The first two items below are CORO Heraldic Line pieces. Given the long tradition of the manufacturer, I know they are based on "something" (I just haven’t been able to figure out what).
The third item is a "mystery piece." The person who originally owned it was a crusade-era historian, and an avid genealogist. I was told when it was gifted to me that it had "significance" (but was never told what that significance might be.)
I have exhausted all my research options locally, if someone can lend a hand on ID’ing any of these, I would be greatly appreciative.