Questions for "late" experts

[Robert Vermaat]

1) is it really so roman and not germanic workmanship?
2) who can tell me where it comes from?
3) who knows the exact dimensions?
4) lacking of the other parts, could I, in your opinion, add that B/W element from another/same style belt buckle, after adapting it properly to the decorative elements of the main buckle?
5) can I alternate to the round elements, some propeller elements (if I recall, there are some findings about that...)?

1) I agree with Aitor, could be both. However the style is (not always but) very often associated with military burials and therefore often associated with the Roman army.
2) Not yet
3) Not yet.
4) Yes you could
5) Show me the propellor stiffener please?

So it's better to imagine...

Ah, but nr. 2 is not the same as nr. 1... these sets do not need to be a perfect mirror of each other.