In the First World War, British and Imperial forces (including Canadians) widely used Pattern 1908 web infantry equipment—a modular cotton-webbing system designed to carry ammunition, tools, and essentials more comfortably than older gear. A typical set included a belt, straps/braces, ammunition pouches, a water-bottle carrier, and a small haversack like this one. 

Contemporary descriptions of Pattern 1908 webbing describe two common configurations:

• Full Marching Order: the large pack (valise) is worn on the back, while the haversack/small pack hangs at the left hip.  
• Battle Order: the large pack is removed, and the haversack is moved to the back to keep the load tighter and less cumbersome.  

The small pack/haversack was meant for the soldier’s smaller essentials (food and personal kit). Descriptions of Pattern 1908 webbing note it could carry items such as rations and mess gear along with personal necessities. 

W. Yates is inked on the pack