FIG. 1 is a perspective view of a golf putter head showing one embodiment of my new design;

FIG. 2 is a rear elevational view of the golf putter head shown in FIG. 1;

FIG. 3 is a top plan view of the golf putter head shown in FIG. 1;

FIG. 4 is a heel end view of the golf putter head shown in FIG. 1;

FIG. 5 is a toe end view of the golf putter head shown in FIG. 1;

FIG. 6 is a front elevational view of the golf putter head shown in FIG. 1; and,

FIG. 7 is a bottom view of the golf putter head shown in FIG. 1.

The broken line showing of a hosel for the golf putter head is for illustrative purposes only and forms no part of the claimed design.