CAB 24 interwar memoranda

From 1919 to 1939, with the return to a traditional Cabinet size, the referencing notation for Cabinet memoranda changed to CP. Up until 1922 these papers were numbered consecutively from 1 to 4379, resembling the G and GT series before. From 1923 onwards a new referencing system was used. It included the year, so CP (39) 1 denotes the first paper laid before the Cabinet in 1939. In the earliest stages, the year sometimes followed the paper number CP 200 (23). The sub-series of reports is listed separately, similar to the First World War period.