Chain

FIG. 1 is a front perspective view of a chain, showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The dash-dot broken lines represent a break line, which depicts a symbolic break in the length of the chain. The dash-dash broken lines illustrate portions of the chain. The broken lines, and the appearance of any portion of the article between the break lines, form no part of the claimed design.