VPRS 5964 Registers of Outwards Correspondence [also known as Outwards Letter Books]

Successive Instructions to Clerks of Courts specified the creation of Registers of letters and other communications, both inwards and outwards to be kept according to a specified format. By the issue of the 1939 Instructions, these registers were referred to as Letter Books.The Instructions specified that in cases of importance (a term which was not defined), copies of communications outwards should be written in the (outward) letter register. By 1939 this instruction had been refined to read that all outwards correspondence should be entered in the outward letter books and that copies of communications outwards should be kept in the Office for cases of importance.Outwards registers recorded the date of despatch, to whom sent, subject detail and postage costs.

《致法院书记员的系列指令》（Successive Instructions to Clerks of Courts）明确要求设立往来函件与其他通讯记录登记簿（Registers of letters and other communications），并需按照指定格式进行归档留存。随着1939年版指令的发布，此类登记簿被统一称为函件簿（Letter Books）。该系列指令曾规定，对于重要案件（该术语未作明确定义），外发通讯的副本需登记至（外发）函件登记簿中。至1939年，该条款经修订后调整为：所有外发通讯均需登记至外发函件簿，且重要案件的外发通讯副本需留存于本办公机构。外发登记簿需记录发件日期、收件方、事项详情及邮资成本。