There is quite a bit of info out there on that helm and others like it.
Its a 4th century Roman "ridge helm" heavily decorated.
The Berkasovo treasure helm, Serbia I believe.
Often referred to as a Sassinad helm, and or a "ridge helm"
I am interested in this particular piece. Is it an original or a reproduction? It is in excellent condition if it is an original. What is it made of? Etc...
Roman jewelled ridge helmet, first twenty years of the 4th century CE, iron, gilded silver leaf, glass, gems. From the "Berkasovo treasure", Muzej Vojvodine, Novi Sad (Serbia). On display at temporary exhibition in the Colosseum (aug 2013), Rome, Italy.
The two most significant items, the magnificent gilded helmets were brought to the Museum of Vojvodina back in 1955 from Berkasovo village in Srem, near Šid. They were found by a woman, while ploughing the field she owned. The excavation by a sondage showed that these helmets were part of a hoard, along with two silver belt-shackles, a pipe from silver tinplate, a silver loop for straps, several iron fragments and gilded silver tinplate. The helmets are made from wrought-iron, coated with thin silver gilded tinplate and presumably they had a leather foundation. The more magnificent one of the two helmets is additionally ornamented with imitated emerald precious stones, onyx and chalcedony semi-precious stones, manufactured in glass paste, placed into foundations of various shapes. Particularly significant are inscriptions in Greek and Latin, explanations for which are many.
Its in excellent condition to a certain extent.
The exterior shell is in excellent condition while I believe the interior iron is not.
Its pretty much a laminate, an exterior layer formed and shaped over the iron interior