Personally I can’t decide one way or the other without pictures of the decals. These pictures are way too blurry to make out any helpful details. Picture of makers stamp and good pictures of decals. Certain makers used certain decals so the pictures requested will help with that connection. 

Thanks very much 

That's good.  Prussian Wappen and cockades and the lower priced ones compared to the other states.  

Agree with Marshall 100%   Original SS helmets with double or even single decals will be in tens of thousands of dollars...   Try to find the heat stamp and makers marks and that will reveal more about the maker of the helmet as well as the markings on the aluminum liner band..   An Original SS helmet is The Crown Jewel for many who collect TR or even SS related items, and so many dubious helmets have been made over the years and the unknowing ends up spending thousands of dollars on fake junk...   Leigh 

Original DD SS helmets are worth $$$$$.

This is an interesting item.   I think these kanji are "直明" and "柳川".   I'm not a sword professional so I don't know what they mean, but they look like names.   If they were names, the former would usually be "Na-o-a-ki" or "Ta-da-a-ki", and the latter "Ya-na-ga-wa".

Could it be an 1841 Mississippi - measurements seem to be similar?

Dispatch Riders from a Flak unit HQ,I think Russia, this despite the word FRANCE we see on rail car, this perhaps being a commandeered one for German use,

RPB8   1. Rheinisches Pionier-Bataillon Nr. 8, Prussian Helmet Plate and Cockades  then.

Helmet's genuine, decals and fisherman's netting cover are fake. The liner's in awesome condition, and the leather looks like it's original.

Extremely doubtful on its authenticity but German is not my area of expertise. Got it for free from a friend. Might be hard to see the decals but I have no idea how to get the net off. Thanks

I honestly don't know what this musket is but I note the piece appears to be percussion, not flintlock which would be appropriate for 1814; although it could have been converted to percussion well after 1814.