The Karabiner 98 Kurz (often abbreviated Kar98k, K98, or K98k) is a bolt action rifle chambered for the 7.92×57mm Mauser cartridge that was adopted in 1935 as the standard service rifle by the German Wehrmacht. The helmet M1942 design was a result of wartime demands. The rolled edge on the shell was eliminated, creating an unfinished edge along the rim. This edge slightly flared out, along the base of the skirt. The elimination of the rolled edge expedited the manufacturing process and reduced the amount of metal used in each helmet. Shell paint colors towards the end of the war typically ran to matte gray-green, and the decals were gradually eliminated to speed up production and reduce the helmet’s combat visibility. Greater manufacturing flaws were also observed in M42 helmets made late in the war. The German Army started experimenting with camouflage patterns before World War II, and some army units used “splinter” pattern camouflage. Waffen-SS combat units used various patterns from 1935 onwards. Many SS camouflages were designed by Prof. Johann Georg Otto Schick.