The ornamental design for a telescope, as shown and described.
FIG. 1 is a left side view of the telescope of the present invention;
FIG. 2 is a right side view of the telescope of FIG. 1;
FIG. 3 is a bottom plan view of the telescope of FIG. 1;
FIG. 4 is a top plan view of the telescope of FIG. 1;
FIG. 5 is a rear elevational view of the telescope of FIG. 1;
FIG. 6 is a front elevational view of the telescope of FIG. 1; and,
FIG. 7 is a perspective view of the telescope of FIG. 1.
Features illustrated with dashed lines are not considered features of the invention being claimed, but rather illustrate an exemplary environment for the claimed features illustrated with solid lines.