The ornamental design for: auxiliary pocket, as shown and described.
FIG. 1 is a perspective view showing my new design for a first embodiment of an auxiliary pocket;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side elevational view thereof;
FIG. 8 is a perspective view showing my new design for a second embodiment of an auxiliary pocket;
FIG. 9 is a front elevational view thereof;
FIG. 10 is a rear elevational view thereof;
FIG. 11 is a right side elevational view thereof;
FIG. 12 is a top plan view thereof;
FIG. 13 is a bottom plan view thereof; and,
FIG. 14 is a left side elevational view.
The broken lines showing a person wearing an embodiment of the invention in FIGS. 1 and 8 are for illustrative purposes only and form no part of the claimed design.