Container Base

FIG. 1 is a top-front-side isometric view of a container base of the design;

FIG. 2 is a bottom-side isometric view thereof;

FIG. 3 is bottom-front isometric view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a left side elevation view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof.

The broken lines shown in the drawings are included for the purpose of illustrating portions that form no part of the claimed design.