Vintage Coach Hunter

{
    "is_handbag_probability": 0.98,
    "coach_probability": 0.17,
    "vintage_probability": 0.415,
    "authenticity_confidence": 0.13,
    "image_quality_score": 0.665,
    "seller_misidentification_probability": 0.17,
    "confidence": 0.66,
    "recommended_max_bid": 15,
    "estimated_resale_low": 12.5,
    "estimated_resale_high": 35,
    "possible_models": [
        "Patricia's Legacy (9951)"
    ],
    "positive_evidence": [
        "photo 1: leather flap shoulder-bag silhouette and tan leather are compatible with the broad category of vintage leather handbags.",
        "photo 2: the bag appears constructed from leather with stitched edges and an adjustable shoulder strap.",
        "photo 1, photo 5: tan leather flap shoulder bag silhouette and proportions 11x9 in seller-stated broadly consistent with vintage flap styles",
        "photo 2: unlined-appearing suede-back interior edge at flap side consistent with unlined construction",
        "photo 1-5: simple tone-on-tone leather with no logo print, the population where misidentified vintage hides"
    ],
    "negative_evidence": [
        "photo 1: no visible COACH wordmark, horse-and-carriage, or leather hangtag.",
        "photo 1: the flap has no visible Coach-style turnlock or other recognizable Coach closure.",
        "photos 1-5: pebble-grain leather, rounded soft construction, and buckle-adjustable strap are generic and do not establish a Coach model.",
        "photo 5: exterior back is unbranded; no Coach identifier is visible.",
        "photo 2: visible metal hardware appears silver-tone, which is less consistent with a typical 1970s-early-1990s Coach classic than solid brass.",
        "photo 5: no turnlock visible on front flap, unlike most 1970s-1980s Coach flap classics",
        "photo 3,5: silver\/nickel-tone buckle hardware, vintage Coach classics 1970s-early 1990s expected solid brass",
        "photo 1-5: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
        "photo 1-5: pebbled grain leather appearance, less like smooth glove-tanned cowhide signature of vintage Coach"
    ],
    "missing_information": [
        "photo 2: interior is only partially visible; request a clear, fully opened interior photograph.",
        "request a straight-on close-up of every interior wall and pocket for a creed patch or fabric label.",
        "request close-ups of the strap hardware, zipper pull, and any interior or exterior stamps.",
        "photo 4: bottom is visible, but the corners and construction details are not shown closely enough to assess wear and maker-specific finishing.",
        "photo 1-5: interior not shown, creed patch not shown",
        "photo 1-5: no creed close-up to read wording or serial number",
        "photo 5: front flap closure detail not shown - no turnlock or fastener visible",
        "photo 2-3: hardware close-up and zipper brand stamp not shown",
        "photo 1-5: hangtag front\/back not shown",
        "photo 4: bottom only, no front\/back\/side corner wear detail in close-up",
        "seller-stated dimensions only, no scale object or interior pocket layout"
    ],
    "authenticity_concerns": [
        "No Coach identifier is visible, and the silhouette and construction are consistent with a generic leather shoulder bag or another maker rather than a recognizable Coach classic.",
        "The seller's 1970s-1980s dating is unverified by visible identifiers; the pebbled leather and silver-tone hardware do not strongly support that era for Coach.",
        "If a creed or label exists inside, it should be inspected before treating the bag as Coach; none can be confirmed from the supplied views."
    ],
    "possible_model_reasoning": [
        "The dimensions and flap shoulder-bag shape do not sufficiently match a specific Coach catalog model, and no Coach identifier is visible.",
        "The listing's 1970s-1980s claim is seller-stated only; photos do not show a creed, serial, country line, Coach tag, or era-specific brass hardware.",
        "Condition: Very Good provisionally; photos show light use\/creasing and shape dents, with no obvious major tears or broken hardware, but the interior, odor, and strap condition are not fully documented.",
        "Patricia's Legacy (9951) considered because photo 5 shows flap with no visible fastener and seller size 11x9x4 matches 11-12x8-9x3.5-4 catalog size, but no interior, no creed, silver hardware inconsistent with expected solid brass, and leather grain atypical, so fit is weak",
        "No turnlock models like City Bag (9790), Court (9870), Dinky (9375) ruled out by absence of turnlock in photo 5",
        "Condition: Very Good to Excellent based on even color, no obvious corner wear in photo 4, light use; capped at Very Good because interior, bottom corners close-up, and strap fold not shown"
    ],
    "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 2 and photo 3: silver-tone buckle\/strap hardware is visible; no Coach engraving is legible. Other closure hardware is not visible.",
        "leather_description": "photos 1-5: tan\/brown pebbled leather with a soft, somewhat slouchy body and visible creasing\/dents.",
        "lining_description": "photo 2: a dark interior and what appears to be an interior zipper are partially visible, but the lining material and full layout cannot be determined.",
        "strap_construction": "photos 2-5: adjustable stitched leather shoulder strap with buckle hardware; strap appears attached at the sides.",
        "stitching_description": "photos 1-5: generally visible, mostly even perimeter stitching; close-up quality is insufficient to assess stitch consistency at all stress points."
    },
    "ensemble_agreement": "HIGH",
    "ensemble_variance": 0.0049,
    "ensemble_members": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "result": {
                "is_handbag_probability": 0.98,
                "coach_probability": 0.12,
                "vintage_probability": 0.38,
                "authenticity_confidence": 0.08,
                "image_quality_score": 0.78,
                "seller_misidentification_probability": 0.12,
                "estimated_era": "modern (2000s+), non-Coach",
                "possible_models": [],
                "positive_evidence": [
                    "photo 1: leather flap shoulder-bag silhouette and tan leather are compatible with the broad category of vintage leather handbags.",
                    "photo 2: the bag appears constructed from leather with stitched edges and an adjustable shoulder strap."
                ],
                "negative_evidence": [
                    "photo 1: no visible COACH wordmark, horse-and-carriage, or leather hangtag.",
                    "photo 1: the flap has no visible Coach-style turnlock or other recognizable Coach closure.",
                    "photos 1-5: pebble-grain leather, rounded soft construction, and buckle-adjustable strap are generic and do not establish a Coach model.",
                    "photo 5: exterior back is unbranded; no Coach identifier is visible.",
                    "photo 2: visible metal hardware appears silver-tone, which is less consistent with a typical 1970s-early-1990s Coach classic than solid brass."
                ],
                "missing_information": [
                    "photo 2: interior is only partially visible; request a clear, fully opened interior photograph.",
                    "request a straight-on close-up of every interior wall and pocket for a creed patch or fabric label.",
                    "request close-ups of the strap hardware, zipper pull, and any interior or exterior stamps.",
                    "photo 4: bottom is visible, but the corners and construction details are not shown closely enough to assess wear and maker-specific finishing."
                ],
                "authenticity_concerns": [
                    "No Coach identifier is visible, and the silhouette and construction are consistent with a generic leather shoulder bag or another maker rather than a recognizable Coach classic.",
                    "The seller's 1970s-1980s dating is unverified by visible identifiers; the pebbled leather and silver-tone hardware do not strongly support that era for Coach.",
                    "If a creed or label exists inside, it should be inspected before treating the bag as Coach; none can be confirmed from the supplied views."
                ],
                "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 2 and photo 3: silver-tone buckle\/strap hardware is visible; no Coach engraving is legible. Other closure hardware is not visible.",
                    "leather_description": "photos 1-5: tan\/brown pebbled leather with a soft, somewhat slouchy body and visible creasing\/dents.",
                    "lining_description": "photo 2: a dark interior and what appears to be an interior zipper are partially visible, but the lining material and full layout cannot be determined.",
                    "strap_construction": "photos 2-5: adjustable stitched leather shoulder strap with buckle hardware; strap appears attached at the sides.",
                    "stitching_description": "photos 1-5: generally visible, mostly even perimeter stitching; close-up quality is insufficient to assess stitch consistency at all stress points."
                },
                "possible_model_reasoning": [
                    "The dimensions and flap shoulder-bag shape do not sufficiently match a specific Coach catalog model, and no Coach identifier is visible.",
                    "The listing's 1970s-1980s claim is seller-stated only; photos do not show a creed, serial, country line, Coach tag, or era-specific brass hardware.",
                    "Condition: Very Good provisionally; photos show light use\/creasing and shape dents, with no obvious major tears or broken hardware, but the interior, odor, and strap condition are not fully documented."
                ],
                "confidence": 0.77,
                "recommended_max_bid": 15,
                "estimated_resale_low": 10,
                "estimated_resale_high": 35
            }
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "result": {
                "authenticity_concerns": [],
                "authenticity_confidence": 0.18,
                "coach_probability": 0.22,
                "confidence": 0.55,
                "estimated_era": "unknown",
                "estimated_resale_high": 35,
                "estimated_resale_low": 15,
                "image_quality_score": 0.55,
                "is_handbag_probability": 0.98,
                "missing_information": [
                    "photo 1-5: interior not shown, creed patch not shown",
                    "photo 1-5: no creed close-up to read wording or serial number",
                    "photo 5: front flap closure detail not shown - no turnlock or fastener visible",
                    "photo 2-3: hardware close-up and zipper brand stamp not shown",
                    "photo 1-5: hangtag front\/back not shown",
                    "photo 4: bottom only, no front\/back\/side corner wear detail in close-up",
                    "seller-stated dimensions only, no scale object or interior pocket layout"
                ],
                "negative_evidence": [
                    "photo 5: no turnlock visible on front flap, unlike most 1970s-1980s Coach flap classics",
                    "photo 3,5: silver\/nickel-tone buckle hardware, vintage Coach classics 1970s-early 1990s expected solid brass",
                    "photo 1-5: no COACH wordmark, horse-and-carriage, creed patch or hangtag visible",
                    "photo 1-5: pebbled grain leather appearance, less like smooth glove-tanned cowhide signature of vintage Coach"
                ],
                "observed_features": {
                    "coach_wordmark_present": false,
                    "creed_present": false,
                    "creed_text": "not_visible",
                    "hangtag_present": false,
                    "hardware_description": "silver-tone buckle on adjustable strap visible in photo 3 and photo 5; no turnlock visible; no brass-tone hardware, no zipper pull stamp visible",
                    "leather_description": "tan\/camel medium-grain pebbled leather with soft slouch, visible grain in photo 1, photo 4; edges raw-cut appearance",
                    "lining_description": "not_visible",
                    "serial_or_style_number": "not_visible",
                    "serial_or_style_number_present": false,
                    "stitching_description": "tone-matched stitching visible on strap tabs and flap edge in photo 2, photo 3; appears even but no close-up to assess fully",
                    "strap_construction": "photo 2, photo 3, photo 5: flat leather shoulder\/crossbody strap with buckle adjustment, sewn fixed tabs with pointed ends at body sides",
                    "turnlock_present": false
                },
                "positive_evidence": [
                    "photo 1, photo 5: tan leather flap shoulder bag silhouette and proportions 11x9 in seller-stated broadly consistent with vintage flap styles",
                    "photo 2: unlined-appearing suede-back interior edge at flap side consistent with unlined construction",
                    "photo 1-5: simple tone-on-tone leather with no logo print, the population where misidentified vintage hides"
                ],
                "possible_model_reasoning": [
                    "Patricia's Legacy (9951) considered because photo 5 shows flap with no visible fastener and seller size 11x9x4 matches 11-12x8-9x3.5-4 catalog size, but no interior, no creed, silver hardware inconsistent with expected solid brass, and leather grain atypical, so fit is weak",
                    "No turnlock models like City Bag (9790), Court (9870), Dinky (9375) ruled out by absence of turnlock in photo 5",
                    "Condition: Very Good to Excellent based on even color, no obvious corner wear in photo 4, light use; capped at Very Good because interior, bottom corners close-up, and strap fold not shown"
                ],
                "possible_models": [
                    "Patricia's Legacy (9951)"
                ],
                "recommended_max_bid": 15,
                "seller_misidentification_probability": 0.22,
                "vintage_probability": 0.45
            }
        }
    ],
    "_usage": [
        {
            "model_name": "openai:gpt-5.6-luna",
            "input_tokens": 17309,
            "output_tokens": 863,
            "total_tokens": 18172,
            "estimated_cost_usd": 0.008995
        },
        {
            "model_name": "meta:muse-spark-1.3-contributor",
            "input_tokens": 17640,
            "output_tokens": 1462,
            "total_tokens": 19102,
            "estimated_cost_usd": 0.004698
        }
    ]
}