It is a military whistle with LONDON written on it. There is no handle connection. According to the date of construction, naturally rust and wear occurred over time. The London-Inscribed Military Whistle of World War I was used during the Dardanelles war.

The military whistle is an important instrument in military education, whether in wartime or peacetime. In wartime, commanders used to execute commands by soldiers as soon as possible, without causing the most obvious misunderstanding. In addition,orders are given with the help of the whistle to be understood more clearly and quickly by encoding the sound, play time and number of the whistle previously. Military legislation such as army order, action armament, and order to fire is applied at the sound of a whistle during the period of military training.