[B.I]

back to the helmet, a similar piece in the hermitage. also, to reinforce the dating, this one dates to the same period (but a few years younger). the overall shape does indeed recall an earlier period of ottoman influence, but the shape is also a development of the earlier (and shallower) tartar helmets, as is the decoration.
thanks again to michal for this post and the images from his museum.
i think it down to mr. nordlunde to step onto the stage and provide a translation.