Patent ID: 8216088

Claim:
A head for an iron-type golf club comprising: an iron-type body extending from a shaft-attachment structure, the iron-type body having a first average density; and a ball-striking face member located on a front surface of the iron-type body, the ball-striking face having a second average density that is less than the first average density; a first mass member releasably attached on a back surface of the iron-type body adjacent to substantially an entire back-surface peripheral bottom edge of the iron-type body, a second mass member releasably attached on the back surface of the iron-type body adjacent to substantially an entire back-surface peripheral top edge of the iron-type body, wherein the back surface of the iron-type body includes a raised central portion and a raised heel portion both raised toward a rear of the body relative to the back-surface peripheral edge, and wherein at least one of the first and second mass members is releasably attached between the raised central portion and the raised heel portion.