FIG. 1 is a left-perspective view of a mail collection device showing our new design;
FIG. 2 is a front view thereof, the rear of the device not being visible during its intended use;
FIG. 3 is a left-side view thereof;
FIG. 4 is a right-side view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a bottom view thereof.
The portions depicted in dashed lines are environment and form no part of the claimed design.