This specimen is so perfectly centered and symmetrical you might not even know it is a broadstrike (many are oblong and noticeably distorted). Some of you may think you see a rim (and thus making it a "planchet", not a "blank"), but there is no rim. Nor is there a reeded edge a standard Washington quarter has; as you can see, it appears smooth like on a nickel. Broadstrikes are rare, but not scarce. But they are very rare to find stamped on a Type 1 blank instead of a planchet. This one is graded MS65 by ANACS. Below is my other 1998 broadstruck quarter (currently ungraded), but it is stamped on a planchet (with an upset rim) and is noticeably oblong and the edge is contorted. To learn a little more about broadstrikes, click the link below: http://www.error-ref.com/broadstrikes/
This could well be a coin I sold several years back. I also was in awe of the fact that it was so well centered . . . and it also was in an ANACS dolder, although I don't honestly recall the grade.