I'm writing an ASB TL where a powerful modern Byzantium is ISOTed to OTL. Are there any "Roman" salutes that aren't overtly similar to Mussolini's?
Incidentally, the Roman salute is not Roman at all, but a produce of European Romanticist movement. It's depicted as similar to how roman saluted because fascists argued it was the case, even if it was clearly not.
I believe it originated in David's Le Serment des Horaces, which, strictly speaking, makes it a product of neoclassicism, not romanticism.