The ornamental design for a back design for an iron golf club head, as shown and described.
FIG. 1 illustrates a rear view of a new design of an iron golf club head depicting a cavity formed in a rear face of the golf club and a recess and a rear face extension extending outwardly from the rear face;
FIG. 2 is a side perspective view of the design shown in FIG. 1 depicting a cavity formed in a rear face of the golf club and a recess and a rear face extension extending outwardly from the rear face;
FIG. 3 is a side perspective view of the design shown in FIG. 1 depicting a cavity formed in a rear face of the golf club and a recess and a rear face extension extending outwardly from the rear face;
FIG. 4 is side elevational view of the design shown in FIG. 1 depicting a cavity formed in a rear face of the golf club and a recess and a rear face extension extending outwardly from the rear face;
FIG. 5 is side perspective view taken from the heel of the design shown in FIG. 1 depicting a cavity formed in a rear face of the golf club and a recess and a rear face extension extending outwardly from the rear face;
FIG. 6 is a rear-angled perspective view depicting a cavity formed in a rear face of the golf club and a recess and a rear face extension extending outwardly from the rear face;
FIG. 7 is another rear-angled perspective view depicting a cavity formed in a rear face of the golf club and a recess and a rear face extension extending outwardly from the rear face; and,
FIG. 8 is an angled perspective view taken from the toe of design shown in FIG. 1 depicting a cavity formed in a rear face of the golf club and a recess and a rear face extension extending outwardly from the rear face.
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.