Pen

[0001]FIG. 1 is a perspective view of a first embodiment of a pen showing my new design;

[0002]FIG. 2 is a front view thereof;

[0003]FIG. 3 is a back view thereof;

[0004]FIG. 4 is a left side view thereof;

[0005]FIG. 5 is a right side view thereof;

[0006]FIG. 6 is a top view thereof;

[0007]FIG. 7 is a bottom view thereof;

[0008]FIG. 8 is a perspective view of a second embodiment of FIG. 1;

[0009]FIG. 9 is a front view thereof;

[0010]FIG. 10 is a back view thereof;

[0011]FIG. 11 is a left side view thereof;

[0012]FIG. 12 is a right side view thereof;

[0013]FIG. 13 is a top view thereof;

[0014]FIG. 14 is a bottom view thereof;

[0015]FIG. 15 is a perspective view of a third embodiment of FIG. 1;

[0016]FIG. 16 is a front view thereof;

[0017]FIG. 17 is a back view thereof;

[0018]FIG. 18 is a left side view thereof;

[0019]FIG. 19 is a right side view thereof;

[0020]FIG. 20 is a top view thereof; and,

[0021]FIG. 21 is a bottom view thereof.

[0022]The broken lines shown in the drawings are included for the purpose of illustrating environmental structure and form no part of the claimed design.