Here's a nice basic DB (one of my first).
It's a block with many graphic scales (visibility states).
You pick from 1/16" = 1'-0" to 3" = 1'-0", used for architectural & structural dwgs.
Reason for it: basically it's just easier to have this one block instead of 9 different ones.
Have Fun!
****Update**** 7-19-07
I've added allot more scales as well as CIVIL scales too.