Stair E · W225 transverse Section B-B
Research representation: none. Architectural checks: pending.
Basement · First floor · Second floor · Original mark: B-B
Source-local transverse section through the gate and lower flights.
Source relationships · not a verified physical connection
- documents (printed, verified): Stair E · W225 lower-stories register
7 recorded properties
Still to extract or check- Complete horizontal chain
- Gate clear opening
- Wall thicknesses
- Building transform