Putter Golf Club Head

FIG. 1 is a perspective rear view of a putter golf club head showing my design;

FIG. 2 is a rear elevational plan view thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a toe end view thereof;

FIG. 5 is a heel end view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown on the drawings form no part of the claimed design.