Romulan Empire

2360s

 

TNG S02E11 "Contagion"

 
 
DS9 7x16 Inter Arma Enim Silent Leges - Romulan.png

Clearer image of the same symbol.

 

Variation

 TNG S05E08 "Reunification 2"

TNG S05E08 "Reunification 2"