The little pointy things on the bottom of the letters don't worry I had no idea what they were called either just said it in my Overton book
No, not at all. The Overton book is massive. There are certain more popular varieties that I automatically search for, however. There are some R.5 1827's, that I don't know. And other dates too. This one having a name, though (no serifs), combined with it being a key date, makes it one that everyone can easily identify and search for.
from wikipedia In principle, a sheriff is a legal official with responsibility for a county/parish. In practice, the specific combination of legal, political and ceremonial duties of a sheriff varies greatly from country to country.