I claim the ornamental design for a combined dice case and tray, as shown and described.
FIG. 1 is a perspective view of the dice case of the claimed combined dice case and tray design, in an open configuration;
FIG. 2 is a right side view of the dice case of FIG. 1;
FIG. 3 is a left side view of the dice case of FIG. 1;
FIG. 4 is a front view of the dice case of FIG. 1;
FIG. 5 is a back view of the dice case of FIG. 1;
FIG. 6 is a top view of the dice case of FIG. 1;
FIG. 7 is a bottom view of the dice case of FIG. 1; and,
FIG. 8 is a perspective view of the dice case of FIG. 1 in a closed configuration and the dice tray, with the nestable dice tray removed from the bottom of the dice case. The dice tray is symmetrical and all sides of the dice tray are identical.
The broken lines illustrate portions of the combined dice case and tray and form no part of the claimed design.