This is a detailed Zbrush sculpt of a head and helmet (Pickelhaube) - part of a Prussian Infantry figure I am working on. It is based on the Prussian uniform in use during the Franco-Prussian war of 1870-71.
If you are interested in military models from this period you may want to see my model of a French Infantry figure - Franco-Prussian war. Click here to view this model https://skfb.ly/6Vnys