TNG S03E06 Shows Wesley wearing a delta that is all silver. Is this an Acting Ensign symbol?

Brad Wilder

In VOY S07E16, there are many partial views of Quarran Security. But is there a clear view?

Brad Wilder

W...T...should this be considered a unique delta?

Brad Wilder

Terran officers in ENT wear this badge, but it's not mentioned.

Brad Wilder

See this Klingon symbol a lot, but can't find what it represents.

Brad Wilder