Many off center coins have uniface reverse strikes, because another planchet was laying underneath the coin that was struck O/C. Yes, it usually happens to O/C's that are 70% off center or more, but not always.
@Rick Stachowski check your 88 off center. That might be reverse of 89. A error and variety that would be awesome!!!!!
Good eye . it is and I was wondering when someone was going to catch it .. It's also die#1 stage C . http://varietyvista.com/01b LC Doubled Dies Vol 2/1988PRDV0061.htm