On dating of the late roman helmets.

[Agraes]

The Der el Medineh/Leiden type spangenhelm can't be dated precisely between the late 3rd and 6th century. No datatable context is known for either of them as the first was found in a well and the other on a mummified body. The usual late 3rd-early 4th century ascribed to them is only linked to similar helmets beeing depicted on the arch of Galerius. Two similar helmets came from a possible 5-6th century context in Sinj, Croatia, and this type of spangenhelm seems the direct ancestor of the decorated Baldenheim type. Speaking of those, they are not known until the second half of the 5th century.