Abstract: A golf putter having a pair of parallel linear edge members disposed on its top surface separated by a top surface opening and a pair of parallel linear indicator members disposed on the upper surface of the sole and visible to the golfer through said top surface opening, whereby visual alignment of said linear edge members with said linear indicator members indicates to the golfer that the putter head is properly positioned and that the golfer's eyes are vertically disposed above target putting line.

Abstract: A golf putter having a pair of parallel linear edge members disposed on its top surface separated by a top surface opening and a pair of parallel linear indicator members disposed on the upper surface of the sole and visible to the golfer through said top surface opening, whereby visual alignment of said linear edge members with said linear indicator members indicates to the golfer that the putter head is properly positioned and that the golfer's eyes are vertically disposed above target putting line.

Abstract: A modular golf club anchoring system and method for rapidly and conveniently custom fitting individual clubs is suitable for all standard clubs with minimum preparation. A standard hosel may be pre-prepared both to receive and to prevent from rotation a first interconnectable means, by complementary interacting surfaces of such hosel and means. A standard shaft may be pre-prepared to accomplish the same with a second interconnectable means, by adhesive bonding, mechanical fit, or a combination thereof. Shaft and head may be rapidly and removably joined by connecting the two interconnectable means after inserting therebetween wedge means which will interact with the interconnectable means to act like a collet as the connection is tightened, thereby translating the compressive longitudinal forces into expansive transverse forces securing the shaft from separation or further, unwanted rotation.