steel sash layout
Research representation: none. Architectural checks: pending.
Fourth floor
W207 component-local evidence only; no accepted canonical transform or physical mesh.
Source relationships · not a verified physical connection
- part of (observed, unreviewed): masonry opening and sash detail
8 recorded properties
Still to extract or check- Accepted building bay and host wall
- Finite physical sash/frame/glazing sections
- Complete opening boundary and depth