If you mean an "L" at the end of a time (i.e. 1330L), the "L" stands for Local...as in local time. It differentiates from another standard military time, "Z" or Zulu, aka Greenwich Mean Time.
Well, Cloister Black is a type of font that is AWESOME!!! It is not used that often but looks really cool! If you want to see it go to this link http://www.dafont.com/Cloister-Black.Font YOU'LL...
In Ireland it meant/means IRA supporter, it probably has different meanings in other parts of the world though.
The black armband is a symbol for mourning. It's worn during funerals, and funereal...