5SPG/J/001-059, Folder 1, Newsletters and circulars 1941-1960 (59 items).
5SPG/J/060-093, Folder 2, Newsletters and circulars 1961-1968 (34 items).
5SPG/J/094-113, Folder 3, Newsletters and circulars 1969-1973 (20 items)
5SPG/J/114-136, Folder 4, Newsletters and circulars 1974-1979 (23 items)