This looks like the beginnings of a Prussian "tack" helmet to me
I see some UNUSUAL nose art (like maybe a Salt Rat with a Tack helment just itching to be splattered up here!!!! lol
PS
Wow: I didn't forget from picking up the camera, downloading, renaming, resizing, attaching to this post, to checking, and editing this note--less than 5 min---
PSS SS #1 remember this was an internal bomb bay ferrytank, hence the unusual shape