The ornamental design for an iron-type golf club, as shown and described.
FIG. 1 illustrates a rear perspective view of an iron-type golf club head with multiple cavity profiles;
FIG. 2 illustrates a rear, left perspective view of an iron-type golf club head with multiple cavity profiles;
FIG. 3 illustrates a bottom perspective view of an iron-type golf club head with multiple cavity profiles;
FIG. 4 illustrates a rear, right perspective view of an iron-type golf club head with multiple cavity profiles; and,
FIG. 5 illustrates another rear perspective view of an iron-type golf club head with multiple cavity profiles.
The broken, dashed lines shown in the various figures depicting embodiments of the invention are included for the purpose of illustrating environment and do not form any part of the claimed design.