Vintage Coach Hunter

{
    "is_handbag_probability": 0.99,
    "coach_probability": 0.025,
    "vintage_probability": 0.04,
    "authenticity_confidence": 0.025,
    "image_quality_score": 0.5,
    "seller_misidentification_probability": 0.03,
    "confidence": 0.645,
    "recommended_max_bid": 12,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 37.5,
    "possible_models": [],
    "positive_evidence": [],
    "negative_evidence": [
        "photo 1: The lot appears to contain four handbags, but none shows a legible Coach wordmark, horse-and-carriage, creed patch, or hangtag.",
        "photo 1: The black bag appears fabric or synthetic with silver-tone hardware, not the solid-brass, glove-tanned leather typical of vintage Coach classics.",
        "photo 1: The blue-and-white striped bag is fabric with contrasting trim and does not resemble a documented vintage Coach construction.",
        "photo 4: The black bag has modern-looking silver-tone U-shaped hardware and a synthetic\/fabric body; this is inconsistent with most 1970s\u2013early-1990s Coach classics.",
        "photo 6: The white bag shows heavily worn, wrinkled material and modern zipper construction, with no visible Coach identifier.",
        "photo 1: The red bag appears smooth synthetic or coated material with generic zipper and snap hardware, without a visible Coach identifier.",
        "photo 1,2,4: black zip-top shoulder bag with silver-tone U-shaped strap brackets - not Coach turnlock geometry and not a Coach catalog silhouette",
        "photo 1,2,4,5: red zip-top crossbody with snap-tab trim and shiny smooth finish suggests synthetic\/faux leather, not vintage glove-tanned cowhide",
        "photo 1,2,4,6: striped fabric crossbody with tan faux-leather trim - nylon\/canvas and faux materials with coach_probability <=0.05 unless identifier visible",
        "photo 1,2,6: off-white soft zip-top bag with thin straps and no turnlock, no creed, no hangtag, no brass hardware visible",
        "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible on any bag"
    ],
    "missing_information": [
        "Individual front, back, bottom, side, and interior photos of each bag.",
        "Straight-on close-ups of every interior label, leather patch, fabric tag, and pocket seam.",
        "Close-ups of all hardware, zipper pulls, and any hangtags.",
        "Seller-stated material, dimensions, and country-of-origin information for each bag.",
        "photo 1-6: no creed patch shown for any of the 4 bags - need straight-on interior back-wall\/pocket shots",
        "photo 1-6: no legible brand marks, hangtags, or hardware engravings visible",
        "photo 1-6: interiors, bottoms, and strap details not shown for any bag",
        "photo 3,5: motion blur limits hardware and leather assessment"
    ],
    "authenticity_concerns": [
        "photo 1: The visible materials and hardware are more consistent with generic modern handbags than Coach-made vintage leather goods.",
        "photo 4: The black bag's silver-tone hardware and fabric\/synthetic construction are inconsistent with a classic vintage Coach attribution, though no definitive replica identifier is visible."
    ],
    "possible_model_reasoning": [
        "No Coach model is proposed because no bag shows a visible Coach identifier and the materials, hardware, and silhouettes are generic.",
        "Condition: The white bag shows substantial visible wear and wrinkling in photo 6; condition of the other bags is approximately Good to Very Good from the limited exterior views, while interiors, odors, and functional hardware are unknown.",
        "Lot of 4 assessed together: none shows creed, wordmark, turnlock, hangtag, solid brass, or unlined glove-tanned construction to support a Coach model match",
        "Black, red, striped-fabric, and white zip-top shapes do not match City Bag (9790), Willis (9927), Court (9870), Station (5130), or other classic catalog styles",
        "Condition: Good to Very Good as generic used bags based on exterior only; interiors, bottoms, corners not shown so grade capped and lining unknown"
    ],
    "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: Silver-tone and gold-tone generic-looking zipper, snap, ring, and U-shaped hardware are visible; no Coach engraving is legible.",
        "leather_description": "photo 1: The black and red bags appear smooth synthetic or coated material rather than clearly identifiable glove-tanned leather. The blue-striped bag is fabric; the white bag appears worn synthetic or thin leather-like material.",
        "lining_description": "not_visible - interiors not emptied\/shown",
        "strap_construction": "photo 1: The lot includes shoulder straps and short handles; construction appears generic, with no visible Coach-specific dogleash clips or classic adjustable strap details.",
        "stitching_description": "photo 1: Machine stitching is visible and generally even on the bags, but the images do not provide sufficient detail for a Coach-specific construction comparison."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0007,
    "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": 0.55,
                "seller_misidentification_probability": 0.03,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [],
                "negative_evidence": [
                    "photo 1: The lot appears to contain four handbags, but none shows a legible Coach wordmark, horse-and-carriage, creed patch, or hangtag.",
                    "photo 1: The black bag appears fabric or synthetic with silver-tone hardware, not the solid-brass, glove-tanned leather typical of vintage Coach classics.",
                    "photo 1: The blue-and-white striped bag is fabric with contrasting trim and does not resemble a documented vintage Coach construction.",
                    "photo 4: The black bag has modern-looking silver-tone U-shaped hardware and a synthetic\/fabric body; this is inconsistent with most 1970s\u2013early-1990s Coach classics.",
                    "photo 6: The white bag shows heavily worn, wrinkled material and modern zipper construction, with no visible Coach identifier.",
                    "photo 1: The red bag appears smooth synthetic or coated material with generic zipper and snap hardware, without a visible Coach identifier."
                ],
                "missing_information": [
                    "Individual front, back, bottom, side, and interior photos of each bag.",
                    "Straight-on close-ups of every interior label, leather patch, fabric tag, and pocket seam.",
                    "Close-ups of all hardware, zipper pulls, and any hangtags.",
                    "Seller-stated material, dimensions, and country-of-origin information for each bag."
                ],
                "authenticity_concerns": [
                    "photo 1: The visible materials and hardware are more consistent with generic modern handbags than Coach-made vintage leather goods.",
                    "photo 4: The black bag's silver-tone hardware and fabric\/synthetic construction are inconsistent with a classic vintage Coach attribution, though no definitive replica identifier is visible."
                ],
                "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: Silver-tone and gold-tone generic-looking zipper, snap, ring, and U-shaped hardware are visible; no Coach engraving is legible.",
                    "leather_description": "photo 1: The black and red bags appear smooth synthetic or coated material rather than clearly identifiable glove-tanned leather. The blue-striped bag is fabric; the white bag appears worn synthetic or thin leather-like material.",
                    "lining_description": "not_visible",
                    "strap_construction": "photo 1: The lot includes shoulder straps and short handles; construction appears generic, with no visible Coach-specific dogleash clips or classic adjustable strap details.",
                    "stitching_description": "photo 1: Machine stitching is visible and generally even on the bags, but the images do not provide sufficient detail for a Coach-specific construction comparison."
                },
                "possible_model_reasoning": [
                    "No Coach model is proposed because no bag shows a visible Coach identifier and the materials, hardware, and silhouettes are generic.",
                    "Condition: The white bag shows substantial visible wear and wrinkling in photo 6; condition of the other bags is approximately Good to Very Good from the limited exterior views, while interiors, odors, and functional hardware are unknown."
                ],
                "confidence": 0.69,
                "recommended_max_bid": null,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.03,
                "coach_probability": 0.03,
                "confidence": 0.6,
                "estimated_era": "modern (2000s+), non-Coach",
                "estimated_resale_high": 40,
                "estimated_resale_low": 15,
                "image_quality_score": 0.45,
                "is_handbag_probability": 0.99,
                "missing_information": [
                    "photo 1-6: no creed patch shown for any of the 4 bags - need straight-on interior back-wall\/pocket shots",
                    "photo 1-6: no legible brand marks, hangtags, or hardware engravings visible",
                    "photo 1-6: interiors, bottoms, and strap details not shown for any bag",
                    "photo 3,5: motion blur limits hardware and leather assessment"
                ],
                "negative_evidence": [
                    "photo 1,2,4: black zip-top shoulder bag with silver-tone U-shaped strap brackets - not Coach turnlock geometry and not a Coach catalog silhouette",
                    "photo 1,2,4,5: red zip-top crossbody with snap-tab trim and shiny smooth finish suggests synthetic\/faux leather, not vintage glove-tanned cowhide",
                    "photo 1,2,4,6: striped fabric crossbody with tan faux-leather trim - nylon\/canvas and faux materials with coach_probability <=0.05 unless identifier visible",
                    "photo 1,2,6: off-white soft zip-top bag with thin straps and no turnlock, no creed, no hangtag, no brass hardware visible",
                    "photo 1-6: no COACH wordmark, horse-and-carriage, creed patch, or leather hangtag visible on any bag"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone U-brackets on black bag (photo 4), gold-tone small zipper pulls and snap studs on red bag (photo 4); no solid brass turnlock, no dogleash clips, no COACH stamping visible",
                    "leather_description": "no glove-tanned cowhide visible; black and red bags appear smooth synthetic\/faux leather with sheen; white bag appears soft thin leather or faux; striped bag is woven fabric with tan trim",
                    "lining_description": "not_visible - interiors not emptied\/shown",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "not_visible in detail; general topstitching visible on straps but no tight even Coach-type stitching assessable due to distance and blur",
                    "strap_construction": "black bag: two short fixed shoulder handles (photo 4); red bag: thin crossbody strap (photo 1); striped bag: thin tan strap; white bag: thin double straps; no buckle-adjustable brass, dowel, or dogleash construction visible",
                    "turnlock_present": false
                },
                "positive_evidence": [],
                "possible_model_reasoning": [
                    "Lot of 4 assessed together: none shows creed, wordmark, turnlock, hangtag, solid brass, or unlined glove-tanned construction to support a Coach model match",
                    "Black, red, striped-fabric, and white zip-top shapes do not match City Bag (9790), Willis (9927), Court (9870), Station (5130), or other classic catalog styles",
                    "Condition: Good to Very Good as generic used bags based on exterior only; interiors, bottoms, corners not shown so grade capped and lining unknown"
                ],
                "possible_models": [],
                "recommended_max_bid": 12,
                "seller_misidentification_probability": 0.03,
                "vintage_probability": 0.05
            }
        }
    ],
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            "input_tokens": 28769,
            "output_tokens": 857,
            "total_tokens": 29626,
            "estimated_cost_usd": 0.013564
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 30081,
            "output_tokens": 1240,
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}