Original caption: The original Type "B" brodie pattern steel anti-shrapnel helmet approved by the War Office in September 1915. A steel helmet has been issued to the French troops in the spring of 1915. In August and September, the British authorities made experimental types of the helmet invented by Mr Brodie, of which the second, "B" was approved. Manufacture was begun towards the end of September. It was made in one unit and was of mild steel, and afforded protection against a shrapnel bullet, 41 to the pound, fired to give a striking velocity of 400 feet per second. Its manufacture was a comparatively simple matter, and the rate of production had reached 850 daily when, in the second week of October, decision was taken to provide a helmet of hardened maganese steel.