The ornamental design for a golfputterhead, as shown and described.
FIG. 1 is a perspective view of a golf putter head embodying my new design;
FIG. 2 is a front elevational view, the opposite side rear elevational view
being a mirror image thereof;
FIG. 3 is an end elevational view, the opposite end view being a mirror
image thereof;
FIG. 4 is a top plan view; and
FIG. 5 is a bottom plan view. The location of and means of attachment of
the golf putter head to a club shaft form no part of the claimed design
and, accordingly, are not shown.