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Officer's Wool Service Cap with Officer's cap insignia
The service cap was worn by soldiers in a garrison environment, often with the leather and woven canvas garrison belts. The service caps saw very limited use in France by enlisted men. Officers also wore the service cap, but theirs was distinguished by a band of gold colored trim around the cap and the larger officer's insignia. The officers' cap was more commonly seen worn overseas, especially by senior, and high ranking officers such as General Pershing.
Enlisted Men's Wool Service Cap with enlisted men's cap insignia
The enlisted men's service cap was made from a rougher weave of wool and lacked the gold mohair band of the officer's cap. Note the enlisted men's cap insignia.
M1912 service hat
Also known as the campaign hat, this size 7 Service Hat has a shoestring type chin strap rather than the leather chin strap found on later style hats. However this hat does have makeshift slits on each side for a leather chin strap. A colored hat cord denoting the soldier's branch of service (i.e.- Light blue for infantry, yellow for cavalry, red for artillery, black and gold for officers ) was worn on the hat. During World War I, the much loved campaign hats were replaced by the wool overseas cap. This was done because the campaign hats could not be stored easily when not worn.
Wool overseas caps were worn by soldiers not at the front line in France. These hats replaced the campaign hats because they could be easily folded in half and stowed in a pocket or haversack. Many variations of the overseas cap exist including variations in cut and wool quality. The most common examples are shown. Some overseas caps were even manufactured by French and British tailors. Soldiers would often add insignia to the side of their caps. This would include US collar disks, branch of service disks, also officer's insignia such as crossed rifles.
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