The ornamental design for a telescope, as shown and described.
FIG. 1 is a perspective view of a telescope of the present invention;
FIG. 2 is a rear elevational view of the telescope of the FIG. 1;
FIG. 3 is a front elevational view of the telescope of FIG. 1;
FIG. 4 is a top plan view of the telescope of FIG. 1;
FIG. 5 is a bottom plan view of the telescope of FIG. 1;
FIG. 6 is a right side view of the telescope of FIG. 1; and,
FIG. 7 is a left side 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.