World War I Imperial German Officer’s Pickelhaube (Spiked Helmet)

World War I Imperial German Spike Helmet, also known as Pickelhaube. Has original eagle, chinstrap, and spike. One of the rivets on the spike has been replaced with an American “variant,” and another is missing. Chinstrap is damaged, and has been held together with small piece of green plastic. Outside has some light cracking and wear, otherwise in good shape.