W207 4/11 to Broadway fourth-floor opening identity gate · retracted
Research representation: none. Architectural checks: pending.
Fourth floor · Original mark: 4/11
Source relationships · not a verified physical connection
- retracts prior identity for (derived, verified): broadway · broadway-bay-02 · window opening
- applicability for (derived, verified): W207 opening above fourth-floor finish line
- prohibits geometry transfer from (derived, verified): broadway · broadway-bay-05 · window opening
6 recorded properties
Still to extract or check- Direct transcription of the remaining Broadway fourth-floor historic marks after 4/12
- Formal printed legend sentence defining the split-circle syntax
- Accepted equivalence between W207 masonry/jamb limits and the IMG_1231 traced visible-envelope boundary
- Exact wall-face X and physical opening depth
- Accepted rough, masonry, frame and clear opening boundary classifications
- Accepted W207 Section C-C return-depth assignment to a verified opening
- Independent surveyed station for the W207 4/11 instance
- Opening frame profile, sill, head, anchors and construction interfaces
- Whole-sheet review of all W207/W208 notes, material codes, revisions and callouts