WWI New Testament Pocket Bible issued by the Y.M.C.A.

Swaythling is a suburb of the city of Southampton in Hampshire, England.
According to the University of Southampton, 'Swaythling was vital to the war effort in two key ways. Firstly, it was the site of a Remount Depot, used for the stabling and training of army horses and mules. The depot at Swaythling, one of four created to support the war effort, was the UK’s largest. Its primary role was as a collection point for animals being shipped abroad. Between 1914 and 1919 it processed nearly 400,000 horses and mules – essential to the success of the armed forces.
Secondly, it was a base for the US Naval Air Service. North Stoneham Farm, on the edge of the estate, served as an airfield and service complex until 1919, when it reverted to RAF control. The intention of the base was to assemble and repair the aircraft of the Northern Bombing Group, in readiness for bombing raids along the Belgian coast planned for 1918'.
As there would have been a large number of servicemen in the area, the Y.M.C.A. hut would have been a large recreation establishment with discrete rooms for a library, meals, showers and games.