1. ‘File XXIX/3 THE IMAM’S RISING 1913-1920 ATTACK ON GARRISON AT BAIT-el-FALAG1914.’ Date: 1914/1914 Language: EnglishArabic Geographic region: RuwiBait al-FalajMaṭraḥ Extent: 1 volume (42 folios)
2. ‘File XXIX/1 RISING OF IMAM OF NIZWA MAY 1913’ Contributor: Shaikh 'Īsá bin Ṣāliḥ al-Ḥārithī (correspondent) Date: 1913/1913 Language: EnglishArabic Geographic region: Sama’ilIzkiNizwaMaṭraḥ Extent: 1 volume (179 folios)
3. ‘File XXIX/2 THE IMAM’S RISING 1913-1920. RISING of IMAM of NIZWA in MAY 1913 & 1914’ Contributor: Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent)Shaikh 'Īsá bin Ṣāliḥ al-Ḥārithī (correspondent) Date: 1913/1914 Language: EnglishArabicGujaratiSindhi Geographic region: NizwaBarkaMaṭraḥ Extent: 1 volume (237 folios)
4. ‘File XXVIII/1 Internal Politics & Relations with Oman. Narrative of Muscat Affairs 1872-1893’ Contributor: Ṣāliḥ bin ‘Alī al-Ḥārthī (correspondent) Date: 1869/1893 Language: English Geographic region: al-SharqiyyaMaṭraḥZanzibar Extent: 1 file (154 folios)
5. ‘File XXVIII/10 REPORT ON PRESENT CONDITIONS IN MUSCAT AND DEALINGS OF THE STATE WITH THE TRIBES NOMINALLY UNDER IT.’ Contributor: Shaikh 'Īsá bin Ṣāliḥ al-Ḥārithī (correspondent) Date: 1924/1931 Language: English Geographic region: al-BuraimiMaṭraḥDubaiRas al-Khaimah Extent: 1 file (57 folios)
6. ‘File XXVIII/2 INTERNAL POLITICS & RELATIONS WITH OMAN MAJOR SADLER'S DIARY DURING REBELLION OF 1895.’ Contributor: Ṣāliḥ bin ‘Alī al-Ḥārthī (correspondent)Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent) Date: 1895/1895 Language: English Geographic region: NizwaMaṭraḥZanzibar Extent: 1 file (50 folios)
7. ‘File XXVIII/3 Internal Politics and Relations with Oman Correspondence re rebellion of 1895 and subsequent warning to shaikhs against any further attack on Muscat.’ Contributor: Ṣāliḥ bin ‘Alī al-Ḥārthī (correspondent)Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent) Date: 1895/1900 Language: EnglishArabic Geographic region: al-SharqiyyaNizwaMaṭraḥ Extent: 1 volume (62 folios)
8. Coll 20/12 'Muscat: Communications in Road construction' Contributor: Persian Gulf Political Residency (correspondent)Government of India, Foreign Secretary (correspondent) Date: 1930/1932 Language: English Geographic region: Maṭraḥ Extent: 1 file (19 folios)
9. ‘Trigonometrical Survey of the Harbours of Muttra and Muscat on the Coast of Arabia. By Lieut.ts G.B. Brucks & S.B. Haines, Hon. E.I.C. Marine, 1828. Engraved by Richard Bateman’ Contributor: James Horsburgh (publisher)George Edward Brucks (surveyor)Stafford Bettesworth Haines (surveyor)Richard Bateman (artist) Date: 1831/1831 Language: English Geographic region: MuscatMaṭraḥ Extent: 1 map
10. 'Matrah - Proposal to make it Port of Call for B.I. steamers instead of Muscat' Date: 1926/1926 Language: English Geographic region: Maṭraḥ Extent: 1 volume (21 folios)
