- TitelBastion ties - Sections, c.1929
- SignaturSPCAA/D/14/17/(1)
- Hersteller
- Form und InhaltBastion ties - sections, by R.A. Kirby
- Umfang1 drawing
- ZugangsbestimmungenAccess is strictly by appointment only with the architectural archivist. Material dating from 1990 to the present day is not currently available for public consultation. Some records are subject to a closure period of 75 years under the Data Protection Act.
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