The ornamental design for a two-tiered container, as shown and described.
FIG. 1 is an isometric view of a two-tiered container embodying the design, with container brackets being shown in broken lines for illustrative purposes only and forming no part of the claimed design;
FIG. 2 is front elevation view of the two-tiered container of FIG. 1 and again illustrating the container brackets in broken lines for illustrative purposes only so as not to form any part of the claimed design;
FIG. 3 is a side elevation view of the two-tiered container of FIG. 1, with the opposite side elevation view being essentially a mirror image thereof, and further illustrating the container brackets in broken lines for illustrative purposes only so as not to form any part of the claimed design;
FIG. 4 is a rear elevation view of the two-tiered container of FIG. 1 and illustrating the container brackets in broken lines for illustrative purposes only so as not to form any part of the claimed design;
FIG. 5 is a top-down plan view of the two-tiered container of FIG. 1 and illustrating the container brackets in broken lines for illustrative purposes only so as not to form any part of the claimed design; and,
FIG. 6 is a bottom-up plan view of the two-tiered container of FIG. 1 and illustrating the container brackets in broken lines for illustrative purposes only so as not to form any part of the claimed design.