Embosing and Tinning Scabbard plates ect ?

[Peroni]

In an other centurio chamber an Imperial Gallic Helmet E was found, also an offering. It did not have a forehead band as all other Imperial Gallic helmets have. It wasn't missing either, no holes for fastening it were visible under Q rays. The appliques were silvered. The edges on the front and neckplate were not covered in bronze but with leather with goldfoil on it. I also think this to be a centuriohelmet.

Are there any drawings of this helmet Maarten?

I wonder is it the one that is listed in HRR with the rearward set crest holder?