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And if you have the time, what about Terror Blu 66 (Persecuzione), Terror Blu 108 (Messaggio occulto), & Terror Blu 139 (Le spirali del tempo)?
This one was long overdue, and when I finally couldn't wait anymore, I went ahead and made it with spirali instead of the bow-tie Cesar suggested.
S. testa regulari, spirali, orbiculata: anfractibus tereti - bus, contrariis.