Hi guys I'm new here, I have an american 25 cent coin which only has the 19 part of the date on it,Struck on Defective Blank Mint Error .for the past 4 years I have kept an eye on the net for something like this, so can anyone here tell me what something like this is worth.

who is the presenedent on the coin ? That would help determend the value...

George Washington and thanks for your help.