An ornamentaldesign for a string instrument head stock, as shown and described.
FIG. 1 is a perspective view of the string instrument head stock.
FIG. 2 is a frontal perspective view of the string instrument head stock.
FIG. 3 is a rear perspective view of the string instrument head stock.
FIG. 4 is a left lateral view of the string instrument head stock.
FIG. 5 is a right lateral view of the string instrument head stock.
FIG. 6 is a top view of the string instrument head stock.
FIG. 7 is a bottom view of the string instrument head stock; and,
FIG. 8 is a perspective view of an alternate embody of the string instrument head stock for six string instrument.
In the drawings, the broken lines depict environmental subject matter and form no part of the claimed design. The dot-dot-dash broken lines define the bounds of the claimed design and form no part thereof.