When the was introduced during the 1840s, enlisted German troops were issued with peakless forage caps resembling the sailor cap. Officers, however, continued to wear the peaked cap, or , to set themselves apart from the French, who wore the kepi. Initially, German peaked caps were in the uniform color, e.g., Prussian blue, cornflower blue, green, etc., but before the First World War a field grey hat was issued, with piping colour coded for infantry, artillery or cavalry. These caps, known as "crushers", could be worn beneath a or stuffed into a pocket or knapsak