VPRS 11728 Subject Index to General Correspondence, Annual Single Number System

This Subject Index to VPRS 11563 General Correspondence Files, Annual Single Number System was produced in 1980. The multiple number classification system is based on VPRS 11730 Authorised List of Subject Headings, Annual Single Number System, 1971-1984.The purpose of this record was to index VPRS 11563 General Correspondence Files, Annual Single Number System for the period 1920-1970. The funding available at the time allowed for the files to be indexed until 1926 only. (In short, the series date range is 1980 to 1980; the contents date range is 1920 to 1926.)