The Private of Baginda Omar (1806-1876) (ANM SP 6) held by the Arkib Negara Malaysia Constitutes one of the most important accessible primary sources of historical information available on the socio-political and economic development of Terengganu Darul Iman in 19th and early 20th centuries. Inscribled as the fifteenth tangible heritage object in the National Heritage Department of Malaysia's (Jabatan Warisan Negara Malaysia) National Heritage List (Senarai Warisan Kebangsaan), these royal letters have been preserved, in the various forms,by the National Archives of Malaysia (Arkib Negara Malaysia at their headquartes in Kuala Lumpur since 1960. With fifty-five original letters and one official proclamation written in malay-jawi, core documents in the collection consists of the official and private correspondence from the personal archives of Baginda Omar, Sultan Terengganu IX (1806-1876) and a smaller cache of the similar letter from Sultan Zainal Abidin III, Sultan Terengganu IX (1866-1918). They were bequeathed to the nation by the heirs of al-Marhum Engku Pengiran Anum (1888-1963), co-discoverer of the Batu Bersurat Terengganu.His grandfather, Shaykhul 'Ulama' Tok Ku Tuan Besar Paduka Indera Engku Syed Seri Perdana Engku Syed Muhammad (1795-1878), had served as Menteri Besar to Baginda Omar. This study is the first comprehensive attempt at rationalising the complexity of this challenging collection, by presenting its principal material in a systematic and coherent manner. This publication has been divided into two parts. Volume I provides an introduction to the collection and its main subject, with a critical transliteration and annotated translation of the original Malay-Jawi documents. Volume II offers a descriptive catalogue to the collection, plus a diplomatic transliteration of the Malay-Jawi letters. It is hoped that this preliminary examination of the letters will provide the basis and impetus for further studues to be made of the collection. Raimy Che-Ross has been teaching Malay to diplomat and armed forced personnel in Australia since 1994. He has Previously held research appointments with the Malaysian Commonweath Studies Centre (MCSC) at Trinity College, Cambridge, Dewan Bahasa dan Pustaka Malaysia, amd the National University Singapore. He is a NAATI certified professional Malay translator and Malay consultant to the Australian media broadcaster SBS (Sydney). His publications and research papers to date include introductory studies on Hikayat Abdullah, Hikayat Hang Tuah, Hikayat Hikamat, Syair Raja Perak and Misa Melayu. Raimy divides his time between Kuala Lumpur and Canberra.