Star Trek Enterprise NX-01 Crossed Swords Patch Place this Enterprise NX-01 Crossed Swords patch anywhere! Replicated from screen-fimed patches! From the Mirror Universe. Beautifully replicated from screen-filmed patches, the NX-01 with swords crossed patch from the Mirror Universe depicts the Enterprise NX-01 from an aerial view with two swords crossing at the aft of the ship. Patch measures 3 1/2-inches in diameter.