo 1-2: mostly straight, evenly spaced dark stitching is visible along the body and strap."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0044,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.12,
                "vintage_probability": 0.34,
                "authenticity_confidence": 0.1,
                "image_quality_score": 0.82,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather crossbody\/shoulder handbag with brass-tone clip hardware and a long adjustable strap.",
                    "photo 1: dark brown leather and generally neat, even exterior stitching are compatible with many vintage leather bags, including some Coach construction."
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, creed patch, hangtag, turnlock, or other Coach identifier.",
                    "photo 2: plain rear panel has no visible brand stamp or logo.",
                    "photo 1: the silhouette and clip-strap construction are generic and do not clearly match a specific Coach catalog style.",
                    "photo 1: hardware appears plated or light-toned rather than clearly the substantial solid-brass hardware typical of many classic vintage Coach bags."
                ],
                "missing_information": [
                    "photo 1-2: interior is not shown; request a clear photo of the entire interior, including any leather creed patch or fabric tag.",
                    "photo 1-2: no close-up of hardware, zipper pulls, strap attachment points, or any maker stamps.",
                    "photo 1-2: bottom, side, and interior construction views are missing.",
                    "photo 1-2: seller-stated dimensions, country of manufacture, and material details are unavailable."
                ],
                "authenticity_concerns": [
                    "photo 1-2: no Coach identifier is visible, so Coach manufacture cannot be supported and a generic lookalike is more likely.",
                    "photo 1-2: the plain design and generic hardware provide insufficient evidence for a Coach attribution."
                ],
                "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\/light-gold strap clips, rings, and buckle-like fittings are visible; no stamps are legible.",
                    "leather_description": "photo 1-2: smooth dark brown leather with a mild sheen and visible creasing\/handling marks; exact leather type is not determinable.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1-2: long adjustable leather crossbody strap with stitched edges, buckle adjustment, and clip attachments.",
                    "stitching_description": "photo 1-2: mostly straight, evenly spaced dark stitching is visible along the body and strap."
                },
                "possible_model_reasoning": [
                    "photo 1-2: no Coach style can be reliably matched from the generic rectangular crossbody silhouette; condition appears Very Good based on intact leather and stitching, with visible creasing and light surface wear. Interior and bottom are not shown.",
                    "photo 1-2: no visible creed or serial means the era cannot be established; the smooth construction and hardware suggest a later or generic leather handbag rather than a documented classic Coach model."
                ],
                "confidence": 0.78,
                "recommended_max_bid": 12,
                "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": 0.65,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 40,
                "estimated_resale_low": 20,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.97,
                "missing_information": [
                    "interior views including back wall \/ slip pocket where creed would sit not shown",
                    "creed close-up in raking light not shown",
                    "hardware close-ups \/ engravings \/ zipper brand not shown",
                    "hangtag both faces not shown - none visible",
                    "bottom \/ corners \/ strap fold-point detail not shown",
                    "seller-stated dimensions and scale cue not provided"
                ],
                "negative_evidence": [
                    "photo 1, photo 2: no creed patch, COACH wordmark, horse-and-carriage, or hangtag visible",
                    "photo 1, photo 2: no turnlock - open-top bucket with no flap or closure, unlike classic Coach turnlock flap styles",
                    "photo 1, photo 2: silhouette does not match catalog classics - simple seamed open bucket\/tote with side panels, no flap, no exterior slip pocket, no dowel handle",
                    "photo 2: modern thin adjustable strap with brass-tone lobster-claw clips, not vintage Coach dogleash clips or buckle-adjust construction",
                    "photo 1, photo 2: smooth dark brown leather with raw-cut edges, no glove-tanned patina \/ scars \/ suede-back cues visible"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "brass-tone lobster-claw strap clips and small rings at side anchors, plus small buckle on strap; tone consistent but modern lightweight form, not solid vintage brass turnlock \/ dogleash hardware",
                    "leather_description": "dark brown smooth leather with slight sheen, raw tan edges visible at top; no clear glove-tanned grain or patina visible in these photos",
                    "lining_description": "not_visible - tan interior edge visible at top opening in photo 1 and photo 2 but lining material and pockets not shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "straight tone-matched stitching along side panel seams visible in photo 1 and photo 2; no close-up to assess tightness or stress points",
                    "strap_construction": "thin flat detachable crossbody strap attached with lobster-claw clips to small side loops, with buckle-adjustable loop in photo 1 and photo 2",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1, photo 2: leather handbag with brass-tone hardware - population where misidentified Coach could hide",
                    "photo 1: tan raw interior edge suggests unlined leather construction"
                ],
                "possible_model_reasoning": [
                    "No Coach model fits: open-top seamed bucket with no flap, no turnlock, no zip, and lobster-clip detachable strap matches modern minimalist \/ handmade bucket totes, not City Bag (9790), Willis (9927), Court (9870), Station (5130), Duffle Sac (9085), or other catalog styles",
                    "No creed, serial, wordmark, or hangtag visible to decode era; construction cues point to modern non-Coach",
                    "Condition: Good to Very Good from exterior only - leather uniform with light wear, corners intact in photo 1 and photo 2, but interior, bottom, and strap fold not shown so grade capped"
                ],
                "possible_models": [],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.05,
                "vintage_probability": 0.2
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 19400,
            "output_tokens": 809,
            "total_tokens": 20209,
            "estimated_cost_usd": 0.009702
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 19997,
            "output_tokens": 1276,
            "total_tokens": 21273,
            "estimated_cost_usd": 0.00502
        }
    ]
}