The ornamental design for a crib, as shown and described.
FIG. 1 is a perspective view of a crib showing my new design;
FIG. 2 is a front view of the crib of FIG. 1;
FIG. 3 is a rear view of the crib of FIG. 1;
FIG. 4 is a right side view of the crib of FIG. 1;
FIG. 5 is a left side view of the crib of FIG. 1;
FIG. 6 is a top view of the crib of FIG. 1; and,
FIG. 7 is a bottom view of the crib of FIG. 1.
The broken line showing of a mattress is for illustrating environmental structure and forms no part of the claimed design. The uneven broken line representations in FIGS. 1–7 are for illustrative purposes only and form no part of the claimed design.