What helmet is this?

[Anonymous]

Well bout the relief...<br>
<br>
i am a bit puzzled... since i once saw an image of an auxiliarii wearing a spangen helmet but it might have been 2nd century ad......... somewhere in a book...<br>
<br>
duh.........<br>
<br>
forgot the title of course.......<br>
<br>
best wishes!<br>
<br>
M.VIB.M.<br>
<br>
<p>V COH II<br>
LEGIO X GEMINA<br>
EX GER INF</p><i></i>