- TitelLevels of buttresses around the dome, c.1925-1931
- ReferentieSPCAA/D/14/10/(1-3)
- Datum1 dated 1930, 2 undated
- Vervaardiger
- Bereik en inhoudPlan of dome showing levels of buttresses titled 'Levels and Measurements taken by H.W. Jolliffe', March 1930; plan of dome showing levels of buttresses, undated; and diagrammatic plans and sections at Whispering Gallery level, undated
- Omvang3 drawings
- Voorwaarden voor raadplegingAccess 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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