521. IOR/R/20/B/567 Reference (shelfmark): IOR/R/20/B/567 Title: File 55/3 Income Tax: exemptions under the Income tax Ordinance 1937 Collection Area: India Office Records and Private Papers Languages: English Date Range: 25 Apr 1940-28 Feb 1941 Extent: 1 file
522. IOR/R/20/B/573 Reference (shelfmark): IOR/R/20/B/573 Title: File 56/3 Reports and Returns: submission of the monthly Lockup returns Collection Area: India Office Records and Private Papers Languages: English Date Range: 19 May 1937-9 Aug 1937 Extent: 1 file
523. IOR/R/20/B/586 Reference (shelfmark): IOR/R/20/B/586 Title: File 56/7B Reports and Returns: material for the Aden Blue Book, 1945 Collection Area: India Office Records and Private Papers Languages: English Date Range: c 1945 Extent: 1 file
524. IOR/R/20/B/614 Reference (shelfmark): IOR/R/20/B/614 Title: File 56/27 Reports and Returns: return of Civil Works buildings Collection Area: India Office Records and Private Papers Languages: English Date Range: 5 Apr 1940-1 May 1940 Extent: 1 file
525. IOR/R/20/B/626 Reference (shelfmark): IOR/R/20/B/626 Title: File 57/3 of 1937-38 Postal Matters: postal establishment: general [5 colls] Collection Area: India Office Records and Private Papers Languages: English Date Range: 28 Oct 1937-29 Aug 1939 Extent: 1 file
526. IOR/R/20/B/628 Reference (shelfmark): IOR/R/20/B/628 Title: File 57/4 1936-39 Postal Matters: postal matters: miscellaneous [31 colls] Collection Area: India Office Records and Private Papers Languages: English Date Range: 11 May 1936-9 Aug 1940 Extent: 1 file
527. IOR/R/20/B/632 Reference (shelfmark): IOR/R/20/B/632 Title: File 57/5 of 1940 Postal Matters: air mail arrangements Collection Area: India Office Records and Private Papers Languages: English Date Range: 18 Jul 1940-3 Sep 1940 Extent: 1 file
528. IOR/R/20/B/633 Reference (shelfmark): IOR/R/20/B/633 Title: File 57/6 Postal Matters: mail services to the Hadhramaut Collection Area: India Office Records and Private Papers Languages: English Date Range: 22 Dec 1938-24 Oct 1939 Extent: 1 file
529. IOR/R/20/B/635 Reference (shelfmark): IOR/R/20/B/635 Title: File 57/8 Postal Matters: revision of rates of postal orders Collection Area: India Office Records and Private Papers Languages: English Date Range: 30 Apr 1940-31 May 1940 Extent: 1 file
530. IOR/R/20/B/664 Reference (shelfmark): IOR/R/20/B/664 Title: File 60/3 of 1940 Miscellaneous: lease of sites [38 colls] Collection Area: India Office Records and Private Papers Languages: English Date Range: 10 Jan 1940-30 Aug 1948 Extent: 1 file