Rotated Die ?

[G.A.P.metal]

I have a 1918 Mercury Dime on mint mark, pole on back rotated at 11 and 5 o clock from front...nothing in Red book.
Hard to get a picture of this but it`s off,very noticeable for other Dimes i have.
Anyone know or seen one of these ?
Gary

 

[kcm]

If memory serves, the mint allowed anything through up to 15° rotation. If the pole runs 11 o'clock to 5 o'clock, that would be a 30° rotation.