Stair A first-floor plan left descending flight
Research representation: none. Architectural checks: pending.
First floor · Original mark: Stair A
6 recorded properties
Still to extract or check- Complete fine chains, rail/stringer/nosing profiles, fasteners, material/finish extents and endpoint classes remain partial.
- Installed quantities, closed landing/slab-opening boundaries, headroom, physical clear widths, source-to-building registration and independent checks remain unresolved.
- Companion W228 and governing original/revision applicability remain unresolved; no accepted geometry or whole-source completion.