FIG. 1 is a tilted view of a pen rotated between a front and side elevation view showing my new design.
FIG. 2 is a front elevation view thereof.
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a left side elevation view thereof, with the right side elevation view being a mirror image of the left side elevation view.
FIG. 5 is a top plan view thereof.
FIG. 6 is a bottom plan view thereof.
FIG. 7 is an enlarged top plan view thereof; and,
FIG. 8 is an enlarged bottom plan view thereof.
The broken lines in the figures illustrate environment only and form no part of the claimed design.