The ornamental design for a crib, as shown and described.
FIG. 1 is an upper perspective view showing our new design for a crib.
FIG. 2 is a lower perspective view thereof.
FIG. 3 is front side plan view thereof.
FIG. 4 is back side plan view thereof.
FIG. 5 is a right side plan view thereof, the left side being a mirror image.
FIG. 6 is a top side plan view thereof.
FIG. 7 is a bottom side plan view thereof.
FIG. 8 is a cross-section plan view along lines 8-8 of FIG. 6.
FIG. 9 is an enlarged right side lower perspective view of the cross-section view of FIG. 8.
FIG. 10 is an enlarged right side upper perspective view of the cross-section view of FIG. 8; and,
FIG. 11 is an enlarged left side upper perspective view of the cross-section view of FIG. 8.
The broken lines adjacent the shaded areas represent the boundaries of the claimed design, while the other broken lines representing the outline of portions of the crib depict environmental subject matter only, and form no part of the claimed design.