The Australian Delegation to the United Nations Security Council Committee of Good Offices seems to have started its unnumbered alphabetical filing system using a system of printed blue folders with numbered partitions and a list of contents on the front. 

There are a number of individual files holding 1947/48 papers in plain covers marked 'Australian Delegation, Good Offices Committee' by hand in the top left hand corner, with an alpha symbol in the right hand corner. It is unlikely that there was a register or file list as the system would have been regarded as 'self-indexing'. Most of the surviving early file covers contain papers from 1947/48 up to 1950/51, indicating that the same system was maintained through the life of the mission.

Papers with a date range later than 1948 are in Australian Consulate General file covers or plain folders without any external indication that they belong to the Delegation. File titles are generally brief and uninformative - presumably the Delegation staff were thoroughly familiar with the subject matter. Sometimes Security Council document numbers appear in the file number space, or are given as a title, suggesting that UN documentation may have been held separately instead of (or as well as) being placed on file. 

The records as accessioned in 1979  contain several large bundles of UN official documents loose inside Department of Foreign Affairs (post 1970) covers. A list of Security Council and Good Offices Committee/UNCI (United Nations Commission for Indonesia) documents to early 1949, with an explanation of the numbering system, is held in one of the files ('Symbols of documents').

It is not possible to reconstruct the original alphabetical filing system completely, but items not marked have been intersorted with the earlier marked files according to a simple alphabetical code which is more or less consistent with the original scheme. The series was then numbered for retrieval purposes.