This poster was issued to help recruit for the Reserve Company of the West Ham Battalion. Formed at Brentwood in September 1915 they undertook their training in Cambridge and after a few men were initially sent as replacements to those men who had been killed in December 1915, the unit became the 14th (Reserve) Battalion of the Essex Regiment under the command of the Mayor's son, Captain Leo Dyer.
They also played football at the Boleyn Ground against shopkeepers from Upton Park.
On the 1st September 1916 they were converted into 98th Training Reserve Battalion of 23rd Reserve Brigade at Aldershot, which eventually ended up being commanded by Robert Swan who was an Original volunteer to the West Ham Battalion.