Iron Golf Club Head

FIG. 1 is a perspective rear view of an iron golf club head showing our design; FIG. 2 is a rear elevational view thereof; FIG. 3 is a heel end view thereof; FIG. 4 is a toe end view thereof; FIG. 5 is a bottom plan view thereof; FIG. 6 is a top view thereof; and, FIG. 7 is a front elevation view thereof. The broken lines shown on the drawings form no part of the claimed design.