In 1988 a collector named Lector Orrick started to put together a study on steel helmet plates. This was published in the Journal Kaiserzeit, and this article expands upon that. The question that we seek to answer is which helmets actually had M15 gray, steel counterparts. The requirement is to find an actual steel helmet plate that is magnetic, not a prewar brass paint over. The true test is to find a picture of each of these helmets. This is an enlisted phenomena for a helmet that was introduced in July of 1915. It was the last pickelhaube in use before steel helmets took over.