Originally Posted by SkinnyGoomba
they're supposed to be worn with a point collar, or button down collar with the buttons undone.
They are also worn with a tab collar (with or without holes.) Oxford cloth being more loosely woven than broadcloth is easier to pin and the holes disappear with washing.
As to wearing a collar pin with a button-down shirt, I would politely disagree. It is a sartorial solecism, "too much of a muchness", as my...