AWM4, Sub-class 13/109 - 5th Australian Medium Trench Mortar Battery

First World War Diaries - AWM4, Class 13 Artillery. Archival series AWM4 comprises the diaries of the Australian Imperial Force (AIF) created during the First World War. The war diaries generally consist of war diary or intelligence summary sheets located at the beginning of each diary which record the date of each entry, the unit's location, a summary of events and any remarks or references to appendices. The appendices, which make up the larger part of each diary, may include orders, despatches, instructions, reports, telegrams, and decisions taken; daily situation reports; staff duties; accounts of operations; changes in establishment or strength; and a summary of information received. The overall quality of the diaries can be variable and usually reflects the attitude of the unit's commanding office, and the skill and conscientiousness of the individual charged with compiling it. Numbering System: This series has a three part numbering system: the first number represents the broadest category, such as arm, service or corps a unit belonged to; the second number represents the particular unit; and the third number is a chronological identifier that represents the month and year for each diary.

第一次世界大战日记——AWM4档案第13炮兵类。档案系列AWM4收录了第一次世界大战期间澳大利亚帝国部队（Australian Imperial Force, AIF）的战地日记。此类战地日记通常以单本日记开篇的日志或情报摘要页为起始，该部分记录每条条目对应的日期、部队部署位置、事件概要，以及附录相关备注或引用说明。作为单本日记核心组成部分的附录，可涵盖各类行动命令、公文急件、指示文件、战况报告、电报及决策纪要；每日战场态势报告；参谋勤务日志；作战行动记述；部队编制或兵力变动情况；以及接收情报汇总。日记整体质量参差不齐，通常取决于部队指挥部门的重视程度，以及负责编纂人员的专业能力与尽职态度。编号规则：本系列档案采用三段式编号体系：第一段数字代表最宽泛的分类范畴，如部队所属兵种、勤务部门或军团；第二段数字对应具体作战单位；第三段数字为时序标识，用于标注每本日记对应的月份与年份。