1. IOR/X/12131/1 Reference (shelfmark): IOR/X/12131/1 Title: Ground Floor Plan Collection Area: Map Collections Languages: English Date Range: 1964 Extent: 1 sheet
2. IOR/X/12131/3 Reference (shelfmark): IOR/X/12131/3 Title: Third Floor Plan Collection Area: Map Collections Languages: English Date Range: 1966 Extent: 1 sheet
3. IOR/X/12131/4 Reference (shelfmark): IOR/X/12131/4 Title: Fourth Floor Plan Collection Area: Map Collections Languages: English Date Range: 1966 Extent: 1 sheet
4. IOR/X/12131/5 Reference (shelfmark): IOR/X/12131/5 Title: Fifth Floor Plan Collection Area: Map Collections Languages: English Date Range: 1966 Extent: 1 sheet
5. IOR/X/12131/8 Reference (shelfmark): IOR/X/12131/8 Title: Ground Floor Plan Collection Area: Map Collections Languages: English Date Range: 1959 Extent: 1 sheet
6. IOR/X/12131/2 Reference (shelfmark): IOR/X/12131/2 Title: Second Floor Plan' and 'Part of First Floor Collection Area: Map Collections Languages: English Date Range: 1966 Extent: 1 sheet
7. IOR/X/12131/6 Reference (shelfmark): IOR/X/12131/6 Title: Plans of 6th, 7th and 8th Floors Collection Area: Map Collections Languages: English Date Range: 1966 Extent: 1 sheet
8. IOR/X/12131/7 Reference (shelfmark): IOR/X/12131/7 Title: Plan of 10th, 11th Floors and Roof Collection Area: Map Collections Languages: English Date Range: 1966 Extent: 1 sheet
9. IOR/X/12131/9 Reference (shelfmark): IOR/X/12131/9 Title: Details of extract duct, 3rd Floor Wing Block, (West Section) Scope & Content: Produced by H. J. Cash and Company Ltd., Bexley Sheet Metals Ltd., Woolwich, London. Collection Area: Map Collections Languages: English Date Range: 1967 Extent: 1 sheet
10. IOR/X/12131 Reference (shelfmark): IOR/X/12131 Title: A collection of building plans of Orbit House, Blackfriars Road, London Scope & Content: Collection of dyeline plans of the Orbit House building. Most are plans of whole floors, one shows details of an extract duct. Collection Area: Map Collections Languages: English Date Range: 1959-1967 Extent: 9 sheets