Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.02,
    "vintage_probability": 0.03,
    "authenticity_confidence": 0.02,
    "image_quality_score": 0.74,
    "seller_misidentification_probability": 0.485,
    "confidence": 0.91,
    "recommended_max_bid": 11,
    "estimated_resale_low": 10,
    "estimated_resale_high": 30,
    "possible_models": [],
    "positive_evidence": [
        "photo 1: Clearly a leather handbag with a flap, shoulder strap, top rings, and exterior zip pocket.",
        "photo 5: Interior leather label visibly reads a non-Coach brand name ending in '& fashion' and 'Genuine Leather'."
    ],
    "negative_evidence": [
        "photo 1: Front bears a prominent M M monogram rather than a Coach wordmark, carriage, or recognizable Coach turnlock.",
        "photo 2: Hardware and side construction use decorative rings and a large tassel, not characteristic vintage Coach classic construction.",
        "photo 3: Exterior hardware appears mixed silver-tone and gold-tone, inconsistent with typical vintage Coach hardware matching.",
        "photo 4: Interior appears fabric-lined, whereas many classic vintage Coach glove-tanned styles are unlined suede-backed leather.",
        "photo 5: Visible brand label is not Coach and explicitly identifies another maker.",
        "Listing text only describes the item as an unbranded genuine leather bag; it provides no Coach-specific evidence.",
        "photo 1: front flap bears gold-tone 'MM' logo, not COACH wordmark or horse-and-carriage",
        "photo 3: back exterior zip pocket and oval 'MM' tag, not Coach construction",
        "photo 5: interior leather label reads 'mercer & madison Genuine Leather' - positively identifies non-Coach maker",
        "photo 4 and photo 5: dark synthetic polyester fabric lining, not unlined glove-tanned suede of vintage Coach classics",
        "photo 1, photo 2, photo 3: modern gold-tone ring hardware and tassel charm, no solid brass turnlock with vintage Coach geometry",
        "photo 1: color-blocked smooth leather plus suede-like side panels with black edge paint, not classic Coach glove-tanned construction"
    ],
    "missing_information": [
        "Straight-on close-up of the full interior label for the exact brand name and any additional wording.",
        "Close-up of any interior or exterior marks, serial numbers, and zipper-pull stamps.",
        "Clear bottom and corner photos to assess wear and construction.",
        "Seller-stated material details beyond 'genuine leather' and any provenance.",
        "No Coach creed patch to inspect - brand already identified as Mercer & Madison so no further Coach verification needed",
        "No bottom view to assess corner wear, but not needed for Coach determination"
    ],
    "authenticity_concerns": [
        "photo 5: The visible non-Coach brand label is direct evidence that this is a different leather-goods brand, not an unlabeled Coach bag.",
        "photo 3: Mixed-tone decorative hardware is inconsistent with a typical vintage Coach classic."
    ],
    "possible_model_reasoning": [
        "The bag is not consistent with the listed vintage Coach catalog models: it has an M M logo, decorative tassel, fabric lining, and a visible non-Coach label.",
        "Condition: Good to Very Good; visible body creasing and minor handling wear, but no major tears or broken hardware are apparent. Interior condition is only partly assessable.",
        "No Coach identifiers visible in any photo: no creed, no COACH wordmark, no horse-and-carriage, no bead-chain hangtag",
        "Interior label positively identifies bag as 'mercer & madison' (photo 5), a separate mall \/ private-label brand, ruling out Coach catalog match",
        "Silhouette - flap top-handle satchel with MM logo, back zip pocket, fabric lining - matches no vintage Coach style (City Bag, Court, Station, Willis, Dinky)",
        "Condition: Very Good to Excellent; exterior clean with light creasing on flap (photo 1, photo 3), hardware bright, interior lining appears clean (photo 4, photo 5)"
    ],
    "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: Gold-tone top rings and an M M front emblem; photo 3: silver-tone zipper hardware and strap fittings; photo 2: decorative side ring and tassel. No Coach-stamped hardware visible.",
        "leather_description": "photo 1: Smooth, color-blocked light beige and dark brown leather exterior with visible creasing; seller states genuine leather.",
        "lining_description": "photo 4: Dark fabric lining and zippered interior compartments are visible, though the interior is partly shadowed.",
        "strap_construction": "photo 2: Adjustable-looking dark leather shoulder strap attached through metal rings; decorative leather tassel on the side.",
        "stitching_description": "photos 1 and 3: Visible machine stitching is generally even, with contrasting thread on portions of the brown exterior."
    },
    "ensemble_agreement": "MEDIUM",
    "ensemble_variance": 0.0309,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.99,
                "coach_probability": 0.02,
                "vintage_probability": 0.03,
                "authenticity_confidence": 0.02,
                "image_quality_score": 0.83,
                "seller_misidentification_probability": 0.94,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: Clearly a leather handbag with a flap, shoulder strap, top rings, and exterior zip pocket.",
                    "photo 5: Interior leather label visibly reads a non-Coach brand name ending in '& fashion' and 'Genuine Leather'."
                ],
                "negative_evidence": [
                    "photo 1: Front bears a prominent M M monogram rather than a Coach wordmark, carriage, or recognizable Coach turnlock.",
                    "photo 2: Hardware and side construction use decorative rings and a large tassel, not characteristic vintage Coach classic construction.",
                    "photo 3: Exterior hardware appears mixed silver-tone and gold-tone, inconsistent with typical vintage Coach hardware matching.",
                    "photo 4: Interior appears fabric-lined, whereas many classic vintage Coach glove-tanned styles are unlined suede-backed leather.",
                    "photo 5: Visible brand label is not Coach and explicitly identifies another maker.",
                    "Listing text only describes the item as an unbranded genuine leather bag; it provides no Coach-specific evidence."
                ],
                "missing_information": [
                    "Straight-on close-up of the full interior label for the exact brand name and any additional wording.",
                    "Close-up of any interior or exterior marks, serial numbers, and zipper-pull stamps.",
                    "Clear bottom and corner photos to assess wear and construction.",
                    "Seller-stated material details beyond 'genuine leather' and any provenance."
                ],
                "authenticity_concerns": [
                    "photo 5: The visible non-Coach brand label is direct evidence that this is a different leather-goods brand, not an unlabeled Coach bag.",
                    "photo 3: Mixed-tone decorative hardware is inconsistent with a typical vintage Coach classic."
                ],
                "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": true,
                    "hardware_description": "photo 1: Gold-tone top rings and an M M front emblem; photo 3: silver-tone zipper hardware and strap fittings; photo 2: decorative side ring and tassel. No Coach-stamped hardware visible.",
                    "leather_description": "photo 1: Smooth, color-blocked light beige and dark brown leather exterior with visible creasing; seller states genuine leather.",
                    "lining_description": "photo 4: Dark fabric lining and zippered interior compartments are visible, though the interior is partly shadowed.",
                    "strap_construction": "photo 2: Adjustable-looking dark leather shoulder strap attached through metal rings; decorative leather tassel on the side.",
                    "stitching_description": "photos 1 and 3: Visible machine stitching is generally even, with contrasting thread on portions of the brown exterior."
                },
                "possible_model_reasoning": [
                    "The bag is not consistent with the listed vintage Coach catalog models: it has an M M logo, decorative tassel, fabric lining, and a visible non-Coach label.",
                    "Condition: Good to Very Good; visible body creasing and minor handling wear, but no major tears or broken hardware are apparent. Interior condition is only partly assessable."
                ],
                "confidence": 0.94,
                "recommended_max_bid": 12,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.02,
                "coach_probability": 0.02,
                "confidence": 0.88,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 25,
                "estimated_resale_low": 10,
                "image_quality_score": 0.65,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "No Coach creed patch to inspect - brand already identified as Mercer & Madison so no further Coach verification needed",
                    "No bottom view to assess corner wear, but not needed for Coach determination"
                ],
                "negative_evidence": [
                    "photo 1: front flap bears gold-tone 'MM' logo, not COACH wordmark or horse-and-carriage",
                    "photo 3: back exterior zip pocket and oval 'MM' tag, not Coach construction",
                    "photo 5: interior leather label reads 'mercer & madison Genuine Leather' - positively identifies non-Coach maker",
                    "photo 4 and photo 5: dark synthetic polyester fabric lining, not unlined glove-tanned suede of vintage Coach classics",
                    "photo 1, photo 2, photo 3: modern gold-tone ring hardware and tassel charm, no solid brass turnlock with vintage Coach geometry",
                    "photo 1: color-blocked smooth leather plus suede-like side panels with black edge paint, not classic Coach glove-tanned construction"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "gold-tone metal rings, D-rings, back zipper pull; modern plated tone, not solid vintage brass; no turnlock",
                    "leather_description": "two-tone smooth leather flap in beige and burgundy with taupe suede-like side gussets, black edge trim",
                    "lining_description": "dark grey\/black polyester fabric lining with interior zip pocket, visible in photo 4 and photo 5",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "even machine stitching, contrast light thread on flap edge, center seam on back pocket",
                    "strap_construction": "short black top handle attached with gold-tone rings, plus side braided tassel charm; full shoulder strap not shown",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "No Coach identifiers visible in any photo: no creed, no COACH wordmark, no horse-and-carriage, no bead-chain hangtag",
                    "Interior label positively identifies bag as 'mercer & madison' (photo 5), a separate mall \/ private-label brand, ruling out Coach catalog match",
                    "Silhouette - flap top-handle satchel with MM logo, back zip pocket, fabric lining - matches no vintage Coach style (City Bag, Court, Station, Willis, Dinky)",
                    "Condition: Very Good to Excellent; exterior clean with light creasing on flap (photo 1, photo 3), hardware bright, interior lining appears clean (photo 4, photo 5)"
                ],
                "possible_models": [],
                "recommended_max_bid": 10,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.03
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17571,
            "output_tokens": 803,
            "total_tokens": 18374,
            "estimated_cost_usd": 0.008956
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 18078,
            "output_tokens": 1294,
            "total_tokens": 19372,
            "estimated_cost_usd": 0.004651
        }
    ]
}