Greek helmets galore

[MeinPanzer]

I suggest you look without prejudice on some vase-paintings (eg from Euphronios) depicting warriors with upturned helmets and tell me: Wouldn't the pulled back helmet fall down backwards?

I don't know, I think this is a case where a practical test could settle this.

You're right, the mixing of elements was quite common concerning helmets, look only on the "piloid"-helmets which combine a pilos-like-shape with a frontlet akin to an attic helmet.
My definition of an hellenistic attic helmet ist the mentioned construction out of seven pieces. The mentioned precursor is preserved for instance in the iron-helmet from Vergina, but the seven-piece-construction is more evident on a helmet from Canosa. This precursor is also depicted on coins from Orthagoreia.

So do you consider, for instance, the Bobuec helmet to be "Attic"? I don't think it's composed of seven pieces, but it has all the characteristics of what most call "Thraco-Attic" helmets - a small crest, a frontlet terminating in volutes, a visor and brim. And what about the Gavani helmet, which has all the characteristics of "Thraco Attic" helmets, but is missing the small crest?

And you're right, I can't be 100% sure in attributing fragments to one particular type. But at least the attribution of the "triangle"-pieces ist undoubtable, because they appear solely on the hellenistic attic helmets. The type-attribution of the other (all published) fragments wasn't made by me, I follow convincing theories.

Which triangle pieces do you mean? The triangular "peak" of the frontlet?

Could you please tell me more?

It was published in Pierre Juhel, “Un casque inédit de la basse époque hellénistique conserve au muse de Prilep (République de Macédoine),” in Revue des Études Anciennes 110, 1(2008): 89-102. It's a "piloid" helmet which is almost identical to that seen on several 2nd c. BC funerary stelae depicting cavalrymen. It looks like the Royal Athena helmet, only without frontlet/volutes and with smaller brim but a more pronounced neck protector; it's also missing cheek pieces. It was found in a burial including a machaira and two javelins near a Hellenistic fort on the northern border of Antigonid Macedonia in Pelagonia. Though it didn't include any horse equipment, it seems very likely from the equipment and helm combination that the deceased was a cavalryman.