If this is from a mint set than check the lettering in Cents, you might find notches on the bottom of the C, the E, and the N in "Cents" I have one exactly like yours but mine has doubling on the "Cents" but I think its common, I could be wrong though.
They say coin roll hunting is like a box of chocolates, you never know what your gonna get.... I think it went something like that, I was too busy looking at coins.
This is my very first error coin I found that got me hooked. - 1989 Belize 25 Cent's with a Doubled Die Reverse http://goccf.com/t/362747