I do NOT think that it is a counter stamp, because there is no evidence of bruising (which would have happened post mint), to the heraldic eagle on the center, on the opposite side of the coin.
The central character in it's own round field is a part of the die design. If this character does not normally appear, then this design is a separate sub type, not a variety.
The central character in it's own round field is a part of the die design. If this character does not normally appear, then this design is a separate sub type, not a variety.





















