A 19th century copy ( most probably later I known from some times ) , they seems to come from Germany French area all .... very well made and could put on bad road all the collectors ... 
Obiuvsly the french auction house was made a joke , the helmet is clear german, polish or of the east european form . 
here an identical I had : (sorry i made copy on the browser )
German Zischagge helmet in the style of 1600 c.ca 19th century - SOLD -
	
German Zischagge helmet in the style of 1600 c.ca 19th century - SOLD -
Categories: Recently Sold items
here the link: 
http://www.chinaglialorenzo.com/prod...IBILE+++&cl=1&