Back design for an iron golf club head

FIG. 1 is an elevational view of the back design for an iron golf club head;

FIG. 2 is a perspective view thereof;

FIG. 3 is perspective view thereof;

FIG. 4 is a bottom perspective view thereof;

FIG. 5 is a heel end perspective view thereof;

FIG. 6 is a toe end perspective view;

FIG. 7 is an inverted perspective view; and,

FIG. 8 is a perspective view.

The broken, dashed lines shown in the various figures depicting embodiments of the invention are included for the purpose of illustrating context and do not form any part of the claimed design. In some embodiments, however, the broken, dashed lines may be present in an iron golf club head.