Dock

FIG. 1 is a front perspective view of a dock showing the claimed design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a front view thereof.

The broken lines in the figures show portions of the dock that form no part of the claimed design.

The shade lines in the figures show contour and not surface ornamentation.