{
  "schema": "windscreen-bow-evidence-v1",
  "review_date": "2026-10-27",
  "donor_source": "https://www.rwautoclassics.com/viewitem/?id=22163",
  "donor_scope": "Seller describes a1978MG Midget1500 donor and September1977Triplex marking;not identification of this car.",
  "original_images": [
    {
      "url": "https://www.rwautoclassics.com/img/1607/1607563560_254449753.jpg",
      "sha256": "fd63d671ead17f302122e3b54083818640ac3c7934138b75b4f78e8cfda5ce0f"
    },
    {
      "url": "https://www.rwautoclassics.com/img/1607/1607563560_784310260.jpg",
      "sha256": "71fc629ff80022fb295cf259d56a6c43fe3d498c730079118dfdfff75c2bfcf1"
    },
    {
      "url": "https://www.rwautoclassics.com/img/1607/1607563561_196998843.jpg",
      "sha256": "ea1a22e5ed3ea5af95ff09908d71aa6de0322c8fd00595412c60b82332c8ac28"
    },
    {
      "url": "https://www.rwautoclassics.com/img/1607/1607563561_463274279.jpg",
      "sha256": "877914d0a0ffd98b276854138972a48bac73815cf2cfc1595d92cf9a8420a6d2"
    },
    {
      "url": "https://www.rwautoclassics.com/img/1607/1607563562_407284713.jpg",
      "sha256": "d92e5b970855b058b283bfd5470d4b32be133c3b8dccbc5182436ec2b178ecf3"
    }
  ],
  "owner_images": [
    {
      "path": "/cars/assets/photos/img_6329.jpg",
      "sha256": "6423b505d1c2864d153fca78ec75da66df19edef5dfefb6a93691611038688a5"
    },
    {
      "path": "/cars/assets/photos/img_6341.jpg",
      "sha256": "b148d37ad558d6dbfe631924e582413e790a5ae5a55939a3d37ad6dc2eec68f3"
    }
  ],
  "direct_evidence": "Existing owner views show the installed frame, cabin and hood surroundings; donor views show the detached assembly and outline. These views do not recover a metric three-dimensional glass surface. Factory PDF272-274 distinguishes pane/frame/seal/rod/mounting roles, not a bow dimension.",
  "construction_choice": "Shallow single-direction 20mm center advance, quartic transverse depth curve and flat terminal neighborhoods. This is an estimated family-shape comparison, not a donor/owner fitted surface. No independent evidence validates the selected amplitude or vertical curvature.",
  "retained": "Projected pane outline, existing source origin/rake and pillar/quarterlight/body fixing datums. Nine complete source meshes/native groups and complete outer terminal material of five changed groups stay.",
  "unresolved": "Actual glass identity/markings, transverse and vertical curvature, normal gauge/lamination, optical/manufacturing specification, center-body packing and hood registration, compressed seals and wiper sweep. No measured clearance or verified replacement/removal procedure.",
  "factory_sources": [
    "https://www.spridgets.de/downloads/Parts-1977.pdf#page=272",
    "https://www.spridgets.de/downloads/Parts-1977.pdf#page=273",
    "https://www.spridgets.de/downloads/Parts-1977.pdf#page=274"
  ],
  "catalog_check": "Current Moss laminated-glass listing459-910 supplies an application comparison, not curvature or fitted identity; no listed replacement is selected for the owner car.",
  "catalog_source": "https://mossmotors.com/459-910-windshield-glass-laminated"
}